dspl/mean__cmplx_8c_source.html

/*

* Copyright (c) 2015-2024 Sergey Bakhurin

* Digital Signal Processing Library [http://dsplib.org]

*

* This file is part of DSPL.

*

* is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* DSPL is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.    See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with Foobar.    If not, see <http://www.gnu.org/licenses/>.

*/


#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "dspl.h"


#ifdef DOXYGEN_ENGLISH


#endif

#ifdef DOXYGEN_RUSSIAN


#endif

int DSPL_API mean_cmplx(complex_t* x, int n, complex_t* m)

{

    int k;

    complex_t sum;

    if(!x || !m)

        return ERROR_PTR;

    if(n<1)

        return ERROR_SIZE;


    RE(sum) = RE(x[0]);

    IM(sum) = IM(x[0]);

    for(k = 1; k < n; k++)

    {

        RE(sum) += RE(x[k]);

        IM(sum) += IM(x[k]);

    }

    RE(sum) /= (double)n;

    IM(sum) /= (double)n;

    memcpy(m, sum, sizeof(complex_t));


    return RES_OK;

}