On Aug 31, 2011, at 4:24 PM, Jean-Baptiste Marquette wrote:
>
> Hi Pierre,
>
>>
>> On Aug 31, 2011, at 3:40 PM, Jean-Baptiste Marquette wrote:
>>> Traceback (most recent call last):
>>> File "/Users/marquett/workspace/Distort/src/StatsSep.py", line 44, in
>>> <module>
>>> np.savetxt(Table, StatsAll, delimiter=' ', fmt=['%15s %.5f %.5f %5d %.4f
>>> %.4f'])
>>> File
>>> "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/numpy/lib/npyio.py",
>>> line 979, in savetxt
>>> fh.write(asbytes(format % tuple(row) + newline))
>>> TypeError: not enough arguments for format string
>>
>> Without knowing StatsAll, it ain't easy… From the exception message, we
>> could expect that one of rows is empty or as less than the 6 elements
>> required by your format string.
>> If you're using IPython, switch to debugger mode (pdb), then inspect row and
>> format to find out the content of the offending line.
>
> Here is a (short) sample of StatsAll:
>
> [[('bs3000k.cat', 280.60341, -7.09118, 9480, 0.2057, 0.14)]
Have you tried the debugger as I suggested ? There must be a line somewhere
that doesn't follow the format (the first one?)
>>
>>> I struggled with various unsuccessful fmt syntaxes, and the numpy doc is
>>> very discrete about that topic:
>>>
>>> fmt : string or sequence of strings
>>>
>>> A single format (%10.5f), a sequence of formats
>>
>> Looks clear enough to me… But yes, a comment in the code shows that "
>> `fmt` can be a string with multiple insertion points or a list of formats.
>> E.g. '%10.5f\t%10d' or ('%10.5f', '$10d')" (so we should probably update the
>> doc to this regard)
>
> The command with parentheses:
>
> np.savetxt(Table, StatsAll, delimiter=' ', fmt=('%15s %.5f %.5f %5d
> %.4f %.4f'))
>
> fails as well, but with a different error:
Well, either you use 1 string
fmt="%15s %.5f %.5f %5d %.4f %.4f"
or you use a list of strings
fmt=("%15s", "%.5f", "%.5f", "%5d", "%.4f", "%.4f")
>
> Plus, this one:
>
> np.savetxt(Table, StatsAll, delimiter=' ', fmt=('%15s', '%.5f',
> '%.5f', '%5d', '%.4f', '%.4f'))
>
> yields:
>
> Traceback (most recent call last):
> File "/Users/marquett/workspace/Distort/src/StatsSep.py", line 44, in
> <module>
> np.savetxt(Table, StatsAll, delimiter=' ', fmt=('%15s', '%.5f', '%.5f',
> '%5d', '%.4f', '%.4f'))
> File
> "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/numpy/lib/npyio.py",
> line 966, in savetxt
> raise AttributeError('fmt has wrong shape. %s' % str(fmt))
> AttributeError: fmt has wrong shape. ('%15s', '%.5f', '%.5f', '%5d', '%.4f',
> '%.4f')
try
fmt=[('%15s', '%.5f', '%.5f', '%5d', '%.4f', '%.4f')]
> Quite puzzling...
> Should I switch to the I/O of asciitable package ?
As you wish. The easiest might be to write the file yourself.:
>>> fmt = "%15s %.5f %.5f %5d %.4f %.4f\n"
>>> f=open(Table,'r')
>>> for line in StatsAll:
>>> f.write(fmt % line)
>>> f.close()
or something like that
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