56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
#pragma once
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#include <cstdint> //uint64_t
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//#include <stdexcept> // std::runtime_error
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#include "utils/vector.h"
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#include "utils/matrix.h"
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#include "sum_serial.h"
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namespace numerics::detail{
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// ---------------- Matrix -> Scalar ----------------
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template <typename T>
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T mean_serial(const utils::Matrix<T>& A) {
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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T sum = detail::sum_serial(A);
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sum /= static_cast<T>(rows*cols);
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return sum;
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}
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// ---------------- Vector -> Scalar ----------------
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template <typename T>
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T mean_serial(const utils::Vector<T>& v) {
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const uint64_t N = v.size();
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T sum = detail::sum_serial(v);
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sum /= static_cast<T>(N);
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return sum;
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}
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// ---------------- Matrix -> Vector ----------------
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template <typename T>
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utils::Vector<T> mean_rowwise_serial(const utils::Matrix<T>& A) {
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const T cols = static_cast<T>(A.cols());
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utils::Vector<T> sum = detail::sum_rowwise_serial(A);
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const uint64_t N = sum.size();
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for (uint64_t i = 0; i < N; ++i){
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sum[i] /= cols;
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}
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return sum;
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}
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template <typename T>
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utils::Vector<T> mean_colwise_serial(const utils::Matrix<T>& A) {
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const T rows = static_cast<T>(A.rows());
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utils::Vector<T> sum = detail::sum_colwise_serial(A);
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const uint64_t N = sum.size();
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for (uint64_t i = 0; i < N; ++i){
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sum[i] /= rows;
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}
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return sum;
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}
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} // namespace numerics
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