added program to git moments of big data files

1 files changed, 147 insertions, 0 deletions

diff --git a/src/big_anal_process.c b/src/big_anal_process.c
new file mode 100644
index 0000000..8345785
--- /dev/null
+++ b/src/big_anal_process.c
@@ -0,0 +1,147 @@
+
+#include "fracture.h"
+#include <gsl/gsl_sf_erf.h>
+#include <gsl/gsl_sf_laguerre.h>
+#include <gsl/gsl_matrix.h>
+#include <gsl/gsl_vector.h>
+#include <gsl/gsl_blas.h>
+#include <sys/stat.h>
+
+void get_mean(uint_t len, double *data, double result[2]) {
+	double total = 0;
+
+	for (uint_t i = 0; i < len; i++) {
+		total += data[i];
+	}
+
+	double mean = total / len;
+	double total_sq_diff = 0;
+
+	for (uint_t i = 0; i < len; i++) {
+		total_sq_diff += pow(mean - data[i], 2);
+	}
+
+	double mean_err = sqrt(total_sq_diff) / len;
+
+	result[0] = mean;
+	result[1] = mean_err;
+}
+
+void get_mom(uint_t len, uint_t n, double *data, double mean[2], double result[2]) {
+	double total_n_diff = 0;
+	double total_n2_diff = 0;
+
+	for (uint_t i = 0; i < len; i++) {
+		total_n_diff += pow(fabs(mean[0] - data[i]), n);
+		total_n2_diff += pow(fabs(mean[0] - data[i]), 2 * n);
+	}
+
+	double mom = total_n_diff / len;
+	double mom_err = sqrt(total_n2_diff) / len;
+
+	result[0] = mom;
+	result[1] = mom_err;
+}
+
+int main(int argc, char *argv[]) {
+	uint_t nc = argc - 1;
+	uint_t *Ls_c = (uint_t *)malloc(nc * sizeof(uint_t));
+	double *betas_c = (double *)malloc(nc * sizeof(double));
+	double *vals_c1 = (double *)malloc(nc * sizeof(double));
+	double *errors_c1 = (double *)malloc(nc * sizeof(double));
+	double *vals_c2 = (double *)malloc(nc * sizeof(double));
+	double *errors_c2 = (double *)malloc(nc * sizeof(double));
+	double *vals_c3 = (double *)malloc(nc * sizeof(double));
+	double *errors_c3 = (double *)malloc(nc * sizeof(double));
+
+	char *out_filename = (char *)malloc(100 * sizeof(char));
+	uint_t out_filename_len = 0;
+
+	for (uint_t i = 0; i < nc; i++) {
+		char *fn = argv[1 + i];
+		char *buff = (char *)malloc(20 * sizeof(char));
+		uint_t pos = 0; uint_t c = 0;
+		while (c < 5) {
+			if (fn[pos] == '_') {
+				c++;
+			}
+			if (i == 0) {
+				out_filename[pos] = fn[pos];
+				out_filename_len++;
+			}
+			pos++;
+		}
+		c = 0;
+		while (fn[pos] != '_') {
+			buff[c] = fn[pos];
+			pos++;
+			c++;
+		}
+		buff[c] = '\0';
+		Ls_c[i] = atoi(buff);
+		c = 0;
+		pos++;
+		while (fn[pos] != '_') {
+			buff[c] = fn[pos];
+			pos++;
+			c++;
+		}
+		buff[c] = '\0';
+		betas_c[i] = atof(buff);
+		free(buff);
+
+		struct stat info;
+		stat(fn, &info);
+		uint_t num_bytes = info.st_size;
+		uint_t dist_len = (num_bytes * sizeof(char)) / sizeof(double);
+
+		double *dist = malloc(dist_len * sizeof(double));
+		FILE *dist_file = fopen(fn, "rb");
+		fread(dist, sizeof(double), dist_len, dist_file);
+		fclose(dist_file);
+		{
+			double mom1[2];
+			get_mean(dist_len, dist, mom1);
+			vals_c1[i] = mom1[0];
+			errors_c1[i] = mom1[1];
+
+			double mom2[2];
+			get_mom(dist_len, 2, dist, mom1, mom2);
+			vals_c2[i] = mom2[0];
+			errors_c2[i] = mom2[1];
+
+			double mom3[2];
+			get_mom(dist_len, 3, dist, mom1, mom3);
+			vals_c3[i] = mom3[0];
+			errors_c3[i] = mom3[1];
+		}
+		free(dist);
+	}
+
+	out_filename[out_filename_len-1] = '.';
+	out_filename[out_filename_len] = 't';
+	out_filename[out_filename_len+1] = 'x';
+	out_filename[out_filename_len+2] = 't';
+	out_filename[out_filename_len+3] = '\0';
+
+	FILE *out_file = fopen(out_filename, "w");
+
+	for (uint_t i = 0; i < nc; i++) {
+		fprintf(out_file, "%u %g %g %g %g %g %g %g\n", Ls_c[i], betas_c[i], vals_c1[i], errors_c1[i], vals_c2[i], errors_c2[i], vals_c3[i], errors_c3[i]);
+	}
+
+	fclose(out_file);
+
+
+	free(Ls_c);
+	free(betas_c);
+	free(vals_c1);
+	free(errors_c1);
+	free(vals_c2);
+	free(errors_c2);
+	free(vals_c3);
+	free(errors_c3);
+
+	return 0;
+}
+