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generate2.c
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generate2.c
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#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <math.h>
#define N 100
int main() {
srand(time(0));
FILE *fp1;
fp1 = fopen("clusters.txt", "w");
if (fp1 == NULL) {
printf("Null file pointer\n");
exit(0);
}
for (int i = 0; i < N; i++) {
double x1 = ((double)rand())/(double)(RAND_MAX) - 0.5;
double x2 = ((double)rand())/(double)(RAND_MAX) - 0.5;
double circle = pow(x1, 2.0) + pow(x2, 2.0);
if (circle <= pow(0.3, 2.0)) {
fprintf(fp1, "%.6f,%.6f\n", x1, x2);
}
}
for (int i = 0; i < N; i++) {
double x1 = ((double)rand())/(double)(RAND_MAX/0.6) - 1.1;
double x2 = ((double)rand())/(double)(RAND_MAX/0.6) + 0.5;
fprintf(fp1, "%.6f,%.6f\n", x1, x2);
}
for (int i = 0; i < N; i++) {
double x1 = ((double)rand())/(double)(RAND_MAX/0.6) - 1.1;
double x2 = ((double)rand())/(double)(RAND_MAX/0.6) - 1.1;
fprintf(fp1, "%.6f,%.6f\n", x1, x2);
}
for (int i = 0; i < N; i++) {
double x1 = ((double)rand())/(double)(RAND_MAX/0.6) + 0.5;
double x2 = ((double)rand())/(double)(RAND_MAX/0.6) - 1.1;
fprintf(fp1, "%.6f,%.6f\n", x1, x2);
}
for (int i = 0; i < N; i++) {
double x1 = ((double)rand())/(double)(RAND_MAX/0.6) + 0.5;
double x2 = ((double)rand())/(double)(RAND_MAX/0.6) + 0.5;
fprintf(fp1, "%.6f,%.6f\n", x1, x2);
}
for (int i = 0; i < N; i++) {
double x1 = ((double)rand())/(double)(RAND_MAX/2) - 1.0;
double x2 = ((double)rand())/(double)(RAND_MAX/2) - 1.0;
fprintf(fp1, "%.6f,%.6f\n", x1, x2);
}
}