kopia lustrzana https://github.com/Dsplib/libdspl-2.0
70 wiersze
1.5 KiB
C
70 wiersze
1.5 KiB
C
/*
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* Copyright (c) 2015-2024 Sergey Bakhurin
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* Digital Signal Processing Library [http://dsplib.org]
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*
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* This file is part of DSPL.
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*
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* is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DSPL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "dspl.h"
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#ifdef DOXYGEN_ENGLISH
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#endif
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#ifdef DOXYGEN_RUSSIAN
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#endif
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int DSPL_API histogram_norm(double* y, int n, int nh, double* x, double* w)
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{
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double *pedges = NULL;
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int k, res;
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if(!y || !x || !w)
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return ERROR_PTR;
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if(n<1 || nh<1)
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return ERROR_SIZE;
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pedges = (double*)malloc((nh+1)*sizeof(double));
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res = histogram(y, n, nh, pedges, w);
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if(res != RES_OK)
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goto exit_label;
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for(k = 1; k < nh+1; k++)
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{
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x[k-1] = 0.5*(pedges[k] + pedges[k-1]);
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w[k-1] /= ((double)n * (pedges[k] - pedges[k-1]));
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}
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res = RES_OK;
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exit_label:
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if(pedges)
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free(pedges);
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return res;
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}
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