histogram: fix test for downsampling histograms #81
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The downsample() test uses both an incrementing factor for the downsampling as well as a mutable reference as the baseline. This makes the effective downsampling rate increase at a non-linear rate (1, 3, 6, ..). Fix by cloning the histogram and using a non-mutable reference as the baseline.
brayniac
approved these changes
Oct 18, 2023
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The downsample() test uses both an incrementing factor for the
downsampling as well as a mutable reference as the baseline.
This makes the effective downsampling rate increase at a non-linear
rate (1, 3, 6, ..). Fix by cloning the histogram and using a non-mutable
reference as the baseline.