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			267 lines
		
	
	
		
			8.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			267 lines
		
	
	
		
			8.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /******************************************************************************
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|  * @file     statistics_functions_f16.h
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|  * @brief    Public header file for CMSIS DSP Library
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|  * @version  V1.10.0
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|  * @date     08 July 2021
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|  * Target Processor: Cortex-M and Cortex-A cores
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|  ******************************************************************************/
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| /*
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|  * Copyright (c) 2010-2020 Arm Limited or its affiliates. All rights reserved.
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|  *
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|  * SPDX-License-Identifier: Apache-2.0
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|  *
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|  * Licensed under the Apache License, Version 2.0 (the License); you may
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|  * not use this file except in compliance with the License.
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|  * You may obtain a copy of the License at
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|  *
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|  * www.apache.org/licenses/LICENSE-2.0
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|  *
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|  * Unless required by applicable law or agreed to in writing, software
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|  * distributed under the License is distributed on an AS IS BASIS, WITHOUT
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|  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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|  * See the License for the specific language governing permissions and
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|  * limitations under the License.
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|  */
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| 
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|  
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| #ifndef _STATISTICS_FUNCTIONS_F16_H_
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| #define _STATISTICS_FUNCTIONS_F16_H_
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| 
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| #include "arm_math_types_f16.h"
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| #include "arm_math_memory.h"
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| 
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| #include "dsp/none.h"
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| #include "dsp/utils.h"
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| 
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| #include "dsp/basic_math_functions_f16.h"
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| #include "dsp/fast_math_functions_f16.h"
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| 
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| #ifdef   __cplusplus
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| extern "C"
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| {
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| #endif
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| 
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| #if defined(ARM_FLOAT16_SUPPORTED)
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| 
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|  /**
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|    * @brief  Sum of the squares of the elements of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output value.
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|    */
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|   void arm_power_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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|  /**
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|    * @brief  Mean value of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output value.
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|    */
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|   void arm_mean_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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|   /**
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|    * @brief  Variance of the elements of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output value.
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|    */
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|   void arm_var_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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|  /**
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|    * @brief  Root Mean Square of the elements of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output value.
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|    */
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|   void arm_rms_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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|  /**
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|    * @brief  Standard deviation of the elements of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output value.
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|    */
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|   void arm_std_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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|  /**
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|    * @brief  Minimum value of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output pointer
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|    * @param[out] pIndex     is the array index of the minimum value in the input buffer.
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|    */
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|   void arm_min_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult,
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|         uint32_t * pIndex);
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| 
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|  /**
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|    * @brief  Minimum value of absolute values of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output pointer
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|    * @param[out] pIndex     is the array index of the minimum value in the input buffer.
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|    */
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|   void arm_absmin_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult,
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|         uint32_t * pIndex);
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| 
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| /**
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|  * @brief Maximum value of a floating-point vector.
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|  * @param[in]  pSrc       points to the input buffer
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|  * @param[in]  blockSize  length of the input vector
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|  * @param[out] pResult    maximum value returned here
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|  * @param[out] pIndex     index of maximum value returned here
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|  */
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|   void arm_max_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult,
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|         uint32_t * pIndex);
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| 
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| /**
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|  * @brief Maximum value of absolute values of a floating-point vector.
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|  * @param[in]  pSrc       points to the input buffer
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|  * @param[in]  blockSize  length of the input vector
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|  * @param[out] pResult    maximum value returned here
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|  * @param[out] pIndex     index of maximum value returned here
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|  */
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|   void arm_absmax_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult,
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|         uint32_t * pIndex);
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| 
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|     /**
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|    * @brief  Minimum value of absolute values of a floating-point vector.
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|    * @param[in]  pSrc       is input pointer
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|    * @param[in]  blockSize  is the number of samples to process
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|    * @param[out] pResult    is output pointer
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|    */
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|   void arm_absmin_no_idx_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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| /**
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|  * @brief Maximum value of a floating-point vector.
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|  * @param[in]  pSrc       points to the input buffer
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|  * @param[in]  blockSize  length of the input vector
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|  * @param[out] pResult    maximum value returned here
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|  */
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|   void arm_absmax_no_idx_f16(
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|   const float16_t * pSrc,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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| 
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| /**
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|  * @brief Entropy
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|  *
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|  * @param[in]  pSrcA        Array of input values.
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|  * @param[in]  blockSize    Number of samples in the input array.
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|  * @return     Entropy      -Sum(p ln p)
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|  *
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|  */
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| 
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| 
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| float16_t arm_entropy_f16(const float16_t * pSrcA,uint32_t blockSize);
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| 
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| float16_t arm_logsumexp_f16(const float16_t *in, uint32_t blockSize);
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| 
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| /**
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|  * @brief Dot product with log arithmetic
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|  *
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|  * Vectors are containing the log of the samples
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|  *
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|  * @param[in]       pSrcA points to the first input vector
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|  * @param[in]       pSrcB points to the second input vector
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|  * @param[in]       blockSize number of samples in each vector
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|  * @param[in]       pTmpBuffer temporary buffer of length blockSize
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|  * @return The log of the dot product .
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|  *
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|  */
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| 
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| 
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| float16_t arm_logsumexp_dot_prod_f16(const float16_t * pSrcA,
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|   const float16_t * pSrcB,
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|   uint32_t blockSize,
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|   float16_t *pTmpBuffer);
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| 
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| /**
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|  * @brief Kullback-Leibler
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|  *
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|  * @param[in]  pSrcA         Pointer to an array of input values for probability distribution A.
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|  * @param[in]  pSrcB         Pointer to an array of input values for probability distribution B.
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|  * @param[in]  blockSize     Number of samples in the input array.
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|  * @return Kullback-Leibler  Divergence D(A || B)
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|  *
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|  */
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| float16_t arm_kullback_leibler_f16(const float16_t * pSrcA
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|   ,const float16_t * pSrcB
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|   ,uint32_t blockSize);
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| 
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| /**
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|     @brief         Maximum value of a floating-point vector.
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|     @param[in]     pSrc       points to the input vector
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|     @param[in]     blockSize  number of samples in input vector
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|     @param[out]    pResult    maximum value returned here
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|     @return        none
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|    */
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|   void arm_max_no_idx_f16(
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|       const float16_t *pSrc,
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|       uint32_t   blockSize,
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|       float16_t *pResult);
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| 
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| /**
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|     @brief         Minimum value of a floating-point vector.
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|     @param[in]     pSrc       points to the input vector
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|     @param[in]     blockSize  number of samples in input vector
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|     @param[out]    pResult    minimum value returned here
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|     @return        none
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|    */
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|   void arm_min_no_idx_f16(
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|       const float16_t *pSrc,
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|       uint32_t   blockSize,
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|       float16_t *pResult);
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| 
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| /**
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|   @brief         Mean square error between two half precision float vectors.
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|   @param[in]     pSrcA       points to the first input vector
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|   @param[in]     pSrcB       points to the second input vector
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|   @param[in]     blockSize  number of samples in input vector
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|   @param[out]    pResult    mean square error
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|   @return        none 
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| */
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|   
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| void arm_mse_f16(
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|   const float16_t * pSrcA,
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|   const float16_t * pSrcB,
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|         uint32_t blockSize,
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|         float16_t * pResult);
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| 
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| #endif /*defined(ARM_FLOAT16_SUPPORTED)*/
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| #ifdef   __cplusplus
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| }
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| #endif
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| 
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| #endif /* ifndef _STATISTICS_FUNCTIONS_F16_H_ */
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