12 lines
284 B
C
12 lines
284 B
C
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#include <R.h>
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#include <Rinternals.h>
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void c_sum_matrix(double *matrix, int *nrow, int *ncol, double *result) {
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int i, j;
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*result = 0.0;
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for (i = 0; i < *nrow; i++) {
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for (j = 0; j < *ncol; j++) {
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*result += matrix[i * (*ncol) + j];
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}
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}
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}
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