[Numpy-discussion] masked arrays as array indices
Ernest Adrogué
eadrogue@gmx....
Mon Sep 21 11:05:19 CDT 2009
Hello there,
Given a masked array such as this one:
In [19]: x = np.ma.masked_equal([-1, -1, 0, -1, 2], -1)
In [20]: x
Out[20]:
masked_array(data = [-- -- 0 -- 2],
mask = [ True True False True False],
fill_value = 999999)
When you make an assignemnt in the vein of x[x == 0] = 25
the result can be a bit puzzling:
In [21]: x[x == 0] = 25
In [22]: x
Out[22]:
masked_array(data = [25 25 25 25 2],
mask = [False False False False False],
fill_value = 999999)
Is this the correct result or have I found a bug?
Cheers.
--
Ernest
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