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Diffstat (limited to 'tests/validation_new/CPP/MeanStdDev.cpp')
-rw-r--r-- | tests/validation_new/CPP/MeanStdDev.cpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/validation_new/CPP/MeanStdDev.cpp b/tests/validation_new/CPP/MeanStdDev.cpp new file mode 100644 index 0000000000..4a39b13d56 --- /dev/null +++ b/tests/validation_new/CPP/MeanStdDev.cpp @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "MeanStdDev.h" + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +template <typename T> +std::pair<float, float> mean_and_standard_deviation(const SimpleTensor<T> &in) +{ + const int num_elements = in.num_elements(); + + // Calculate mean + float mean = std::accumulate(in.data(), in.data() + num_elements, 0.f) / num_elements; + + // Calculate standard deviation + float std_dev = std::accumulate(in.data(), in.data() + num_elements, 0.f, [&mean](float a, float b) + { + return a + (mean - b) * (mean - b); + }); + + std_dev = std::sqrt(std_dev / num_elements); + + return std::make_pair(mean, std_dev); +} + +template std::pair<float, float> mean_and_standard_deviation(const SimpleTensor<uint8_t> &in); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute |