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76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
#include "genlib.h"
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#include "geostat.h"
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#include "log.h"
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#include <math.h>
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#include <time.h>
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/*selection of model covariance*/
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double cov_value(struct vario_mod variogram, double di, double dj, double dk) {
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clock_t t = clock();
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log_info("RESULT = in progress, di = %f, dj = %f, dk = %f", di, dj, dk);
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double hx, hy, hz, h;
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double cov;
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int k;
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cov = 0.;
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for (k = 0; k < variogram.Nvario; k++) {
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hx = di * variogram.ap[9 * k] + dj * variogram.ap[9 * k + 1] + dk * variogram.ap[9 * k + 2];
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hy = di * variogram.ap[9 * k + 3] + dj * variogram.ap[9 * k + 4] + dk * variogram.ap[9 * k + 5];
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hz = di * variogram.ap[9 * k + 6] + dj * variogram.ap[9 * k + 7] + dk * variogram.ap[9 * k + 8];
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h = sqrt(hx * hx + hy * hy + hz * hz);
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switch (variogram.vario[k]) {
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case 1:
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cov += variogram.var[k] * exponential(h);
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break;
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case 2:
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cov += variogram.var[k] * gaussian(h);
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break;
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case 3:
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cov += variogram.var[k] * spherical(h);
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break;
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case 4:
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cov += variogram.var[k] * cardsin(h);
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break;
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case 5:
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cov += variogram.var[k] * stable(h, variogram.alpha[k]);
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break;
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case 6:
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cov += variogram.var[k] * gammf(h, variogram.alpha[k]);
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break;
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case 7:
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cov += variogram.var[k] * cubic(h);
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break;
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case 8:
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cov += variogram.var[k] * nugget(h);
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break;
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case 9:
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cov += variogram.var[k] * power(h, variogram.alpha[k]);
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break;
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}
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}
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t = clock() - t;
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double time_taken = ((double)t)/CLOCKS_PER_SEC; // calculate the elapsed time
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double* total_ram = malloc(sizeof(double));
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getTotalVirtualMem(total_ram);
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double* used_ram = malloc(sizeof(double));
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getVirtualMemUsed(used_ram);
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log_info("TOTAL VIRTUAL MEM = %5.1f MB, USED VIRTUAL MEM = %5.1f MB, USED VIRTUAL MEM BY CURRENT PROCESS = %d MB",
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*total_ram, *used_ram, getVirtualMemUsedByCurrentProcess());
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free(total_ram);
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free(used_ram);
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log_info("RESULT = success, hx = %f, hy = %f, hz = %f, h = %f, cov = %f, ELAPSED = %f seconds", hx, hy, hz, h, cov, time_taken);
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return cov;
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}
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