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Complex64 implicitly converted to Complex128 #10952

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sklam opened this issue Aug 31, 2015 · 1 comment
Closed

Complex64 implicitly converted to Complex128 #10952

sklam opened this issue Aug 31, 2015 · 1 comment
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Complex Complex Numbers Dtype Conversions Unexpected or buggy dtype conversions
Milestone
0.17.0

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@sklam
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sklam commented Aug 31, 2015

NumPy array of complex64 is implicitly converted to complex128 when used as data for DataFrame:

>>> a=np.random.randn(10).astype(np.complex64)
>>> a.dtype
dtype('complex64')
>>> pd.DataFrame({'a': a}).a.dtype
dtype('complex128')
>>>

The problem does not affect Series:

In [7]: Series(a).dtype
Out[7]: dtype('complex64')
@jreback jreback added Dtype Conversions Unexpected or buggy dtype conversions Complex Complex Numbers Difficulty Intermediate labels Aug 31, 2015
@jreback jreback added this to the Next Major Release milestone Aug 31, 2015
@ajcr ajcr mentioned this issue Sep 2, 2015
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@jreback jreback modified the milestones: 0.17.0, Next Major Release Sep 2, 2015
@jreback
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jreback commented Sep 3, 2015

closed by #10975

@jreback jreback closed this as completed Sep 3, 2015
@jreback jreback mentioned this issue Sep 3, 2015
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Complex Complex Numbers Dtype Conversions Unexpected or buggy dtype conversions
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0.17.0
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