[Numpy-discussion] ndarray with double comparison
Chao YUE
chaoyuejoy at gmail.com
Thu Oct 13 12:13:12 EDT 2011
Dear all,
sorry for this stupid question but I cannot find it in numpy tutorial or
google.
suppose I have a=np.arange(11).
In [32]: a < 8
Out[32]:
array([ True, True, True, True, True, True, True, True, False,
False, False], dtype=bool)
In [34]: a > 4
Out[34]:
array([False, False, False, False, False, True, True, True, True,
True, True], dtype=bool)
how can I have boolean index like 4 < a < 8
np.where(a>4 and a<8);or plainly input "a>4 and a<8" doesn't work.
thanks,
Chao
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Chao YUE
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