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skip NaN in extent calculation #166

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skip NaN in extent calculation #166

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@rafaqz rafaqz commented Sep 25, 2024

This PR fixes the problem where NaNs win over other coordinates to make NaN extents that don't work anywhere. Or do work in DimensionalData.jl and because NaN comparisons always return false, it just selects the maximum possible extent.

To do this I switch extrema to _nan_free_extrema, which turns out to be faster anyway.

This PR will be coupled with a PR for Extents.union and Extents.intersection to behave the same way, and for DimensionalData.jl to check for NaN extents for the rare few that still get through.

@rafaqz rafaqz changed the title skip nan in extent calculation skip NaN in extent calculation Sep 25, 2024
@rafaqz rafaqz requested a review from evetion September 25, 2024 22:01
test/test_wrappers.jl Outdated Show resolved Hide resolved
Co-authored-by: Anshul Singhvi <[email protected]>
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rafaqz commented Sep 25, 2024

The weird thing about this (that I just realised for Extents.jl as well) is that for (X=NaN, Y=1000.0) the 1000.0 will still effect the final Y extent. Maybe this is an extreme edge case and doesn't matter much, I'm not sure.

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rafaqz commented Nov 5, 2024

@evetion would be good to get a review and merge on this

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