[Numpy-discussion] List of arrays failing index(), remove() etc
mfm24
murfitt at gmail.com
Wed May 7 20:14:08 EDT 2014
I'm having a problem I haven't seen elsewhere (and apologies if it has been
answered before).
I see the following behavior (copied verbatim from a python session):
Python 2.7.4 (default, Apr 6 2013, 19:55:15) [MSC v.1500 64 bit (AMD64)] on
win32Type "help", "copyright", "credits" or "license" for more
information.>>> import numpy as np>>> x=[[np.zeros(10)] for i in
range(10)]>>> x.index(x[0])0>>> x.index(x[1])Traceback (most recent call
last): File "", line 1, in ValueError: The truth value of an array with
more than one element is ambiguous. Use a.any() or a.all()>>>
x[1].append(np.zeros(10))>>> x.index(x[1])1
Any ideas why I see a ValueError when trying to find the index of a list
containing a single ndarray?
-Matt
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