8000 GradientBoosting casts y to float64 in each tree · Issue #9098 · scikit-learn/scikit-learn · GitHub
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GradientBoosting casts y to float64 in each tree #9098
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GradientBoosting casts y to float64 in each tree#9098
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0.21
@amueller

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@amueller
amueller
opened on Jun 10, 2017

I think currently GradientBoosting is casting y to float32 in fit in check_X_y, and then, if I understand correctly, each tree will cast y to float64.
That seems like a bunch of extra copies.
Maybe @raghavrv @jmschrei @glouppe can confirm or deny?

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