2008/11/17 Timmie <[EMAIL PROTECTED]>: > what is the difference between ma.masked and ma.masked_array?
I don't know the answer to that question, but both appear to be some kind of alias for the MaskedArray class and not part of the API. > I am using this expression along with the scikit.timeseries: > > series[(series.years>2000)&(series.years<2010)]=np.ma.masked > > => but now, my series does not get masked. > > Rather the selected values (left part of the '=') get set to 0.0. > > But if I use > > arr_masked = \ > ma.masked_array(series, series[(series.years>2000)&(series.years<2010)]) > > the masked is applied sucessfully. I think you should get the effect you want using masked_where >>> import numpy.ma as ma >>> masked_series = ma.masked_where((series.years>2000) & (series.years<2010), >>> series) There's some in progress documentation in the Numpy doc app at http://docs.scipy.org/numpy/docs/numpy.ma.core.masked_where/ that hasn't yet made it's way to the reference manual http://docs.scipy.org/doc/numpy/reference/ Cheers, Scott _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
