kopia lustrzana https://github.com/Dsplib/libdspl-2.0
710 wiersze
20 KiB
C
710 wiersze
20 KiB
C
/*
|
||
* Copyright (c) 2015-2019 Sergey Bakhurin
|
||
* Digital Signal Processing Library [http://dsplib.org]
|
||
*
|
||
* This file is part of libdspl-2.0.
|
||
*
|
||
* is free software: you can redistribute it and/or modify
|
||
* it under the terms of the GNU Lesser 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 Lesser General Public License
|
||
* along with Foobar. If not, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
|
||
|
||
#include <stdio.h>
|
||
#include <math.h>
|
||
#include "dspl.h"
|
||
#include "dspl_internal.h"
|
||
|
||
|
||
|
||
#ifdef DOXYGEN_ENGLISH
|
||
|
||
#endif
|
||
#ifdef DOXYGEN_RUSSIAN
|
||
/*! ****************************************************************************
|
||
\ingroup WIN_GROUP
|
||
\fn int window(double* w, int n, int win_type, double param)
|
||
\brief Расчет функции оконного взвешивания
|
||
|
||
Функция рассчитывает периодическую или симметричную оконную функцию
|
||
в соответствии с параметром `win_type`. \n
|
||
|
||
Периодическая оконная функция используется для спектрального анализа,
|
||
а симметричная оконная функция может быть использована для синтеза
|
||
КИХ-фильтров.
|
||
|
||
\param [in,out] w
|
||
Указатель на вектор оконной функции. \n
|
||
Размер вектора `[n x 1]`. \n
|
||
Память должна быть выделена. \n
|
||
Рассчитанная оконная функция будет помещена по данному адресу. \n \n
|
||
|
||
\param [in] n
|
||
Размер вектора `w` оконной функции. \n \n
|
||
|
||
\param [in] win_type
|
||
Комбинация флагов для задания типа оконной функции. \n
|
||
Для задания типа окна используется комбинация битовых масок
|
||
`DSPL_WIN_MASK | DSPL_WIN_SYM_MASK`. \n
|
||
Маска `DSPL_WIN_MASK` задает тип оконной функции.
|
||
Может принимать следующие значения: \n
|
||
\verbatim
|
||
-------------------------------------------------------------------------
|
||
Значение DSPL_WIN_MASK | Описание
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_BARTLETT | Непараметрическое окно Бартлетта
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_BARTLETT_HANN | Непараметрическое окно Бартлетта-Ханна
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_BLACKMAN | Непараметрическое окно Блэкмана
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_BLACKMAN_HARRIS | Непараметрическое окно Блэкмана-Харриса
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_BLACKMAN_NUTTALL | Непараметрическое окно Блэкмана-Натталла
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_CHEBY | Параметрическое окно Дольф-Чебышева.
|
||
| Данное окно всегда является симметричным и
|
||
| игнорирует параметр DSPL_WIN_SYM_MASK .
|
||
| Параметр param задает уровень боковых
|
||
| лепестков в дБ.
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_COS | Непараметрическое косинус-окно
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_FLAT_TOP | Непараметрическое окно с максимально
|
||
| плоской вершиной
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_GAUSSIAN | Параметрическое окно Гаусса
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_HAMMING | Непараметрическое окно Хемминга
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_HANN | Непараметрическое окно Ханна
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_KAISER | Параметрическое окно Кайзера
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_LANCZOS | Непараметрическое окно Ланкзоса
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_NUTTALL | Непараметрическое окно Натталла
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_RECT | Непараметрическое прямоугольное окно
|
||
-------------------------------------------------------------------------
|
||
\endverbatim
|
||
\n
|
||
Маска `DSPL_WIN_SYM_MASK` задает симметричное
|
||
или периодическое окно: \n
|
||
\verbatim
|
||
-------------------------------------------------------------------------
|
||
Значение DSPL_WIN_SYM_MASK | Описание
|
||
-----------------------------|-------------------------------------------
|
||
DSPL_WIN_SYMMETRIC | Симметричное окно (по умолчанию)
|
||
DSPL_WIN_PERIODIC | Периодическое окно
|
||
-------------------------------------------------------------------------
|
||
\endverbatim
|
||
\n \n
|
||
|
||
\param [in] param
|
||
Параметр окна. \n
|
||
Данный параметр применяется только для параметрических оконных функций. \n
|
||
Для непараметрических окон игнорируется. \n\n
|
||
|
||
\return
|
||
`RES_OK` если оконная функция рассчитана успешно. \n
|
||
В противном случае \ref ERROR_CODE_GROUP "код ошибки".
|
||
|
||
\author Бахурин Сергей. www.dsplib.org
|
||
***************************************************************************** */
|
||
#endif
|
||
int DSPL_API window(double* w, int n, int win_type, double param)
|
||
{
|
||
switch(win_type & DSPL_WIN_MASK)
|
||
{
|
||
case DSPL_WIN_BARTLETT:
|
||
return win_bartlett(w, n, win_type);
|
||
case DSPL_WIN_BARTLETT_HANN:
|
||
return win_bartlett_hann(w, n, win_type);
|
||
case DSPL_WIN_BLACKMAN:
|
||
return win_blackman(w, n, win_type);
|
||
case DSPL_WIN_BLACKMAN_HARRIS:
|
||
return win_blackman_harris(w, n, win_type);
|
||
case DSPL_WIN_BLACKMAN_NUTTALL:
|
||
return win_blackman_nuttall(w, n, win_type);
|
||
case DSPL_WIN_CHEBY:
|
||
return win_cheby(w, n, param);
|
||
case DSPL_WIN_FLAT_TOP:
|
||
return win_flat_top(w, n, win_type);
|
||
case DSPL_WIN_GAUSSIAN:
|
||
return win_gaussian(w, n, win_type, param);
|
||
case DSPL_WIN_HAMMING:
|
||
return win_hamming(w, n, win_type);
|
||
case DSPL_WIN_HANN:
|
||
return win_hann(w, n, win_type);
|
||
case DSPL_WIN_KAISER:
|
||
return win_kaiser(w, n, win_type, param);
|
||
case DSPL_WIN_LANCZOS:
|
||
return win_lanczos(w, n, win_type);
|
||
case DSPL_WIN_NUTTALL:
|
||
return win_nuttall(w, n, win_type);
|
||
case DSPL_WIN_RECT:
|
||
return win_rect(w, n);
|
||
case DSPL_WIN_COS:
|
||
return win_cos(w, n, win_type);
|
||
default:
|
||
return ERROR_WIN_TYPE;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Barlett window function
|
||
*******************************************************************************/
|
||
int win_bartlett(double *w, int n, int win_type)
|
||
{
|
||
double x = 0.0;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = (double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = (double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
for(i = 0; i < n; i++)
|
||
{
|
||
w[i] = 2.0 / x * (x * 0.5-fabs((double)i - x * 0.5));
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Barlett - Hann window function
|
||
******************************************************************************/
|
||
int win_bartlett_hann(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = 1.0/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = 1.0/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
w[i] = 0.62 - 0.48 * fabs(y-0.5)-0.38*cos(M_2PI*y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Blackman window function
|
||
******************************************************************************/
|
||
int win_blackman(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
w[i] = 0.42 - 0.5* cos(y)+0.08*cos(2.0*y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Blackman - Harris window function
|
||
******************************************************************************/
|
||
int win_blackman_harris(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
double a0 = 0.35875;
|
||
double a1 = 0.48829;
|
||
double a2 = 0.14128;
|
||
double a3 = 0.01168;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
w[i] = a0 - a1* cos(y)+a2*cos(2.0*y)-a3*cos(3.0*y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Blackman - Nuttull window function
|
||
******************************************************************************/
|
||
int win_blackman_nuttall(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
double a0 = 0.3635819;
|
||
double a1 = 0.4891775;
|
||
double a2 = 0.1365995;
|
||
double a3 = 0.0106411;
|
||
int i;
|
||
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
w[i] = a0 - a1* cos(y)+a2*cos(2.0*y)-a3*cos(3.0*y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Chebyshev parametric window function
|
||
param sets spectrum sidelobes level in dB
|
||
ATTENTION! ONLY SYMMETRIC WINDOW
|
||
*******************************************************************************/
|
||
int win_cheby(double *w, int n, double param)
|
||
{
|
||
int k, i, m;
|
||
double z, dz, sum = 0, wmax=0, r1, x0, chx, chy, in;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
if(param <= 0.0)
|
||
return ERROR_WIN_PARAM;
|
||
|
||
r1 = pow(10, param/20);
|
||
x0 = cosh((1.0/(double)(n-1)) * acosh(r1));
|
||
|
||
/* check window length even or odd */
|
||
if(n%2==0)
|
||
{
|
||
dz = 0.5;
|
||
m = n/2-1;
|
||
}
|
||
else
|
||
{
|
||
m = (n-1)/2;
|
||
dz = 0.0;
|
||
}
|
||
|
||
for(k = 0; k < m+2; k++)
|
||
{
|
||
z = (double)(k - m) - dz;
|
||
sum = 0;
|
||
|
||
for(i = 1; i <= m; i++)
|
||
{
|
||
in = (double)i / (double)n;
|
||
chx = x0 * cos(M_PI * in);
|
||
cheby_poly1(&chx, 1, n-1, &chy);
|
||
sum += chy * cos(2.0 * z * M_PI * in);
|
||
}
|
||
|
||
w[k] = r1 + 2.0 * sum;
|
||
w[n-1-k] = w[k];
|
||
|
||
/* max value calculation */
|
||
if(w[k]>wmax)
|
||
wmax=w[k];
|
||
}
|
||
|
||
/* normalization */
|
||
for(k=0; k < n; k++)
|
||
w[k] /= wmax;
|
||
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Cosine window function
|
||
******************************************************************************/
|
||
int win_cos(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
w[i] = sin(y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Flat - Top window function
|
||
******************************************************************************/
|
||
int win_flat_top(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
double a0 = 1.0;
|
||
double a1 = 1.93;
|
||
double a2 = 1.29;
|
||
double a3 = 0.388;
|
||
double a4 = 0.032;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
w[i] = a0 - a1* cos(y)+a2*cos(2.0*y)-a3*cos(3.0*y)+a4*cos(4.0*y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Gaussian window function
|
||
******************************************************************************/
|
||
int win_gaussian(double *w, int n, int win_type, double alpha)
|
||
{
|
||
double x = 0.0;
|
||
double y;
|
||
double sigma;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = (double)(n-1)*0.5; break;
|
||
case DSPL_WIN_PERIODIC : x = (double)(n)*0.5; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
|
||
sigma = alpha / x;
|
||
for(i = 0; i<n; i++)
|
||
{
|
||
y = ((double)i - x)*sigma;
|
||
w[i] = exp(-0.5*y*y);
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Hamming window function
|
||
******************************************************************************/
|
||
int win_hamming(double *w, int n, int win_type)
|
||
{
|
||
double x = 0.0;
|
||
double y;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i < n; i++)
|
||
{
|
||
w[i] = 0.54-0.46*cos(y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Hann window function
|
||
******************************************************************************/
|
||
int win_hann(double *w, int n, int win_type)
|
||
{
|
||
double x = 0.0;
|
||
double y;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i < n; i++)
|
||
{
|
||
w[i] = 0.5*(1-cos(y));
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
/******************************************************************************
|
||
Kaiser window function
|
||
******************************************************************************/
|
||
int win_kaiser(double* w, int n, int win_type, double param)
|
||
{
|
||
double num, den, x, y;
|
||
int i, err;
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = 1.0/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = 1.0/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
err = bessel_i0(¶m, 1, &den);
|
||
if(err != RES_OK)
|
||
return err;
|
||
for(i = 0; i < n; i++)
|
||
{
|
||
y = (double)(2*i) / x - 1.0;
|
||
y = param * sqrt(1.0 - y*y);
|
||
err = bessel_i0(&y, 1, &num);
|
||
if(err != RES_OK)
|
||
return err;
|
||
w[i] = num / den;
|
||
}
|
||
return err;
|
||
}
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Lanczos window function
|
||
******************************************************************************/
|
||
int win_lanczos(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i < n; i++)
|
||
{
|
||
if((y - M_PI)==0.0)
|
||
w[i] = 1.0;
|
||
else
|
||
w[i] = sin(y - M_PI)/(y - M_PI);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
|
||
}
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Nuttall window function
|
||
******************************************************************************/
|
||
int win_nuttall(double *w, int n, int win_type)
|
||
{
|
||
double y;
|
||
double x = 0.0;
|
||
double a0 = 0.355768;
|
||
double a1 = 0.487396;
|
||
double a2 = 0.144232;
|
||
double a3 = 0.012604;
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
switch(win_type & DSPL_WIN_SYM_MASK)
|
||
{
|
||
case DSPL_WIN_SYMMETRIC: x = M_2PI/(double)(n-1); break;
|
||
case DSPL_WIN_PERIODIC : x = M_2PI/(double)n; break;
|
||
default: return ERROR_WIN_SYM;
|
||
}
|
||
|
||
y = 0.0;
|
||
for(i = 0; i < n; i++)
|
||
{
|
||
w[i] = a0 - a1* cos(y)+a2*cos(2.0*y)-a3*cos(3.0*y);
|
||
y += x;
|
||
}
|
||
return RES_OK;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
/******************************************************************************
|
||
Rectangle window function
|
||
******************************************************************************/
|
||
int win_rect(double *w, int n)
|
||
{
|
||
int i;
|
||
|
||
if(!w)
|
||
return ERROR_PTR;
|
||
if(n<2)
|
||
return ERROR_SIZE;
|
||
|
||
for(i = 0; i < n; i++)
|
||
w[i] = 1.0;
|
||
return RES_OK;
|
||
}
|
||
|