[Numpy-discussion] numarray iterator question
Neal Becker
ndbecker2@gmail....
Wed Mar 10 18:19:07 CST 2010
This is a bit confusing to me:
import numpy as np
u = np.ones ((3,3))
for u_row in u:
u_row = u_row * 2 << doesn't work
print u
[[ 1. 1. 1.]
[ 1. 1. 1.]
[ 1. 1. 1.]]
for u_row in u:
u_row *= 2 << does work
[[ 2. 2. 2.]
[ 2. 2. 2.]
[ 2. 2. 2.]]
Naively, I'm thinking a *= b === a = a * b.
Is this behavior expected? I'm asking because I really want:
u_row = my_func (u_row)
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