[Numpy-discussion] tostring() for array rows
Christopher Barker
Chris.Barker at noaa.gov
Tue Oct 6 16:39:34 EDT 2009
josef.pktd at gmail.com wrote:
> If I have a structured or a regular array, is the use of strides in
> the following always correct for the length of the row memory?
>
> I would like to do tostring() but on each row, by creating a string
> view of the memory in a 1d array.
Maybe I'm missing what you want, but why not just:
In [15]: tmp
Out[15]:
array([[ 1.07810097, -1.74157351, 0.29740878],
[-0.16786436, 0.45752272, -0.8038045 ],
[-0.17195028, -1.16753882, 0.04329128],
[ 0.45460137, -0.44584955, -0.77140505]])
In [16]: rows = []
In [17]: for r in range(tmp.shape[0]):
rows.append(tmp[r,:].tostring())
....:
In [19]: rows
Out[19]:
['?\xf1?\xe6\xce\x1f9\xce\xbf\xfb\xdd|.\xc85Z?\xd3\x08\xbe\xd6\xb7\xb6\xe8',
'\xbf\xc5|\x94Sx\x92\x18?\xddH\r\\T\xfbT\xbf\xe9\xb8\xc45\xff\x92\xdf',
'\xbf\xc6\x02w\x82\x18i\xaf\xbf\xf2\xae=/\xfe\xff\x0b?\xa6*FD\xae\xd1F',
'?\xdd\x180Z\xcet\xa5\xbf\xdc\x88\xcc\x8a\x8c\x8b\xe7\xbf\xe8\xafY\xa2\xf8\xac
']
in general, you can let numpy worry about the strides, etc.
-Chris
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Christopher Barker, Ph.D.
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