added new stuff
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//
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//
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// NLMSvariants.c
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//
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// Created by FBRDNLMS on 26.04.18.
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//
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//
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#include <stdio.h>
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#include <math.h>
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#include <time.h>
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#include <stdlib.h>
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#include <string.h>
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#include <float.h> // DBL_MAX
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#define NUMBER_OF_SAMPLES 1000
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#define WINDOWSIZE 5
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#define tracking 40 //Count of weights
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#define learnrate 0.8
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#define PURE_WEIGHTS 0
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#define USED_WEIGHTS 1
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#define RESULTS 3
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#define DIRECT_PREDECESSOR 2
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#define LOCAL_MEAN 4
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#define TEST_VALUES 5
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#define DIFFERENTIAL_PREDECESSOR 6
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#define RGB_COLOR 255
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#if defined(_MSC_VER)
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#include <BaseTsd.h>
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typedef SSIZE_T ssize_t;
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#endif
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//double x[] = { 0.0 };
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double xSamples[NUMBER_OF_SAMPLES] = { 0.0 };
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/* *svg graph building* */
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typedef struct {
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double xVal[7];
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double yVal[7];
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}point_t;
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point_t points[NUMBER_OF_SAMPLES]; // [0] = xActual, [1]=xpredicted from localMean, [2]=xpredicted from directPredecessor, [3] = xpredicted from differentialpredecessor, [4] = xError from localMean, [5] xError from directPredecessor, [6] xError from differentialPredecessor
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/* *ppm read, copy, write* */
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typedef struct {
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unsigned char red, green, blue;
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}colorChannel_t;
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typedef struct {
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int x, y;
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colorChannel_t *data;
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}imagePixel_t;
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static imagePixel_t * rdPPM(char *fileName); // read PPM file format
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void mkPpmFile(char *fileName, imagePixel_t *image); // writes PPM file
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int ppmColorChannel(FILE* fp, imagePixel_t *image); // writes colorChannel from PPM file to log file
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void colorSamples(FILE* fp); // stores color channel values in xSamples[]
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/* *file handling* */
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char * mkFileName(char* buffer, size_t max_len, int suffixId);
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char *fileSuffix(int id);
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void myLogger(FILE* fp, point_t points[]);
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void mkSvgGraph(point_t points[]);
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//void weightsLogger(double *weights, int var);
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/* *rand seed* */
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double r2(void);
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double rndm(void);
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/* *math* */
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double sum_array(double x[], int length);
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void directPredecessor(double *weights);
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void localMean(double *weights);
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//void differentialPredecessor(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
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void differentialPredecessor(double *weights);
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double *popNAN(double *xError, int xErrorLength); //return new array without NAN values
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double windowXMean(int _arraylength, int xCount);
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int main(int argc, char **argv) {
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double weights[WINDOWSIZE] = { 0.0 };
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// double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES];
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char fileName[50];
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int i, xLength;
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imagePixel_t *image;
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image = rdPPM("beaches.ppm");
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mkFileName(fileName, sizeof(fileName), TEST_VALUES);
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FILE* fp5 = fopen(fileName, "w");
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xLength = ppmColorChannel(fp5, image);
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printf("%d\n", xLength);
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FILE* fp6 = fopen(fileName, "r");
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colorSamples(fp6);
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srand((unsigned int)time(NULL));
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for (i = 0; i < WINDOWSIZE; i++) {
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//_x[i] += ((255.0 / M) * i); // Init test values
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// for (int k = 0; k < WINDOWSIZE; k++) {
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weights[i] = rndm(); // Init weights
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// }
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}
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mkFileName(fileName, sizeof(fileName), PURE_WEIGHTS);
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// save plain test_array before math magic happens
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FILE *fp0 = fopen(fileName, "w");
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for (i = 0; i < WINDOWSIZE; i++) {
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// for (k = 0; k < WINDOWSIZE; k++) {
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fprintf(fp0, "[%d]%lf\n", i, weights[i]);
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}
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// }
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fclose(fp0);
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// math magic
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/* for (i = 0; i < NUMBER_OF_SAMPLES; i++){
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for (k = 0; k < WINDOWSIZE; k++){
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local_weights[k][i] = weights[k][i];
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printf("ALT::%f\n", local_weights[k][i]);
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}
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}*/
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localMean(weights);
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// memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES);
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directPredecessor(weights);
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// memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES);
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differentialPredecessor(weights);
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mkSvgGraph(points);
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// save test_array after math magic happened
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// memset( fileName, '\0', sizeof(fileName) );
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/* mkFileName(fileName, sizeof(fileName), USED_WEIGHTS);
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FILE *fp1 = fopen(fileName, "w");
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for (i = 0; i < tracking; i++) {
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for (int k = 0; k < WINDOWSIZE; k++) {
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fprintf(fp1, "[%d][%d] %lf\n", k, i, w[k][i]);
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}
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}
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fclose(fp1);
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*/
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// getchar();
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printf("\nDONE!\n");
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}
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/*
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======================================================================================================
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localMean
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Variant (1/3), substract local mean.
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======================================================================================================
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*/
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void localMean(double *weights) {
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double local_weights[WINDOWSIZE];
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memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE);
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char fileName[50];
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double xError[2048]; // includes e(n)
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memset(xError, 0.0, NUMBER_OF_SAMPLES);// initialize xError-array with Zero
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int xCount = 0, i; // runtime var;
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mkFileName(fileName, sizeof(fileName), LOCAL_MEAN);
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FILE* fp4 = fopen(fileName, "w");
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fprintf(fp4, "\n=====================================LocalMean=====================================\n");
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double xMean = xSamples[0];
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double xSquared = 0.0;
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double xPredicted = 0.0;
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double xActual = 0.0;
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for (xCount = 1; xCount < NUMBER_OF_SAMPLES; xCount++) { // first value will not get predicted
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//double xPartArray[1000]; //includes all values at the size of runtime var
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//int _sourceIndex = (xCount > WINDOWSIZE) ? xCount - WINDOWSIZE : xCount;
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int _arrayLength = ( xCount > WINDOWSIZE ) ? WINDOWSIZE + 1 : xCount;
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//printf("xCount:%d, length:%d\n", xCount, _arrayLength);
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xMean = (xCount > 0) ? windowXMean(_arrayLength, xCount) : 0;
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// printf("WINDOWSIZE:%f\n", windowXMean(_arrayLength, xCount));
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xPredicted = 0.0;
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xActual = xSamples[xCount + 1];
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// weightedSum += _x[ xCount-1 ] * w[xCount][0];
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for (i = 1; i < _arrayLength; i++) { //get predicted value
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xPredicted += (local_weights[i] * (xSamples[xCount - i] - xMean));
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}
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xPredicted += xMean;
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xError[xCount] = xActual - xPredicted;
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printf("Pred: %f\t\tActual:%f\n", xPredicted, xActual);
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points[xCount].xVal[1] = xCount;
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points[xCount].yVal[1] = xPredicted;
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points[xCount].xVal[4] = xCount;
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points[xCount].yVal[4] = xError[xCount];
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xSquared = 0.0;
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for (i = 1; i < _arrayLength; i++) { //get xSquared
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xSquared += pow(xSamples[xCount - i] - xMean, 2);
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// printf("xSquared:%f\n", xSquared);
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}
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if (xSquared == 0.0) { // Otherwise returns Pred: -1.#IND00 in some occassions
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xSquared = 1.0;
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}
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//printf("%f\n", xSquared);
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for (i = 1; i < _arrayLength; i++) { //update weights
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local_weights[i] = local_weights[i] + learnrate * xError[xCount] * ((xSamples[xCount - i] - xMean) / xSquared);
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// printf("NEU::%lf\n", local_weights[i]);
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}
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fprintf(fp4, "{%d}.\txPredicted{%f}\txActual{%f}\txError{%f}\n", xCount, xPredicted, xActual, xError[xCount]);
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}
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int xErrorLength = sizeof(xError) / sizeof(xError[0]);
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printf("vor:%d", xErrorLength);
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popNAN(xError, xErrorLength);
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printf("nach:%d", xErrorLength);
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xErrorLength = sizeof(xError) / sizeof(xError[0]);
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double mean = sum_array(xError, xErrorLength) / xErrorLength;
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double deviation = 0.0;
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// Mean square
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for (i = 0; i < xErrorLength - 1; i++) {
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deviation += pow(xError[i] - mean, 2);
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}
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deviation /= xErrorLength;
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// write in file
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mkFileName(fileName, sizeof(fileName), RESULTS);
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FILE *fp2 = fopen(fileName, "w");
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fprintf(fp2, "quadr. Varianz(x_error): {%f}\nMittelwert:(x_error): {%f}\n\n", deviation, mean);
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fclose(fp2);
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fclose(fp4);
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// weightsLogger( local_weights, USED_WEIGHTS );
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//mkSvgGraph(points);
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}
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/*
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======================================================================================================
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directPredecessor
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Variant (2/3),
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substract direct predecessor
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======================================================================================================
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*/
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void directPredecessor(double *weights) {
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double local_weights[WINDOWSIZE];
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memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE );
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char fileName[512];
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double xError[2048];
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int xCount = 0, i;
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double xActual = 0.0;
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double xPredicted = 0.0;
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// File handling
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mkFileName(fileName, sizeof(fileName), DIRECT_PREDECESSOR);
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FILE *fp3 = fopen(fileName, "w");
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fprintf(fp3, "\n=====================================DirectPredecessor=====================================\n");
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for (xCount = 1; xCount < NUMBER_OF_SAMPLES; xCount++) { // first value will not get predicted
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//double xPartArray[1000]; //includes all values at the size of runtime var
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//int _sourceIndex = (xCount > WINDOWSIZE) ? xCount - WINDOWSIZE : xCount;
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int _arrayLength = (xCount > WINDOWSIZE) ? WINDOWSIZE + 1 : xCount;
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//printf("xCount:%d, length:%d\n", xCount, _arrayLength);
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// printf("WINDOWSIZE:%f\n", windowXMean(_arrayLength, xCount));
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xPredicted = 0.0;
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xActual = xSamples[xCount + 1];
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// weightedSum += _x[ xCount-1 ] * w[xCount][0];
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for (i = 1; i < _arrayLength; i++) {
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xPredicted += (local_weights[i] * (xSamples[xCount - 1] - xSamples[xCount - i - 1]));
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}
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xPredicted += xSamples[xCount - 1];
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xError[xCount] = xActual - xPredicted;
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fprintf(fp3, "{%d}.\txPredicted{%f}\txActual{%f}\txError{%f}\n", xCount, xPredicted, xActual, xError[xCount]);
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points[xCount].xVal[2] = xCount;
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points[xCount].yVal[2] = xPredicted;
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points[xCount].xVal[5] = xCount;
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points[xCount].yVal[5] = xError[xCount];
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double xSquared = 0.0;
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for (i = 1; i < _arrayLength; i++) {
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xSquared += pow(xSamples[xCount - 1] - xSamples[xCount - i - 1], 2); // substract direct predecessor
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}
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for (i = 1; i < _arrayLength; i++) {
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local_weights[i] = local_weights[i] + learnrate * xError[xCount] * ( (xSamples[xCount - 1] - xSamples[xCount - i - 1]) / xSquared);
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}
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}
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int xErrorLength = sizeof(xError) / sizeof(xError[0]);
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printf("vor:%d", xErrorLength);
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popNAN(xError, xErrorLength);
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printf("nach:%d", xErrorLength);
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xErrorLength = sizeof(xError) / sizeof(xError[0]);
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double mean = sum_array(xError, xErrorLength) / xErrorLength;
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double deviation = 0.0;
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for (i = 0; i < xErrorLength - 1; i++) {
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deviation += pow(xError[i] - mean, 2);
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}
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deviation /= xErrorLength;
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// mkSvgGraph(points);
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fprintf(fp3, "{%d}.\tLeast Mean Squared{%f}\tMean{%f}\n\n", xCount, deviation, mean);
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fclose(fp3);
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}
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/*
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======================================================================================================
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differentialPredecessor
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variant (3/3),
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differenital predecessor.
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======================================================================================================
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*/
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void differentialPredecessor(double *weights) {
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double local_weights[WINDOWSIZE];
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memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE );
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char fileName[512];
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double xError[2048];
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int xCount = 0, i;
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double xPredicted = 0.0;
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double xActual = 0.0;
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// File handling
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mkFileName(fileName, sizeof(fileName), DIFFERENTIAL_PREDECESSOR);
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FILE *fp6 = fopen(fileName, "w");
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fprintf(fp6, "\n=====================================DifferentialPredecessor=====================================\n");
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for (xCount = 1; xCount < NUMBER_OF_SAMPLES; xCount++) { // first value will not get predicted
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xActual = xSamples[xCount +1];
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xPredicted = 0.0;
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int _arrayLength = (xCount > WINDOWSIZE) ? WINDOWSIZE + 1 : xCount;
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for (i = 1; i < _arrayLength; i++) {
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xPredicted += (local_weights[i] * (xSamples[xCount - i] - xSamples[xCount - i - 1]));
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}
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xPredicted += xSamples[xCount - 1];
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xError[xCount] = xActual - xPredicted;
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fprintf(fp6, "{%d}.\txPredicted{%f}\txActual{%f}\txError{%f}\n", xCount, xPredicted, xSamples[xCount], xError[xCount]);
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points[xCount].xVal[3] = xCount;
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points[xCount].yVal[3] = xPredicted;
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points[xCount].xVal[6] = xCount;
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points[xCount].yVal[6] = xError[xCount];
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double xSquared = 0.0;
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for (i = 1; i < _arrayLength; i++) {
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xSquared += pow(xSamples[xCount - i] - xSamples[xCount - i - 1], 2); // substract direct predecessor
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}
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if (xSquared == 0.0 ){
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xSquared = 1.0;
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}
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for (i = 1; i < _arrayLength; i++) {
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local_weights[i] = local_weights[i] + learnrate * xError[xCount] * ((xSamples[xCount - i] - xSamples[xCount - i - 1]) / xSquared);
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printf("NEU::%lf\n", local_weights[i]);
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}
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}
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int xErrorLength = sizeof(xError) / sizeof(xError[0]);
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printf("vor:%d", xErrorLength);
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popNAN(xError, xErrorLength);
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printf("nach:%d", xErrorLength);
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xErrorLength = sizeof(xError) / sizeof(xError[0]);
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double mean = sum_array(xError, xErrorLength) / xErrorLength;
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double deviation = 0.0;
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for (i = 0; i < xErrorLength - 1; i++) {
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deviation += pow(xError[i] - mean, 2);
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}
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deviation /= xErrorLength;
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//mkSvgGraph(points);
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fprintf(fp6, "{%d}.\tLeast Mean Squared{%f}\tMean{%f}\n\n", xCount, deviation, mean);
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fclose(fp6);
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}
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/*
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======================================================================================================
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mkFileName
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Writes the current date plus the suffix with index suffixId
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into the given buffer. If the total length is longer than max_len,
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only max_len characters will be written.
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======================================================================================================
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*/
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char *mkFileName(char* buffer, size_t max_len, int suffixId) {
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const char * format_str = "%Y-%m-%d_%H_%M_%S";
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size_t date_len;
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const char * suffix = fileSuffix(suffixId);
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time_t now = time(NULL);
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strftime(buffer, max_len, format_str, localtime(&now));
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date_len = strlen(buffer);
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strncat(buffer, suffix, max_len - date_len);
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return buffer;
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}
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/*
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======================================================================================================
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fileSuffix
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Contains and returns every suffix for all existing filenames
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======================================================================================================
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*/
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char * fileSuffix(int id) {
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char * suffix[] = { "_weights_pure.txt", "_weights_used.txt", "_direct_predecessor.txt", "_ergebnisse.txt", "_localMean.txt","_testvalues.txt", "_differential_predecessor.txt" };
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return suffix[id];
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}
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/*
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======================================================================================================
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myLogger
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Logs x,y points to svg graph
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======================================================================================================
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*/
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/*
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void weightsLogger (double weights[WINDOWSIZE], int val ) {
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char fileName[512];
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int i;
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mkFileName(fileName, sizeof(fileName), val);
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FILE* fp = fopen(fileName, "wa");
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||||
for (i = 0; i < WINDOWSIZE; i++) {
|
||||
// for (int k = 0; k < WINDOWSIZE; k++) {
|
||||
fprintf(fp, "[%d]%lf\n", i, weights[i]);
|
||||
// }
|
||||
}
|
||||
fprintf(fp,"\n\n\n\n=====================NEXT=====================\n");
|
||||
fclose(fp);
|
||||
}
|
||||
*/
|
||||
|
||||
void bufferLogger(char *buffer, point_t points[]) {
|
||||
int i;
|
||||
char _buffer[512] = "";
|
||||
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES - 1; i++) { // xActual
|
||||
sprintf(_buffer, "L %f %f\n", points[i].xVal[0], points[i].yVal[0]);
|
||||
strcat(buffer, _buffer);
|
||||
}
|
||||
strcat(buffer, "\" fill=\"none\" id=\"svg_1\" stroke=\"black\" stroke-width=\"0.4px\"/>\n<path d=\"M0 0\n");
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES - 1; i++) { // xPrediceted from localMean
|
||||
sprintf(_buffer, "L %f %f\n", points[i].xVal[1], points[i].yVal[1]);
|
||||
strcat(buffer, _buffer);
|
||||
}
|
||||
strcat(buffer, "\" fill=\"none\" id=\"svg_2\" stroke=\"green\" stroke-width=\"0.4px\"/>\n<path d=\"M0 0\n");
|
||||
for (i = 0; i <= NUMBER_OF_SAMPLES - 1; i++) { //xPreddicted from directPredecessor
|
||||
sprintf(_buffer, "L %f %f\n", points[i].xVal[2], points[i].yVal[2]);
|
||||
strcat(buffer, _buffer);
|
||||
}
|
||||
strcat(buffer, "\" fill=\"none\" id=\"svg_3\" stroke=\"blue\" stroke-width=\"0.4px\"/>\n<path d=\"M0 0\n");
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES - 1; i++) { //xPredicted from diff Pred
|
||||
sprintf(_buffer, "L %f %f\n", points[i].xVal[3], points[i].xVal[3]);
|
||||
strcat(buffer, _buffer);
|
||||
}
|
||||
strcat(buffer, "\" fill=\"none\" id=\"svg_4\" stroke=\"blue\" stroke-width=\"0.4px\"/>\n");
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
sum_array
|
||||
|
||||
Sum of all elements in x within a defined length
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
double sum_array(double x[], int xlength) {
|
||||
int i = 0;
|
||||
double sum = 0.0;
|
||||
|
||||
if (xlength != 0) {
|
||||
for (i = 0; i < xlength; i++) {
|
||||
sum += x[i];
|
||||
}
|
||||
}
|
||||
return sum;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
popNanLength
|
||||
|
||||
returns length of new array without NAN values
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
double *popNAN(double *xError, int xErrorLength) {
|
||||
int i, counter;
|
||||
double *tmp = NULL;
|
||||
double *more_tmp = NULL;
|
||||
//tmp = realloc( noNAN, xErrorLength * sizeof(double) );
|
||||
|
||||
for ( i = 0; i < xErrorLength; i++ ) {
|
||||
counter ++;
|
||||
more_tmp = (double *) realloc ( tmp, counter*(sizeof(double) ));
|
||||
if ( !isnan(xError[i]) ) {
|
||||
tmp = more_tmp;
|
||||
tmp[counter - 1] = xError[i];
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
/* for (i = 0; i < xErrorLength; i++) {
|
||||
if (!isnan(xError[i])) {
|
||||
tmp[i] = xError[i];
|
||||
counter++;
|
||||
}
|
||||
}
|
||||
*/
|
||||
//realloc(noNAN, counter * sizeof(double));
|
||||
//int tmpLength = sizeof(noNAN) / sizeof(noNAN[0]);
|
||||
//memcpy(xError, tmp, tmpLength);
|
||||
//return xError;
|
||||
return tmp;
|
||||
|
||||
}
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
r2
|
||||
|
||||
returns a random double value between 0 and 1
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
double r2(void) {
|
||||
return((rand() % 10000) / 10000.0);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
rndm
|
||||
|
||||
fills a double variable with random value and returns it
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
double rndm(void) {
|
||||
double rndmval = r2();
|
||||
return rndmval;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
mkSvgGraph
|
||||
|
||||
parses template.svg and writes results in said template
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
void mkSvgGraph(point_t points[]) {
|
||||
FILE *input = fopen("graphResults_template.html", "r");
|
||||
FILE *target = fopen("graphResults.html", "w");
|
||||
char line[512];
|
||||
char firstGraph[15] = { "<path d=\"M0 0" };
|
||||
|
||||
if (input == NULL) {
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
char buffer[131072] = "";
|
||||
|
||||
memset(buffer, '\0', sizeof(buffer));
|
||||
while (!feof(input)) {
|
||||
fgets(line, 512, input);
|
||||
strncat(buffer, line, strlen(line));
|
||||
// printf("%s\n", line);
|
||||
if (strstr(line, firstGraph) != NULL) {
|
||||
bufferLogger(buffer, points);
|
||||
}
|
||||
|
||||
}
|
||||
fprintf(target, buffer);
|
||||
//puts(buffer);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
rdPPM
|
||||
|
||||
reads data from file of type PPM, stores colorchannels in a struct in the
|
||||
size of given picture
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
static imagePixel_t *rdPPM(char *fileName) {
|
||||
char buffer[16];
|
||||
imagePixel_t *image;
|
||||
int c, rgbColor;
|
||||
|
||||
FILE *fp = fopen(fileName, "rb");
|
||||
if (!fp) {
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (!fgets(buffer, sizeof(buffer), fp)) {
|
||||
perror(fileName);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (buffer[0] != 'P' || buffer[1] != '6') {
|
||||
fprintf(stderr, "No PPM file format\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
image = (imagePixel_t *)malloc(sizeof(imagePixel_t));
|
||||
if (!image) {
|
||||
fprintf(stderr, "malloc() failed");
|
||||
}
|
||||
c = getc(fp);
|
||||
while (c == '#') {
|
||||
while (getc(fp) != '\n');
|
||||
c = getc(fp);
|
||||
}
|
||||
ungetc(c, fp);
|
||||
if (fscanf(fp, "%d %d", &image->x, &image->y) != 2) {
|
||||
fprintf(stderr, "Invalid image size in %s\n", fileName);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (fscanf(fp, "%d", &rgbColor) != 1) {
|
||||
fprintf(stderr, "Invalid rgb component in %s\n", fileName);
|
||||
}
|
||||
if (rgbColor != RGB_COLOR) {
|
||||
fprintf(stderr, "Invalid image color range in %s\n", fileName);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
while (fgetc(fp) != '\n');
|
||||
image->data = (colorChannel_t *)malloc(image->x * image->y * sizeof(imagePixel_t));
|
||||
if (!image) {
|
||||
fprintf(stderr, "malloc() failed");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (fread(image->data, 3 * image->x, image->y, fp) != image->y) {
|
||||
fprintf(stderr, "Loading image failed");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
fclose(fp);
|
||||
return image;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
mkPpmFile
|
||||
|
||||
gets output from the result of rdPpmFile and writes a new PPM file. Best Case is a
|
||||
carbon copy of the source image. Build for debugging
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
void mkPpmFile(char *fileName, imagePixel_t *image) {
|
||||
FILE* fp = fopen(fileName, "wb");
|
||||
if (!fp) {
|
||||
fprintf(stderr, "Opening file failed.");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
fprintf(fp, "P6\n");
|
||||
fprintf(fp, "%d %d\n", image->x, image->y);
|
||||
fprintf(fp, "%d\n", RGB_COLOR);
|
||||
fwrite(image->data, 3 * image->x, image->y, fp);
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
ppmColorChannel
|
||||
|
||||
gets one of the rgb color channels and writes them to a file
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
int ppmColorChannel(FILE* fp, imagePixel_t *image) {
|
||||
// int length = 1000; // (image->x * image->y) / 3;
|
||||
int i = 0;
|
||||
|
||||
if (image) {
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES - 1; i++) {
|
||||
fprintf(fp, "%d\n", image->data[i].green);
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
return NUMBER_OF_SAMPLES;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
======================================================================================================
|
||||
|
||||
colorSamples
|
||||
|
||||
reads colorChannel values from file and stores them in xSamples as well as points datatype for
|
||||
creating the SVG graph
|
||||
|
||||
======================================================================================================
|
||||
*/
|
||||
void colorSamples(FILE* fp) {
|
||||
int i = 0;
|
||||
char buffer[NUMBER_OF_SAMPLES];
|
||||
|
||||
while (!feof(fp)) {
|
||||
if (fgets(buffer, NUMBER_OF_SAMPLES, fp) != NULL) {
|
||||
sscanf(buffer, "%lf", &xSamples[i]);
|
||||
//printf("%lf\n", xSamples[i] );
|
||||
points[i].yVal[0] = xSamples[i];
|
||||
points[i].xVal[0] = i;
|
||||
++i;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
double windowXMean(int _arraylength, int xCount) {
|
||||
double sum = 0.0;
|
||||
double *ptr;
|
||||
// printf("*window\t\t*base\t\txMean\n\n");
|
||||
for (ptr = &xSamples[xCount - _arraylength]; ptr != &xSamples[xCount]; ptr++) { //set ptr to beginning of window
|
||||
//window = xCount - _arraylength
|
||||
//base = window - _arraylength;
|
||||
//sum = 0.0;
|
||||
//for( count = 0; count < _arraylength; count++){
|
||||
sum += *ptr;
|
||||
// printf("%f\n", *base);
|
||||
|
||||
//}
|
||||
}
|
||||
//printf("\n%lf\t%lf\t%lf\n", *ptr, *ptr2, (sum/(double)WINDOW));
|
||||
return sum / (double)_arraylength;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
#include <string.h>
|
||||
#include <float.h> // DBL_MAX
|
||||
|
||||
#define NUMBER_OF_SAMPLES 1000
|
||||
#define NUMBER_OF_SAMPLES 500
|
||||
#define WINDOWSIZE 5
|
||||
#define tracking 40 //Count of weights
|
||||
#define learnrate 0.8
|
||||
|
|
@ -33,8 +33,6 @@ typedef SSIZE_T ssize_t;
|
|||
//double x[] = { 0.0 };
|
||||
double xSamples[NUMBER_OF_SAMPLES] = { 0.0 };
|
||||
|
||||
|
||||
|
||||
/* *svg graph building* */
|
||||
typedef struct {
|
||||
double xVal[7];
|
||||
|
|
@ -63,30 +61,30 @@ char * mkFileName(char* buffer, size_t max_len, int suffixId);
|
|||
char *fileSuffix(int id);
|
||||
void myLogger(FILE* fp, point_t points[]);
|
||||
void mkSvgGraph(point_t points[]);
|
||||
|
||||
//void weightsLogger(double *weights, int var);
|
||||
/* *rand seed* */
|
||||
double r2(void);
|
||||
double rndm(void);
|
||||
|
||||
/* *math* */
|
||||
double sum_array(double x[], int length);
|
||||
void directPredecessor(double localweights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
|
||||
void localMean(double localweights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
|
||||
void differentialPredecessor(double localweights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
|
||||
double *popNAN(double *xError, int xErrorLength); //return new array without NAN values
|
||||
void directPredecessor(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
|
||||
void localMean(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
|
||||
void differentialPredecessor(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]);
|
||||
//void differentialPredecessor(double *weights);
|
||||
double *popNAN(double *xError); //return new array without NAN values
|
||||
double windowXMean(int _arraylength, int xCount);
|
||||
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
double w[WINDOWSIZE][NUMBER_OF_SAMPLES] = { { 0.0 },{ 0.0 } };
|
||||
double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES];
|
||||
//int main(int argc, char **argv) {
|
||||
int main( void ) {
|
||||
double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]; // = { { 0.0 }, {0.0} };
|
||||
// double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES];
|
||||
char fileName[50];
|
||||
int i,k, xLength;
|
||||
int *colorChannel;
|
||||
imagePixel_t *image;
|
||||
|
||||
|
||||
image = rdPPM("cow.ppm");
|
||||
image = rdPPM("beaches.ppm");
|
||||
mkFileName(fileName, sizeof(fileName), TEST_VALUES);
|
||||
FILE* fp5 = fopen(fileName, "w");
|
||||
xLength = ppmColorChannel(fp5, image);
|
||||
|
|
@ -100,45 +98,37 @@ int main(int argc, char **argv) {
|
|||
for (i = 0; i < NUMBER_OF_SAMPLES; i++) {
|
||||
//_x[i] += ((255.0 / M) * i); // Init test values
|
||||
for (int k = 0; k < WINDOWSIZE; k++) {
|
||||
w[k][i] = rndm(); // Init weights
|
||||
weights[k][i] = rndm(); // Init weights
|
||||
}
|
||||
}
|
||||
|
||||
mkFileName(fileName, sizeof(fileName), PURE_WEIGHTS);
|
||||
// save plain test_array before math magic happens
|
||||
FILE *fp0 = fopen(fileName, "w");
|
||||
for (i = 0; i <= tracking; i++) {
|
||||
for (i = 0; i < tracking; i++) {
|
||||
for (k = 0; k < WINDOWSIZE; k++) {
|
||||
fprintf(fp0, "[%d][%d] %lf\n", k, i, w[k][i]);
|
||||
fprintf(fp0, "[%d][%d]%lf\n", k, i, weights[k][i]);
|
||||
}
|
||||
}
|
||||
fclose(fp0);
|
||||
|
||||
|
||||
// math magic
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES; i++){
|
||||
/* for (i = 0; i < NUMBER_OF_SAMPLES; i++){
|
||||
for (k = 0; k < WINDOWSIZE; k++){
|
||||
local_weights[k][i] = w[k][i];
|
||||
local_weights[k][i] = weights[k][i];
|
||||
printf("ALT::%f\n", local_weights[k][i]);
|
||||
}
|
||||
}
|
||||
localMean(local_weights);
|
||||
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES; i++){
|
||||
for (k = 0; k < WINDOWSIZE; k++){
|
||||
local_weights[k][i] = w[k][i];
|
||||
}
|
||||
}
|
||||
//directPredecessor(local_weights);
|
||||
for (i = 0; i < NUMBER_OF_SAMPLES; i++){
|
||||
for (k = 0; k < WINDOWSIZE; k++){
|
||||
local_weights[k][i] = w[k][i];
|
||||
}
|
||||
}
|
||||
//differentialPredecessor(local_weights);
|
||||
}*/
|
||||
localMean(weights);
|
||||
// memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES);
|
||||
// directPredecessor(weights);
|
||||
// memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES);
|
||||
// differentialPredecessor(weights);
|
||||
mkSvgGraph(points);
|
||||
// save test_array after math magic happened
|
||||
// memset( fileName, '\0', sizeof(fileName) );
|
||||
mkFileName(fileName, sizeof(fileName), USED_WEIGHTS);
|
||||
/* mkFileName(fileName, sizeof(fileName), USED_WEIGHTS);
|
||||
FILE *fp1 = fopen(fileName, "w");
|
||||
for (i = 0; i < tracking; i++) {
|
||||
for (int k = 0; k < WINDOWSIZE; k++) {
|
||||
|
|
@ -147,10 +137,9 @@ int main(int argc, char **argv) {
|
|||
|
||||
}
|
||||
fclose(fp1);
|
||||
|
||||
*/
|
||||
// getchar();
|
||||
printf("DONE!");
|
||||
|
||||
printf("\nDONE!\n");
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -164,8 +153,11 @@ Variant (1/3), substract local mean.
|
|||
======================================================================================================
|
||||
*/
|
||||
|
||||
void localMean(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
||||
|
||||
void localMean(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
||||
//double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES];
|
||||
double (*local_weights)[WINDOWSIZE] = malloc(sizeof(double) * (WINDOWSIZE+1) * (NUMBER_OF_SAMPLES+1));
|
||||
// double *local_weights[WINDOWSIZE];
|
||||
memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES);
|
||||
char fileName[50];
|
||||
double xError[2048]; // includes e(n)
|
||||
memset(xError, 0.0, NUMBER_OF_SAMPLES);// initialize xError-array with Zero
|
||||
|
|
@ -175,13 +167,10 @@ void localMean(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
|||
fprintf(fp4, "\n=====================================LocalMean=====================================\n");
|
||||
|
||||
double xMean = xSamples[0];
|
||||
double weightedSum = 0.0;
|
||||
double filterOutput = 0.0;
|
||||
double xSquared = 0.0;
|
||||
double xPredicted = 0.0;
|
||||
double xActual = 0.0;
|
||||
|
||||
|
||||
for (xCount = 1; xCount < NUMBER_OF_SAMPLES; xCount++) { // first value will not get predicted
|
||||
//double xPartArray[1000]; //includes all values at the size of runtime var
|
||||
//int _sourceIndex = (xCount > WINDOWSIZE) ? xCount - WINDOWSIZE : xCount;
|
||||
|
|
@ -199,7 +188,7 @@ void localMean(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
|||
}
|
||||
xPredicted += xMean;
|
||||
xError[xCount] = xActual - xPredicted;
|
||||
printf("Pred: %f\t\tActual:%f\n", xPredicted, xActual);
|
||||
// printf("Pred: %f\t\tActual:%f\n", xPredicted, xActual);
|
||||
points[xCount].xVal[1] = xCount;
|
||||
points[xCount].yVal[1] = xPredicted;
|
||||
points[xCount].xVal[4] = xCount;
|
||||
|
|
@ -207,31 +196,32 @@ void localMean(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
|||
|
||||
xSquared = 0.0;
|
||||
for (i = 1; i < _arrayLength; i++) { //get xSquared
|
||||
//xSquared += pow(xSamples[xCount - i], 2);
|
||||
xSquared += pow(xSamples[xCount - i] - xMean, 2);
|
||||
printf("xSquared:%f\n", xSquared);
|
||||
// printf("xSquared:%f\n", xSquared);
|
||||
}
|
||||
if (xSquared == 0.0) { // returns Pred: -1.#IND00
|
||||
if (xSquared == 0.0) { // Otherwise returns Pred: -1.#IND00 in some occassions
|
||||
xSquared = 1.0;
|
||||
}
|
||||
//printf("%f\n", xSquared);
|
||||
for (i = 1; i < _arrayLength; i++) { //update weights
|
||||
local_weights[i][xCount+1] = local_weights[i][xCount] + learnrate * xError[xCount] * ((xSamples[xCount - i] - xMean) / xSquared);
|
||||
// printf("NEU::%lf\n", local_weights[i][xCount]);
|
||||
}
|
||||
|
||||
fprintf(fp4, "{%d}.\txPredicted{%f}\txActual{%f}\txError{%f}\n", xCount, xPredicted, xActual, xError[xCount]);
|
||||
|
||||
}
|
||||
/* int xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
printf("vor:%d", xErrorLength);
|
||||
popNAN(xError, xErrorLength);
|
||||
printf("nach:%d", xErrorLength);
|
||||
xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
// int xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
// printf("vor:%d", xErrorLength);
|
||||
popNAN(xError); // delete NAN values from xError[]
|
||||
// printf("%lf", xError[499]);
|
||||
double xErrorLength = xError[0]; // Watch popNAN()!
|
||||
printf("Xerrorl:%lf", xErrorLength);
|
||||
double mean = sum_array(xError, xErrorLength) / xErrorLength;
|
||||
double deviation = 0.0;
|
||||
|
||||
// Mean square
|
||||
for (i = 0; i < xErrorLength - 1; i++) {
|
||||
for (i = 1; i < xErrorLength; i++) {
|
||||
deviation += pow(xError[i] - mean, 2);
|
||||
}
|
||||
deviation /= xErrorLength;
|
||||
|
|
@ -241,9 +231,12 @@ void localMean(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
|||
FILE *fp2 = fopen(fileName, "w");
|
||||
fprintf(fp2, "quadr. Varianz(x_error): {%f}\nMittelwert:(x_error): {%f}\n\n", deviation, mean);
|
||||
fclose(fp2);
|
||||
free(local_weights);
|
||||
fclose(fp4);
|
||||
*/
|
||||
//mkSvgGraph(points);
|
||||
|
||||
// weightsLogger( local_weights, USED_WEIGHTS );
|
||||
mkSvgGraph(points);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -257,12 +250,16 @@ substract direct predecessor
|
|||
======================================================================================================
|
||||
*/
|
||||
|
||||
void directPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
||||
void directPredecessor(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
||||
double (*local_weights)[WINDOWSIZE] = malloc(sizeof(double) * (WINDOWSIZE+1) * (NUMBER_OF_SAMPLES+1));
|
||||
|
||||
// double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES];
|
||||
memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES );
|
||||
char fileName[512];
|
||||
double xError[2048];
|
||||
int xCount = 0, i;
|
||||
double xActual = 0.0;
|
||||
int xPredicted = 0.0;
|
||||
double xPredicted = 0.0;
|
||||
// File handling
|
||||
mkFileName(fileName, sizeof(fileName), DIRECT_PREDECESSOR);
|
||||
FILE *fp3 = fopen(fileName, "w");
|
||||
|
|
@ -300,10 +297,10 @@ void directPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
|||
local_weights[i][xCount+1] = local_weights[i][xCount] + learnrate * xError[xCount] * ( (xSamples[xCount - 1] - xSamples[xCount - i - 1]) / xSquared);
|
||||
}
|
||||
}
|
||||
/*
|
||||
|
||||
int xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
printf("vor:%d", xErrorLength);
|
||||
popNAN(xError, xErrorLength);
|
||||
popNAN(xError);
|
||||
printf("nach:%d", xErrorLength);
|
||||
xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
double mean = sum_array(xError, xErrorLength) / xErrorLength;
|
||||
|
|
@ -316,7 +313,7 @@ void directPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
|||
|
||||
// mkSvgGraph(points);
|
||||
fprintf(fp3, "{%d}.\tLeast Mean Squared{%f}\tMean{%f}\n\n", xCount, deviation, mean);
|
||||
*/
|
||||
|
||||
fclose(fp3);
|
||||
}
|
||||
|
||||
|
|
@ -331,8 +328,11 @@ differenital predecessor.
|
|||
|
||||
======================================================================================================
|
||||
*/
|
||||
void differentialPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
||||
void differentialPredecessor(double weights[WINDOWSIZE][NUMBER_OF_SAMPLES]) {
|
||||
// double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES];
|
||||
double (*local_weights)[WINDOWSIZE] = malloc(sizeof(double) * (WINDOWSIZE+1) * (NUMBER_OF_SAMPLES+1));
|
||||
|
||||
memcpy(local_weights, weights, sizeof(double) * WINDOWSIZE * NUMBER_OF_SAMPLES );
|
||||
char fileName[512];
|
||||
double xError[2048];
|
||||
int xCount = 0, i;
|
||||
|
|
@ -347,7 +347,8 @@ void differentialPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]
|
|||
for (xCount = 1; xCount < NUMBER_OF_SAMPLES; xCount++) { // first value will not get predicted
|
||||
|
||||
int _arrayLength = (xCount > WINDOWSIZE) ? WINDOWSIZE + 1 : xCount;
|
||||
double xPredicted = 0.0;
|
||||
xPredicted = 0.0;
|
||||
xActual = xSamples[xCount + 1];
|
||||
|
||||
for (i = 1; i < _arrayLength; i++) {
|
||||
xPredicted += (local_weights[i][xCount] * (xSamples[xCount - i] - xSamples[xCount - i - 1]));
|
||||
|
|
@ -369,10 +370,10 @@ void differentialPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]
|
|||
local_weights[i][xCount+1] = local_weights[i][xCount] + learnrate * xError[xCount] * ((xSamples[xCount - i] - xSamples[xCount - i - 1]) / xSquared);
|
||||
}
|
||||
}
|
||||
/*
|
||||
|
||||
int xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
printf("vor:%d", xErrorLength);
|
||||
popNAN(xError, xErrorLength);
|
||||
popNAN(xError);
|
||||
printf("nach:%d", xErrorLength);
|
||||
xErrorLength = sizeof(xError) / sizeof(xError[0]);
|
||||
double mean = sum_array(xError, xErrorLength) / xErrorLength;
|
||||
|
|
@ -385,7 +386,7 @@ void differentialPredecessor(double local_weights[WINDOWSIZE][NUMBER_OF_SAMPLES]
|
|||
|
||||
//mkSvgGraph(points);
|
||||
fprintf(fp6, "{%d}.\tLeast Mean Squared{%f}\tMean{%f}\n\n", xCount, deviation, mean);
|
||||
*/
|
||||
|
||||
fclose(fp6);
|
||||
|
||||
|
||||
|
|
@ -443,6 +444,22 @@ Logs x,y points to svg graph
|
|||
|
||||
======================================================================================================
|
||||
*/
|
||||
|
||||
void weightsLogger (double weights[WINDOWSIZE], int val ) {
|
||||
char fileName[512];
|
||||
int i;
|
||||
mkFileName(fileName, sizeof(fileName), val);
|
||||
FILE* fp = fopen(fileName, "wa");
|
||||
for (i = 0; i < WINDOWSIZE; i++) {
|
||||
// for (int k = 0; k < WINDOWSIZE; k++) {
|
||||
fprintf(fp, "[%d]%lf\n", i, weights[i]);
|
||||
// }
|
||||
}
|
||||
fprintf(fp,"\n\n\n\n=====================NEXT=====================\n");
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
|
||||
void bufferLogger(char *buffer, point_t points[]) {
|
||||
int i;
|
||||
char _buffer[512] = "";
|
||||
|
|
@ -503,21 +520,32 @@ returns length of new array without NAN values
|
|||
======================================================================================================
|
||||
*/
|
||||
|
||||
double *popNAN(double *xError, int xErrorLength) {
|
||||
int i, counter;
|
||||
double noNAN[10];
|
||||
realloc(noNAN, xErrorLength);
|
||||
double *popNAN(double *xError) {
|
||||
int i, counter = 1;
|
||||
double tmpLength = 0.0;
|
||||
double *tmp = NULL;
|
||||
double *more_tmp = NULL;
|
||||
|
||||
for (i = 0; i < xErrorLength; i++) {
|
||||
if (!isnan(xError[i])) {
|
||||
noNAN[i] = xError[i];
|
||||
// printf("LENGTH: %d", xErrorLength);
|
||||
|
||||
for ( i = 0; i < NUMBER_OF_SAMPLES; i++ ) {
|
||||
counter ++;
|
||||
more_tmp = (double *) realloc ( tmp, counter*(sizeof(double) ));
|
||||
if ( !isnan(xError[i]) ) {
|
||||
tmp = more_tmp;
|
||||
tmp[counter - 1] = xError[i];
|
||||
printf("xERROR:%lf\n", tmp[counter - 1]);
|
||||
tmpLength++;
|
||||
}
|
||||
}
|
||||
realloc(noNAN, counter * sizeof(double));
|
||||
int noNANLength = sizeof(noNAN) / sizeof(noNAN[0]);
|
||||
memcpy(xError, noNAN, noNANLength);
|
||||
return xError;
|
||||
counter += 1;
|
||||
more_tmp = (double *) realloc ( tmp, counter * sizeof(double) );
|
||||
tmp = more_tmp;
|
||||
tmp = &tmpLength; // Length of array has to be stored in tmp[0],
|
||||
// Cause length is needed later on in the math functions.
|
||||
// xError counting has to begin with 1 in the other functions !
|
||||
printf("tmpLength in tmp:%lf, %lf\n", tmp[counter-2], *tmp);
|
||||
return tmp;
|
||||
|
||||
}
|
||||
/*
|
||||
|
|
@ -562,8 +590,8 @@ parses template.svg and writes results in said template
|
|||
*/
|
||||
|
||||
void mkSvgGraph(point_t points[]) {
|
||||
FILE *input = fopen("GraphResults_template.html", "r");
|
||||
FILE *target = fopen("GraphResults.html", "w");
|
||||
FILE *input = fopen("graphResults_template.html", "r");
|
||||
FILE *target = fopen("graphResults.html", "w");
|
||||
char line[512];
|
||||
char firstGraph[15] = { "<path d=\"M0 0" };
|
||||
|
||||
|
|
@ -713,8 +741,6 @@ creating the SVG graph
|
|||
*/
|
||||
void colorSamples(FILE* fp) {
|
||||
int i = 0;
|
||||
int d, out;
|
||||
double f;
|
||||
char buffer[NUMBER_OF_SAMPLES];
|
||||
|
||||
while (!feof(fp)) {
|
||||
|
|
@ -730,7 +756,6 @@ void colorSamples(FILE* fp) {
|
|||
}
|
||||
|
||||
double windowXMean(int _arraylength, int xCount) {
|
||||
int count;
|
||||
double sum = 0.0;
|
||||
double *ptr;
|
||||
// printf("*window\t\t*base\t\txMean\n\n");
|
||||
|
|
@ -747,3 +772,5 @@ double windowXMean(int _arraylength, int xCount) {
|
|||
//printf("\n%lf\t%lf\t%lf\n", *ptr, *ptr2, (sum/(double)WINDOW));
|
||||
return sum / (double)_arraylength;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue