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Python Pandas: Get index of rows which column matches certain value
...need ordinal index values, you can compute them using np.flatnonzero:
In [110]: np.flatnonzero(df['BoolCol'])
Out[112]: array([0, 3, 4])
Use df.iloc to select rows by ordinal index:
In [113]: df.iloc[np.flatnonzero(df['BoolCol'])]
Out[113]:
BoolCol
10 True
40 True
50 True
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Community♦
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answered Jul 17 '16 at 7:02
Bartho BernsmannBartho Bernsmann
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John GilmoreJohn Gilmore
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Is it possible to allow didSet to be called during initialization in Swift?
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edited Nov 20 '19 at 11:46
Nik Kov
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