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Series.cov and Series.corr yield invalid results for complex-typed argument #45

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quasilyte opened this issue Sep 7, 2018 · 0 comments

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quasilyte commented Sep 7, 2018

Given these series:

S1 = pandas.Series([1.0, -1.5]),
S2 = pandas.Series([complex(-4.5, 1.0), complex(3.0, 1.5)])

The hpat and "normal" functions return different results:

# corr
hpat_func(S1, S2) # => (-1+0j)
test_impl(S1, S2) # => (-0.9977851578566089+0.06651901052377393j)

# cov
hpat_func(S1, S2) # => (-9.375-0.625j)
test_impl(S1, S2) # => (-9.375+0.625j)

Functions that should be fixes are probably _column_corr_impl and _column_cov_impl.

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