Added Center, Wcenter and Correl

30 files changed, 1350 insertions, 0 deletions

diff --git a/2.3-1/src/c/statisticsFunctions/center/dcentera.c b/2.3-1/src/c/statisticsFunctions/center/dcentera.c
new file mode 100644
index 00000000..87480386
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/dcentera.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "multiplication.h"
+#include "center.h"
+
+void dcentera (double* inp, int row, int col, double* out)
+{
+    double sum = 0, xbar = 0, sigma = 0;
+    for(int i = 0; i < row*col; i++)		// Findinag the maen of all the elements of the matrix
+        sum += inp[i];
+    xbar = sum/(row*col);
+    
+    double one[row*col];			// Creating a matrix of ones
+    donesa(one,row,col);
+
+    double prod[row*col];
+    for(int i = 0; i < row*col; i++)		// Applying the formula (x(i,j)-xbar)/sigma
+        prod[i] = one[i]*xbar;
+
+    for(int i = 0; i < row*col; i++)
+        out[i] = inp[i] - prod[i];
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/dcentercola.c b/2.3-1/src/c/statisticsFunctions/center/dcentercola.c
new file mode 100644
index 00000000..e92a1d29
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/dcentercola.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "matrixMultiplication.h"
+#include "center.h"
+
+void dcentercola (double* inp, int row, int col, double* out)
+{
+
+    double 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;
+
+    double one[col];			// Creating a matrix of ones
+    donesa(one,1,col);
+
+
+    double prod[row*col];
+    dmulma(xbar, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = inp[i] - prod[i];   
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/dcenterrowa.c b/2.3-1/src/c/statisticsFunctions/center/dcenterrowa.c
new file mode 100644
index 00000000..e6f7e3cd
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/dcenterrowa.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "matrixMultiplication.h"
+#include "center.h"
+
+void dcenterrowa (double* inp, int row, int col, double* out)
+{
+
+    double 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;
+
+    double one[row];			// Creating a matrix of ones
+    donesa(one,row,1);
+
+    double prod[row*col];
+    dmulma(one, row, 1, xbar, 1, col, prod);
+
+    
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = inp[i] - prod[i];
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/scentera.c b/2.3-1/src/c/statisticsFunctions/center/scentera.c
new file mode 100644
index 00000000..2b165be1
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/scentera.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "multiplication.h"
+#include "center.h"
+
+void scentera (float* inp, int row, int col, float* out)
+{
+    float sum = 0, xbar = 0, sigma = 0;
+    for(int i = 0; i < row*col; i++)		// Findinag the maen of all the elements of the matrix
+        sum += inp[i];
+    xbar = sum/(row*col);
+    
+    float one[row*col];			// Creating a matrix of ones
+    sonesa(one,row,col);
+
+    float prod[row*col];
+    for(int i = 0; i < row*col; i++)		// Applying the formula (x(i,j)-xbar)/sigma
+        prod[i] = one[i]*xbar;
+
+    for(int i = 0; i < row*col; i++)
+        out[i] = inp[i] - prod[i];
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/scentercola.c b/2.3-1/src/c/statisticsFunctions/center/scentercola.c
new file mode 100644
index 00000000..d5ef5eeb
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/scentercola.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "matrixMultiplication.h"
+#include "center.h"
+
+void scentercola (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];
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/scenterrowa.c b/2.3-1/src/c/statisticsFunctions/center/scenterrowa.c
new file mode 100644
index 00000000..b5910cd9
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/scenterrowa.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "matrixMultiplication.h"
+#include "center.h"
+
+void scenterrowa (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];
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/zcentera.c b/2.3-1/src/c/statisticsFunctions/center/zcentera.c
new file mode 100644
index 00000000..22ce70d7
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/zcentera.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "center.h"
+#include "doubleComplex.h"
+#include "sqrt.h"
+
+void zcentera (doubleComplex* inp, int row, int col, doubleComplex* out)
+{
+    doubleComplex sum = 0, xbar = 0, sigma = 0;
+    for(int i = 0; i < row*col; i++)		// Findinag the maen of all the elements of the matrix
+        sum = zadds(sum,inp[i]);
+    xbar = zrdivs(sum,(row*col));
+    
+    doubleComplex one[row*col];			// Creating a matrix of ones
+    zonesa(one,row,col);
+
+    doubleComplex prod[row*col];
+    for(int i = 0; i < row*col; i++)		// Applying the formula (x(i,j)-xbar)/sigma
+        prod[i] = zmuls(one[i],xbar);
+
+    for(int i = 0; i < row*col; i++)
+        out[i] = zdiffs(inp[i], prod[i]);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/zcentercola.c b/2.3-1/src/c/statisticsFunctions/center/zcentercola.c
new file mode 100644
index 00000000..8a838bc5
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/zcentercola.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "center.h"
+#include "doubleComplex.h"
+#include "sqrt.h"
+
+void zcentercola (doubleComplex* inp, int row, int col, doubleComplex* out)
+{
+
+    doubleComplex sum[row], xbar[row];
+    for(int i = 0; i < row; i++)
+	sum[i] = DoubleComplex(0,0);
+
+
+    for(int i = 0; i < row; i++)
+    {
+	for(int j = 0; j < col; j++)
+	{
+	    sum[i] =  zadds(sum[i], inp[i + j*row]);
+	}
+    }
+
+
+    for(int i = 0; i < row; i++)
+	xbar[i] = zrdivs(sum[i], col);
+
+    doubleComplex one[col];			// Creating a matrix of ones
+    zonesa(one,1,col);
+
+
+    doubleComplex prod[row*col];
+    zmulma(xbar, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = zdiffs(inp[i], prod[i]);   
+}
diff --git a/2.3-1/src/c/statisticsFunctions/center/zcenterrowa.c b/2.3-1/src/c/statisticsFunctions/center/zcenterrowa.c
new file mode 100644
index 00000000..cddd3403
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/center/zcenterrowa.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "center.h"
+#include "doubleComplex.h"
+#include "sqrt.h"
+
+void zcenterrowa (doubleComplex* inp, int row, int col, doubleComplex* out)
+{
+
+    doubleComplex sum[col], xbar[col];
+    for(int i = 0; i < col; i++)
+	sum[i] = DoubleComplex(0,0);
+
+
+    for(int i = 0; i < col; i++)
+    {
+	for(int j = 0; j < row; j++)
+	{
+	    sum[i] = zadds(sum[i], inp[j + i*row]);
+	}
+    }
+
+
+
+    for(int i = 0; i < col; i++)
+	xbar[i] = zrdivs(sum[i], row);
+
+    doubleComplex one[row];			// Creating a matrix of ones
+    zonesa(one,row,1);
+
+    doubleComplex prod[row*col];
+    zmulma(one, row, 1, xbar, 1, col, prod);
+
+    
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = zdiffs(inp[i], prod[i]);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/correl/dcorrelfres.c b/2.3-1/src/c/statisticsFunctions/correl/dcorrelfres.c
new file mode 100644
index 00000000..7d4c718a
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/correl/dcorrelfres.c
@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+
+double dcorrelfres (double* inp1, int sr1, int sc1, double* inp2, int sr2, int sc2, double* inp3, int sr3, int sc3)
+{
+    double p1[sr3], p2[sc3], m1 = 0, m2 = 0,  s1 = 0, s2 = 0, s3 = 0, diff1[sr1*sc1], diff2[sr2*sc2], sum = 0, prod[sr3];
+
+    double fr[sr3*sc3];
+
+    for(int i = 0; i < sr3*sc3; i++)
+	s3 += inp3[i];
+
+    for(int i = 0; i < sr3*sc3; i++)
+	fr[i] = inp3[i]/s3;
+
+
+
+    dcolumnsuma(fr, sr3, sc3, p1);
+    drowsuma(fr, sr3, sc3, p2);
+
+
+
+    m1 = dmulv(inp1, p1, sr3);
+    m2 = dmulv(inp2, p2, sc3);
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = pow(inp1[i] - m1, 2);
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = pow(inp2[i] - m2, 2);
+
+
+    s1 = dsqrts(dmulv(diff1, p1, sr3));
+    s2 = dsqrts(dmulv(p2, diff2, sc3));
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = inp1[i] - m1;
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = inp2[i] - m2;
+
+    dmulma(fr, sr3, sc3, diff2, sc2, 1, prod);
+
+    return dmulv(diff1, prod, sr3)/(s1*s2);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/correl/dcorrels.c b/2.3-1/src/c/statisticsFunctions/correl/dcorrels.c
new file mode 100644
index 00000000..eda07fc1
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/correl/dcorrels.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+
+double dcorrels (double* inp1, int sr1, int sc1, double* inp2, int sr2, int sc2)
+{
+    double m1 = 0, m2 = 0, s1 = 0, s2 = 0, diff1[sr1*sc1], diff2[sr2*sc2], sum = 0;
+    m1 = dmeana(inp1, sr1*sc1);
+    m2 = dmeana(inp2, sr2*sc2);
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = pow(inp1[i] - m1, 2);
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = pow(inp2[i] - m2, 2);
+
+
+    s1 = dsqrts(dsuma(diff1, sr1*sc1));
+    s2 = dsqrts(dsuma(diff2, sr2*sc2));
+
+    for(int i = 0; i < sr2*sc2; i++)
+	sum += (inp1[i] - m1) * (inp2[i] - m2); 
+
+    return sum / (s1*s2);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/correl/scorrelfres.c b/2.3-1/src/c/statisticsFunctions/correl/scorrelfres.c
new file mode 100644
index 00000000..2d056a5b
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/correl/scorrelfres.c
@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+
+float scorrelfres (float* inp1, int sr1, int sc1, float* inp2, int sr2, int sc2, float* inp3, int sr3, int sc3)
+{
+    float p1[sr3], p2[sc3], m1 = 0, m2 = 0,  s1 = 0, s2 = 0, s3 = 0, diff1[sr1*sc1], diff2[sr2*sc2], sum = 0, prod[sr3];
+
+    float fr[sr3*sc3];
+
+    for(int i = 0; i < sr3*sc3; i++)
+	s3 += inp3[i];
+
+    for(int i = 0; i < sr3*sc3; i++)
+	fr[i] = inp3[i]/s3;
+
+
+
+    scolumnsuma(fr, sr3, sc3, p1);
+    srowsuma(fr, sr3, sc3, p2);
+
+
+
+    m1 = smulv(inp1, p1, sr3);
+    m2 = smulv(inp2, p2, sc3);
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = pow(inp1[i] - m1, 2);
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = pow(inp2[i] - m2, 2);
+
+
+    s1 = ssqrts(smulv(diff1, p1, sr3));
+    s2 = ssqrts(smulv(p2, diff2, sc3));
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = inp1[i] - m1;
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = inp2[i] - m2;
+
+    smulma(fr, sr3, sc3, diff2, sc2, 1, prod);
+
+    return smulv(diff1, prod, sr3)/(s1*s2);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/correl/scorrels.c b/2.3-1/src/c/statisticsFunctions/correl/scorrels.c
new file mode 100644
index 00000000..892d8762
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/correl/scorrels.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+
+float scorrels (float* inp1, int sr1, int sc1, float* inp2, int sr2, int sc2)
+{
+    float m1 = 0, m2 = 0, s1 = 0, s2 = 0, diff1[sr1*sc1], diff2[sr2*sc2], sum = 0;
+    m1 = smeana(inp1, sr1*sc1);
+    m2 = smeana(inp2, sr2*sc2);
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = pow(inp1[i] - m1, 2);
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = pow(inp2[i] - m2, 2);
+
+
+    s1 = ssqrts(ssuma(diff1, sr1*sc1));
+    s2 = ssqrts(ssuma(diff2, sr2*sc2));
+
+    for(int i = 0; i < sr2*sc2; i++)
+	sum += (inp1[i] - m1) * (inp2[i] - m2); 
+
+    return sum / (s1*s2);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/correl/zcorrelfres.c b/2.3-1/src/c/statisticsFunctions/correl/zcorrelfres.c
new file mode 100644
index 00000000..b026c58a
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/correl/zcorrelfres.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "pow.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+#include "doubleComplex.h"
+
+doubleComplex zcorrelfres (doubleComplex* inp1, int sr1, int sc1, doubleComplex* inp2, int sr2, int sc2, doubleComplex* inp3, int sr3, int sc3)
+{
+    doubleComplex p1[sr3], p2[sc3], m1 = 0, m2 = 0,  s1 = 0, s2 = 0, s3 = 0, diff1[sr1*sc1], diff2[sr2*sc2], sum = 0, prod[sr3];
+
+    doubleComplex fr[sr3*sc3];
+
+    for(int i = 0; i < sr3*sc3; i++)
+	s3 = zadds(s3, inp3[i]);
+
+    for(int i = 0; i < sr3*sc3; i++)
+	fr[i] = zrdivs(inp3[i],s3);
+
+
+
+    zcolumnsuma(fr, sr3, sc3, p1);
+    zrowsuma(fr, sr3, sc3, p2);
+
+
+
+    m1 = zmulv(inp1, p1, sr3);
+    m2 = zmulv(inp2, p2, sc3);
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = zpows(zdiffs(inp1[i], m1), DoubleComplex(2,0));
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = zpows(zdiffs(inp2[i], m2), DoubleComplex(2,0));
+
+
+    s1 = zsqrts(zmulv(diff1, p1, sr3));
+    s2 = zsqrts(zmulv(p2, diff2, sc3));
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = zdiffs(inp1[i], m1);
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = zdiffs(inp2[i], m2);
+
+    zmulma(fr, sr3, sc3, diff2, sc2, 1, prod);
+
+    return zrdivs(zmulv(diff1, prod, sr3), zmuls(s1, s2));
+}
diff --git a/2.3-1/src/c/statisticsFunctions/correl/zcorrels.c b/2.3-1/src/c/statisticsFunctions/correl/zcorrels.c
new file mode 100644
index 00000000..818a6800
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/correl/zcorrels.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "pow.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+#include "doubleComplex.h"
+
+doubleComplex zcorrels (doubleComplex* inp1, int sr1, int sc1, doubleComplex* inp2, int sr2, int sc2)
+{
+    doubleComplex m1 = 0, m2 = 0, s1 = 0, s2 = 0, diff1[sr1*sc1], diff2[sr2*sc2], sum = 0;
+    m1 = zmeana(inp1, sr1*sc1);
+    m2 = zmeana(inp2, sr2*sc2);
+
+    for(int i = 0; i < sr1*sc1; i++)
+	diff1[i] = zpows(zdiffs(inp1[i], m1), DoubleComplex(2,0));
+
+    for(int i = 0; i < sr2*sc2; i++)
+	diff2[i] = zpows(zdiffs(inp2[i], m2), DoubleComplex(2,0));
+
+
+    s1 = zsqrts(zsuma(diff1, sr1*sc1));
+    s2 = zsqrts(zsuma(diff2, sr2*sc2));
+
+    for(int i = 0; i < sr2*sc2; i++)
+	sum = zadds(sum, zmuls(zdiffs(inp1[i], m1), zdiffs(inp2[i], m2))); 
+
+    return zrdivs(sum, zmuls(s1,s2));
+}
diff --git a/2.3-1/src/c/statisticsFunctions/includes/center.h b/2.3-1/src/c/statisticsFunctions/includes/center.h
new file mode 100644
index 00000000..57a109b3
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/includes/center.h
@@ -0,0 +1,47 @@
+ /* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+
+#ifndef __CENTER_H__
+#define __CENTER_H__
+#include "types.h"
+#include "doubleComplex.h"
+#include "floatComplex.h"
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+void dcentera (double* inp, int row, int col, double* out);
+void dcentercola (double* inp, int row, int col, double* out);
+void dcenterrowa (double* inp, int row, int col, double* out);
+
+void scentera (float* inp, int row, int col, float* out);
+void scentercola (float* inp, int row, int col, float* out);
+void scenterrowa (float* inp, int row, int col, float* out);
+
+void zcentera (doubleComplex* inp, int row, int col, doubleComplex* out);
+void zcentercola (doubleComplex* inp, int row, int col, doubleComplex* out);
+void zcenterrowa (doubleComplex* inp, int row, int col, doubleComplex* out);
+
+
+#ifdef  __cplusplus 
+} /* extern "C" */
+#endif
+
+#endif /*__CENTER_H__*/
diff --git a/2.3-1/src/c/statisticsFunctions/includes/correl.h b/2.3-1/src/c/statisticsFunctions/includes/correl.h
new file mode 100644
index 00000000..8a9c0365
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/includes/correl.h
@@ -0,0 +1,48 @@
+ /* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+
+#ifndef __CORREL_H__
+#define __CORREL_H__
+#include "types.h"
+#include "doubleComplex.h"
+#include "floatComplex.h"
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+#include "sum.h"
+#include "correl.h"
+#include "matrix.h"
+#include "mean.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+double dcorrels (double* inp1, int sr1, int sc1, double* inp2, int sr2, int sc2);
+double dcorrelfres (double* inp1, int sr1, int sc1, double* inp2, int sr2, int sc2, double* inp3, int sr3, int sc3);
+
+float scorrels (float* inp1, int sr1, int sc1, float* inp2, int sr2, int sc2);
+float scorrelfres (float* inp1, int sr1, int sc1, float* inp2, int sr2, int sc2, float* inp3, int sr3, int sc3);
+
+doubleComplex zcorrels (doubleComplex* inp1, int sr1, int sc1, doubleComplex* inp2, int sr2, int sc2);
+doubleComplex zcorrelfres (doubleComplex* inp1, int sr1, int sc1, doubleComplex* inp2, int sr2, int sc2, doubleComplex* inp3, int sr3, int sc3);
+
+
+#ifdef  __cplusplus 
+} /* extern "C" */
+#endif
+
+#endif /*__CORREL_H__*/
diff --git a/2.3-1/src/c/statisticsFunctions/includes/wcenter.h b/2.3-1/src/c/statisticsFunctions/includes/wcenter.h
new file mode 100644
index 00000000..3919fd37
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/includes/wcenter.h
@@ -0,0 +1,47 @@
+ /* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+
+#ifndef __WCENTER_H__
+#define __WCENTER_H__
+#include "types.h"
+#include "doubleComplex.h"
+#include "floatComplex.h"
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "sqrt.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+void dwcentera (double* inp, int row, int col, double* out);
+void dwcentercola (double* inp, int row, int col, double* out);
+void dwcenterrowa (double* inp, int row, int col, double* out);
+
+void swcentera (float* inp, int row, int col, float* out);
+void swcentercola (float* inp, int row, int col, float* out);
+void swcenterrowa (float* inp, int row, int col, float* out);
+
+void zwcentera (doubleComplex* inp, int row, int col, doubleComplex* out);
+void zwcentercola (doubleComplex* inp, int row, int col, doubleComplex* out);
+void zwcenterrowa (doubleComplex* inp, int row, int col, doubleComplex* out);
+
+
+#ifdef  __cplusplus 
+} /* extern "C" */
+#endif
+
+#endif /*__WCENTER_H__*/
diff --git a/2.3-1/src/c/statisticsFunctions/interfaces/int_center.h b/2.3-1/src/c/statisticsFunctions/interfaces/int_center.h
new file mode 100644
index 00000000..041937e0
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/interfaces/int_center.h
@@ -0,0 +1,36 @@
+ /* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_CENTER_H__
+#define __INT_CENTER_H__
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#define d2centerd2(in1,size, out) 				dcentera(in1,size[0],size[1],out)
+#define d2g2centerd2(in1, size, in2, size2 ,out)		(in2[0] == 'r') ? dcenterrowa(in1, size[0], size[1], out) :  dcentercola(in1, size[0], size[1], out)	
+#define d2d0centerd2(in1, size, in2 ,out)			(in2 == 1) ? dcenterrowa(in1, size[0], size[1], out) :  dcentercola(in1, size[0], size[1], out)	
+
+#define s2centers2(in1,size, out) 				scentera(in1,size[0],size[1],out)
+#define s2g2centers2(in1, size, in2, size2 ,out)		(in2[0] == 'r') ? scenterrowa(in1, size[0], size[1], out) :  scentercola(in1, size[0], size[1], out)	
+#define s2d0centers2(in1, size, in2 ,out)			(in2 == 1) ? scenterrowa(in1, size[0], size[1], out) :  scentercola(in1, size[0], size[1], out)	
+
+#define z2centerz2(in1,size, out) 				zcentera(in1,size[0],size[1],out)
+#define z2g2centerz2(in1, size, in2, size2 ,out)		(in2[0] == 'r') ? zcenterrowa(in1, size[0], size[1], out) :  zcentercola(in1, size[0], size[1], out)	
+#define z2d0centerz2(in1, size, in2 ,out)			(in2 == 1) ? zcenterrowa(in1, size[0], size[1], out) :  zcentercola(in1, size[0], size[1], out)	
+
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*__INT_CENTER_H__*/
diff --git a/2.3-1/src/c/statisticsFunctions/interfaces/int_correl.h b/2.3-1/src/c/statisticsFunctions/interfaces/int_correl.h
new file mode 100644
index 00000000..8dd5c31e
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/interfaces/int_correl.h
@@ -0,0 +1,34 @@
+ /* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_CORREL_H__
+#define __INT_CORREL_H__
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+
+#define d2d2correld0(in1, size, in2, size2)				dcorrels(in1, size[0], size[1], in2, size2[0], size2[1])	
+#define d2d2d2correld0(in1, size, in2, size2, in3, size3)		dcorrelfres(in1, size[0], size[1], in2, size2[0], size2[1], in3, size3[0], size3[1])	
+
+#define s2s2correls0(in1, size, in2, size2)				scorrels(in1, size[0], size[1], in2, size2[0], size2[1])	
+#define s2s2s2correls0(in1, size, in2, size2, in3, size3)		scorrelfres(in1, size[0], size[1], in2, size2[0], size2[1], in3, size3[0], size3[1])	
+
+#define z2z2correlz0(in1, size, in2, size2)				zcorrels(in1, size[0], size[1], in2, size2[0], size2[1])	
+#define z2z2z2correlz0(in1, size, in2, size2, in3, size3)		zcorrelfres(in1, size[0], size[1], in2, size2[0], size2[1], in3, size3[0], size3[1])	
+
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*__INT_CORREL_H__*/
diff --git a/2.3-1/src/c/statisticsFunctions/interfaces/int_wcenter.h b/2.3-1/src/c/statisticsFunctions/interfaces/int_wcenter.h
new file mode 100644
index 00000000..38273af1
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/interfaces/int_wcenter.h
@@ -0,0 +1,36 @@
+ /* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ This file must be used under the terms of the CeCILL.
+ This source file is licensed as described in the file COPYING, which
+ you should have received as part of this distribution.  The terms
+ are also available at
+ http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ Author: Brijesh Gupta C R
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+#ifndef __INT_WCENTER_H__
+#define __INT_WCENTER_H__
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#define d2wcenterd2(in1,size, out) 				dwcentera(in1,size[0],size[1],out)
+#define d2g2wcenterd2(in1, size, in2, size2 ,out)		(in2[0] == 'r') ? dwcenterrowa(in1, size[0], size[1], out) :  dwcentercola(in1, size[0], size[1], out)	
+#define d2d0wcenterd2(in1, size, in2 ,out)			(in2 == 1) ? dwcenterrowa(in1, size[0], size[1], out) :  dwcentercola(in1, size[0], size[1], out)	
+
+#define s2wcenters2(in1,size, out) 				swcentera(in1,size[0],size[1],out)
+#define s2g2wcenters2(in1, size, in2, size2 ,out)		(in2[0] == 'r') ? swcenterrowa(in1, size[0], size[1], out) :  swcentercola(in1, size[0], size[1], out)	
+#define s2d0wcenters2(in1, size, in2 ,out)			(in2 == 1) ? swcenterrowa(in1, size[0], size[1], out) :  swcentercola(in1, size[0], size[1], out)	
+
+#define z2wcenterz2(in1,size, out) 				zwcentera(in1,size[0],size[1],out)
+#define z2g2wcenterz2(in1, size, in2, size2 ,out)		(in2[0] == 'r') ? zwcenterrowa(in1, size[0], size[1], out) :  zwcentercola(in1, size[0], size[1], out)	
+#define z2d0wcenterz2(in1, size, in2 ,out)			(in2 == 1) ? zwcenterrowa(in1, size[0], size[1], out) :  zwcentercola(in1, size[0], size[1], out)	
+
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*__INT_WCENTER_H__*/
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/dwcentera.c b/2.3-1/src/c/statisticsFunctions/wcenter/dwcentera.c
new file mode 100644
index 00000000..5c05cc86
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/dwcentera.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "multiplication.h"
+#include "wcenter.h"
+
+void dwcentera (double* inp, int row, int col, double* out)
+{
+    double sum = 0, xbar = 0, sigma = 0;
+    for(int i = 0; i < row*col; i++)		// Findinag the maen of all the elements of the matrix
+        sum += inp[i];
+    xbar = sum/(row*col);
+    
+    double one[row*col];			// Creating a matrix of ones
+    donesa(one,row,col);
+
+    double prod[row*col];
+    for(int i = 0; i < row*col; i++)		// Applying the formula (x(i,j)-xbar)/sigma
+        prod[i] = one[i]*xbar;
+
+    for(int i = 0; i < row*col; i++)
+        out[i] = inp[i] - prod[i];
+
+    sum = 0;
+    for(int i = 0; i < row*col; i++)
+        sum =  sum + out[i]*out[i];
+
+    sigma = sqrt(sum/(row*col-1));
+    
+    for(int i = 0; i < row*col; i++)
+        out[i] = out[i]/sigma;
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/dwcentercola.c b/2.3-1/src/c/statisticsFunctions/wcenter/dwcentercola.c
new file mode 100644
index 00000000..ab82acfe
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/dwcentercola.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "matrixMultiplication.h"
+#include "wcenter.h"
+
+void dwcentercola (double* inp, int row, int col, double* out)
+{
+
+    double 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++)
+	//printf("%lf \n",sum[i]);
+
+    for(int i = 0; i < row; i++)
+	xbar[i] = sum[i]/col;
+
+    double one[col];			// Creating a matrix of ones
+    donesa(one,1,col);
+
+
+    double prod[row*col];
+    dmulma(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];
+	}
+    }
+
+    double 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;
+
+    dmulma(sigma, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i < row*col; i++)
+	out[i] = out[i] / prod[i];
+    
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/dwcenterrowa.c b/2.3-1/src/c/statisticsFunctions/wcenter/dwcenterrowa.c
new file mode 100644
index 00000000..72e37931
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/dwcenterrowa.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 dwcenterrowa (double* inp, int row, int col, double* out)
+{
+
+    double 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;
+
+    double one[row];			// Creating a matrix of ones
+    donesa(one,row,1);
+
+    double prod[row*col];
+    dmulma(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];
+	}
+    }
+
+
+
+    double 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;
+
+    dmulma(one, row, 1, sigma, 1, col, prod);
+
+    for(int i = 0; i < row*col; i++)
+	out[i] = out[i] / prod[i];
+
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/swcentera.c b/2.3-1/src/c/statisticsFunctions/wcenter/swcentera.c
new file mode 100644
index 00000000..91206fcf
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/swcentera.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "subtraction.h"
+#include "multiplication.h"
+#include "wcenter.h"
+
+void swcentera (float* inp, int row, int col, float* out)
+{
+    float sum = 0, xbar = 0, sigma = 0;
+    for(int i = 0; i < row*col; i++)		// Findinag the maen of all the elements of the matrix
+        sum += inp[i];
+    xbar = sum/(row*col);
+    
+    float one[row*col];			// Creating a matrix of ones
+    sonesa(one,row,col);
+
+    float prod[row*col];
+    for(int i = 0; i < row*col; i++)		// Applying the formula (x(i,j)-xbar)/sigma
+        prod[i] = one[i]*xbar;
+
+    for(int i = 0; i < row*col; i++)
+        out[i] = inp[i] - prod[i];
+
+    sum = 0;
+    for(int i = 0; i < row*col; i++)
+        sum =  sum + out[i]*out[i];
+
+    sigma = sqrt(sum/(row*col-1));
+    
+    for(int i = 0; i < row*col; i++)
+        out[i] = out[i]/sigma;
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/swcentercola.c b/2.3-1/src/c/statisticsFunctions/wcenter/swcentercola.c
new file mode 100644
index 00000000..6fafe9f9
--- /dev/null
+++ b/2.3-1/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];
+    
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/swcenterrowa.c b/2.3-1/src/c/statisticsFunctions/wcenter/swcenterrowa.c
new file mode 100644
index 00000000..ce1df2e9
--- /dev/null
+++ b/2.3-1/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];
+
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/zwcentera.c b/2.3-1/src/c/statisticsFunctions/wcenter/zwcentera.c
new file mode 100644
index 00000000..8571dd62
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/zwcentera.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "wcenter.h"
+#include "doubleComplex.h"
+#include "sqrt.h"
+
+void zwcentera (doubleComplex* inp, int row, int col, doubleComplex* out)
+{
+    doubleComplex sum = 0, xbar = 0, sigma = 0;
+    for(int i = 0; i < row*col; i++)		// Findinag the maen of all the elements of the matrix
+        sum = zadds(sum,inp[i]);
+    xbar = zrdivs(sum,(row*col));
+    
+    doubleComplex one[row*col];			// Creating a matrix of ones
+    zonesa(one,row,col);
+
+    doubleComplex prod[row*col];
+    for(int i = 0; i < row*col; i++)		// Applying the formula (x(i,j)-xbar)/sigma
+        prod[i] = zmuls(one[i],xbar);
+
+    for(int i = 0; i < row*col; i++)
+        out[i] = zdiffs(inp[i], prod[i]);
+
+    sum = DoubleComplex(0,0);
+    for(int i = 0; i < row*col; i++)
+        sum =  zadds(sum, zmuls(out[i],out[i]));
+
+    sigma = zsqrts(zrdivs(sum,(row*col-1)));
+    
+    for(int i = 0; i < row*col; i++)
+        out[i] = zrdivs(out[i],sigma);
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/zwcentercola.c b/2.3-1/src/c/statisticsFunctions/wcenter/zwcentercola.c
new file mode 100644
index 00000000..5e4e2bdd
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/zwcentercola.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "wcenter.h"
+#include "doubleComplex.h"
+#include "sqrt.h"
+
+void zwcentercola (doubleComplex* inp, int row, int col, doubleComplex* out)
+{
+
+    doubleComplex sum[row], xbar[row];
+    for(int i = 0; i < row; i++)
+	sum[i] = DoubleComplex(0,0);
+
+
+    for(int i = 0; i < row; i++)
+    {
+	for(int j = 0; j < col; j++)
+	{
+	    sum[i] =  zadds(sum[i], inp[i + j*row]);
+	}
+    }
+
+
+    for(int i = 0; i < row; i++)
+	xbar[i] = zrdivs(sum[i], col);
+
+    doubleComplex one[col];			// Creating a matrix of ones
+    zonesa(one,1,col);
+
+
+    doubleComplex prod[row*col];
+    zmulma(xbar, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = zdiffs(inp[i], prod[i]);
+
+    for(int i = 0; i < row; i++)
+	sum[i] = DoubleComplex(0,0);
+
+    for(int i = 0; i < row; i++)
+    {
+	for(int j = 0; j < col; j++)
+	{
+	    sum[i] = zadds(sum[i], zmuls(out[i + j*row], out[i + j*row]));
+	}
+    }
+
+    doubleComplex sigma[row];
+    for(int i = 0; i < row; i++)
+	sigma[i] = zsqrts(zrdivs(sum[i],(col-1)));
+
+    for(int i = 0; i < row*col; i++)
+	prod[i] = DoubleComplex(0,0);
+
+    zmulma(sigma, row, 1, one, 1, col, prod);
+
+    for(int i = 0; i < row*col; i++)
+	out[i] = zrdivs(out[i], prod[i]);
+    
+}
diff --git a/2.3-1/src/c/statisticsFunctions/wcenter/zwcenterrowa.c b/2.3-1/src/c/statisticsFunctions/wcenter/zwcenterrowa.c
new file mode 100644
index 00000000..f68835d8
--- /dev/null
+++ b/2.3-1/src/c/statisticsFunctions/wcenter/zwcenterrowa.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <ones.h>
+#include "addition.h"
+#include "subtraction.h"
+#include "multiplication.h"
+#include "division.h"
+#include "wcenter.h"
+#include "doubleComplex.h"
+#include "sqrt.h"
+
+void zwcenterrowa (doubleComplex* inp, int row, int col, doubleComplex* out)
+{
+
+    doubleComplex sum[col], xbar[col];
+    for(int i = 0; i < col; i++)
+	sum[i] = DoubleComplex(0,0);
+
+
+    for(int i = 0; i < col; i++)
+    {
+	for(int j = 0; j < row; j++)
+	{
+	    sum[i] = zadds(sum[i], inp[j + i*row]);
+	}
+    }
+
+
+
+    for(int i = 0; i < col; i++)
+	xbar[i] = zrdivs(sum[i], row);
+
+    doubleComplex one[row];			// Creating a matrix of ones
+    zonesa(one,row,1);
+
+    doubleComplex prod[row*col];
+    zmulma(one, row, 1, xbar, 1, col, prod);
+
+    
+
+    for(int i = 0; i< row*col; i++)
+	out[i] = zdiffs(inp[i], prod[i]);
+
+
+    for(int i = 0; i < col; i++)
+	sum[i] = DoubleComplex(0,0);
+
+    for(int i = 0; i < col; i++)
+    {
+	for(int j = 0; j < row; j++)
+	{
+	    sum[i] = zadds(sum[i], zmuls(out[j + i*row], out[j + i*row]));
+	}
+    }
+
+
+
+    doubleComplex sigma[col];
+    for(int i = 0; i < col; i++)
+	sigma[i] = zsqrts(zrdivs(sum[i],(row-1)));
+
+
+    for(int i = 0; i < row*col; i++)
+	prod[i] = DoubleComplex(0,0);
+
+    zmulma(one, row, 1, sigma, 1, col, prod);
+
+    for(int i = 0; i < row*col; i++)
+	out[i] = zrdivs(out[i], prod[i]);
+
+}