NEW FEATURES AND NEW FUNCTIONS

1 files changed, 61 insertions, 0 deletions

diff --git a/src/c/statisticsFunctions/wcenter/swcentercola.c b/src/c/statisticsFunctions/wcenter/swcentercola.c
new file mode 100644
index 00000000..6fafe9f9
--- /dev/null
+++ b/src/c/statisticsFunctions/wcenter/swcentercola.c
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "matrixMultiplication.h"
+#include "wcenter.h"
+
+void swcentercola (float* inp, int row, int col, float* out)
+{
+
+    float sum[row], xbar[row];
+    for(int i = 0; i < row; i++)
+	sum[i] = 0;
+
+
+    for(int i = 0; i < row; i++)
+    {
+	for(int j = 0; j < col; j++)
+	{
+	    sum[i] +=  inp[i + j*row];
+	}
+    }
+
+    for(int i = 0; i < row; i++)
+	xbar[i] = sum[i]/col;
+
+    float one[col];			// Creating a matrix of ones
+    sonesa(one,1,col);
+
+
+    float prod[row*col];
+    smulma(xbar, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = inp[i] - prod[i];
+
+    for(int i = 0; i < row; i++)
+	sum[i] = 0;
+
+    for(int i = 0; i < row; i++)
+    {
+	for(int j = 0; j < col; j++)
+	{
+	    sum[i] +=  out[i + j*row] * out[i + j*row];
+	}
+    }
+
+    float sigma[row];
+    for(int i = 0; i < row; i++)
+	sigma[i] = sqrt(sum[i]/(col-1));
+
+    for(int i = 0; i < row*col; i++)
+	prod[i] = 0;
+
+    smulma(sigma, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i < row*col; i++)
+	out[i] = out[i] / prod[i];
+    
+}