[SciPy-user] timeseries.convert and structured arrays
Dave Hirschfeld
dave.hirschfeld at gmail.com
Wed Apr 29 10:10:28 EDT 2009
Hi,
I ran into a problem using the convert function with a structured array (see
below) so I just wanted to check if the timeseries function convert is intended
to support structured arrays? If not are there any plans to do so? And if it
does, what am I doing wrong below??
Thanks,
Dave
dates = ts.date_array(start_date=ts.Date('D','2008-01-01'),
end_date=ts.Date('D','2008-12-31'))
#
data = np.array(zip(np.random.rand(366),np.random.rand(366)),
dtype=[('field1',np.float),('field2',np.object)])
#
data = ts.time_series(data,dates)
data.convert('M')
C:\dev\bin\Python25\lib\site-packages\scikits\timeseries\tseries.pyc in
convert(series, freq, func, position, *args, **kwargs)
1999
2000 if series.ndim == 1:
-> 2001 obj = _convert1d(series, freq, func, position, *args, **kwargs)
2002 elif series.ndim == 2:
2003 base = _convert1d(series[:,0], freq, func, position, *args,
**kwargs)
C:\dev\bin\Python25\lib\site-packages\scikits\timeseries\tseries.pyc in
_convert1d(series, freq, func, position, *args, **kwargs)
1909
1910 cdictresult = cseries.TS_convert(data_, from_freq, to_freq, position,
-> 1911 int(start_date), mask_)
1912 start_date = Date(freq=to_freq, value=cdictresult['startindex'])
1913 data_ = masked_array(cdictresult['values'], mask=cdictresult['mask'])
ValueError: data type must provide an itemsize
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