diff options
Diffstat (limited to 'src/c/statisticsFunctions/wcenter/swcenterrowa.c')
-rw-r--r-- | src/c/statisticsFunctions/wcenter/swcenterrowa.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/c/statisticsFunctions/wcenter/swcenterrowa.c b/src/c/statisticsFunctions/wcenter/swcenterrowa.c new file mode 100644 index 0000000..ce1df2e --- /dev/null +++ b/src/c/statisticsFunctions/wcenter/swcenterrowa.c @@ -0,0 +1,68 @@ +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <ones.h> +#include "subtraction.h" +#include "matrixMultiplication.h" +#include "wcenter.h" + +void swcenterrowa (float* inp, int row, int col, float* out) +{ + + float sum[col], xbar[col]; + for(int i = 0; i < col; i++) + sum[i] = 0; + + + for(int i = 0; i < col; i++) + { + for(int j = 0; j < row; j++) + { + sum[i] += inp[j + i*row]; + } + } + + + + for(int i = 0; i < col; i++) + xbar[i] = sum[i]/row; + + float one[row]; // Creating a matrix of ones + sonesa(one,row,1); + + float prod[row*col]; + smulma(one, row, 1, xbar, 1, col, prod); + + + + for(int i = 0; i< row*col; i++) + out[i] = inp[i] - prod[i]; + + + for(int i = 0; i < col; i++) + sum[i] = 0; + + for(int i = 0; i < col; i++) + { + for(int j = 0; j < row; j++) + { + sum[i] += out[j + i*row] * out[j + i*row]; + } + } + + + + float sigma[col]; + for(int i = 0; i < col; i++) + sigma[i] = sqrt(sum[i]/(row-1)); + + + for(int i = 0; i < row*col; i++) + prod[i] = 0; + + smulma(one, row, 1, sigma, 1, col, prod); + + for(int i = 0; i < row*col; i++) + out[i] = out[i] / prod[i]; + +} |