compute_range_statistic()

std::vector< double > MayaFlux::Yantra::compute_range_statistic	(	std::span< const double >	data,
		const size_t	num_windows,
		const uint32_t	hop_size,
		const uint32_t	window_size
	)

Compute range statistic using zero-copy processing.

Definition at line 685 of file AnalysisHelper.cpp.

{
    std::vector<double> range_values(num_windows);
 
    std::vector<size_t> indices(num_windows);
    std::iota(indices.begin(), indices.end(), 0);
 
    std::for_each(std::execution::par_unseq, indices.begin(), indices.end(),
        [&](size_t i) {
            const size_t start_idx = i * hop_size;
            const size_t end_idx = std::min(start_idx + window_size, data.size());
            auto window = data.subspan(start_idx, end_idx - start_idx);
 
            auto [min_it, max_it] = std::ranges::minmax_element(window);
            range_values[i] = *max_it - *min_it;
        });
 
    return range_values;
}

References compute_range_statistic().

Referenced by compute_range_statistic(), and MayaFlux::Yantra::StatisticalAnalyzer< InputType, OutputType >::compute_statistical_values().

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