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/* ----------------------------------------------------------------------
* Project: CMSIS DSP Library
* Title: arm_std_f64.c
* Description: Standard deviation of the elements of a floating-point vector
*
* $Date: 13 September 2021
* $Revision: V1.10.0
*
* Target Processor: Cortex-M and Cortex-A cores
* -------------------------------------------------------------------- */
/*
* Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "dsp/statistics_functions.h"
/**
@ingroup groupStats
*/
/**
@addtogroup STD
@{
*/
/**
@brief Standard deviation of the elements of a floating-point vector.
@param[in] pSrc points to the input vector
@param[in] blockSize number of samples in input vector
@param[out] pResult standard deviation value returned here
@return none
*/
void arm_std_f64(
const float64_t * pSrc,
uint32_t blockSize,
float64_t * pResult)
{
float64_t var;
arm_var_f64(pSrc,blockSize,&var);
*pResult = sqrt(var);
}
/**
@} end of STD group
*/
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