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ENH: Add engine keyword argument to expanding.apply to leverage Numba #30936

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mroeschke opened this issue Jan 12, 2020 · 0 comments · Fixed by #30937
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ENH: Add engine keyword argument to expanding.apply to leverage Numba #30936

mroeschke opened this issue Jan 12, 2020 · 0 comments · Fixed by #30937
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Enhancement Window rolling, ewma, expanding
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1.0.0

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@mroeschke
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In 1.0, we're adding a engine keyword argument to rolling.apply to run the routine using Cython or Numba.

By natural extension, we should allow expanding.apply to utilize Numba by adding the same engine keyword argument to expanding.apply
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Enhancement Window rolling, ewma, expanding
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ENH: Add engine keyword to expanding.apply to utilize Numba mroeschke/pandas
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@jreback @mroeschke