src/c/statisticsFunctions/center/scentera.c


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#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];
}