Dear all,
I use numpy version 1.5.1 which is installed by default when I do sudo
apt-get install numpy on ubuntu 11.04.
but it seems that for np.ma.concatenate(arrays, axis), the axis parameter is
not working?
In [460]: a=np.arange(10)
In [461]: a=np.ma.masked_array(a,a<3)
In [462]: a
Out[462]:
masked_array(data = [-- -- -- 3 4 5 6 7 8 9],
mask = [ True True True False False False False False False
False],
fill_value = 999999)
In [463]: b=np.arange(10)
In [464]: b=np.ma.masked_array(a,b>7)
In [465]: b
Out[465]:
masked_array(data = [-- -- -- 3 4 5 6 7 -- --],
mask = [ True True True False False False False False True
True],
fill_value = 999999)
In [466]: c=np.ma.concatenate((a,b),axis=0)
In [467]: c
Out[467]:
masked_array(data = [-- -- -- 3 4 5 6 7 8 9 -- -- -- 3 4 5 6 7 -- --],
mask = [ True True True False False False False False False
False True True
True False False False False False True True],
fill_value = 999999)
In [468]: c.shape
Out[468]: (20,)
In [469]: c=np.ma.concatenate((a,b),axis=1)
In [470]: c.shape
Out[470]: (20,)
cheers,
Chao
--
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Chao YUE
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
UMR 1572 CEA-CNRS-UVSQ
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Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16
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