24.02.1
MeanStdDev.cpp
Go to the documentation of this file.
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/*
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* Copyright (c) 2017-2018 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "
MeanStdDev.h
"
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namespace
arm_compute
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{
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namespace
test
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{
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namespace
validation
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{
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namespace
reference
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{
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template
<
typename
T>
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std::pair<float, float>
mean_and_standard_deviation
(
const
SimpleTensor<T>
&in)
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{
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const
int
num_elements = in.
num_elements
();
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// Calculate mean
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float
mean =
std::accumulate
(in.
data
(), in.
data
() + num_elements, 0.f) / num_elements;
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// Calculate standard deviation
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float
std_dev =
std::accumulate
(in.
data
(), in.
data
() + num_elements, 0.f, [&mean](
float
a,
float
b
)
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{
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return a + (mean - b) * (mean - b);
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});
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std_dev = std::sqrt(std_dev / num_elements);
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return
std::make_pair(mean, std_dev);
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}
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template
std::pair<float, float>
mean_and_standard_deviation
(
const
SimpleTensor<uint8_t>
&in);
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template
std::pair<float, float>
mean_and_standard_deviation
(
const
SimpleTensor<half>
&in);
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template
std::pair<float, float>
mean_and_standard_deviation
(
const
SimpleTensor<float>
&in);
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}
// namespace reference
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}
// namespace validation
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}
// namespace test
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}
// namespace arm_compute
arm_compute::test::validation::reference::mean_and_standard_deviation
std::pair< float, float > mean_and_standard_deviation(const SimpleTensor< T > &in)
Definition:
MeanStdDev.cpp:35
arm_compute::test::validation::reference::accumulate
SimpleTensor< T2 > accumulate(const SimpleTensor< T1 > &src, DataType output_data_type)
Definition:
Accumulate.cpp:38
arm_compute::test::SimpleTensor::num_elements
int num_elements() const override
Number of elements of the tensor.
Definition:
SimpleTensor.h:424
arm_compute::test::SimpleTensor
Simple tensor object that stores elements in a consecutive chunk of memory.
Definition:
SimpleTensor.h:58
arm_compute::test::validation::b
SimpleTensor< float > b
Definition:
DFT.cpp:157
arm_compute
Copyright (c) 2017-2024 Arm Limited.
Definition:
introduction.dox:24
arm_compute::test::SimpleTensor::data
const T * data() const
Constant pointer to the underlying buffer.
Definition:
SimpleTensor.h:436
MeanStdDev.h
tests
validation
reference
MeanStdDev.cpp
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