[SciPy-user] New bmat constructor in SciPy
Pearu Peterson
pearu at scipy.org
Tue Sep 23 15:09:56 EDT 2003
On Tue, 23 Sep 2003, Nils Wagner wrote:
> In this context it would be nice to have a tool to remove
> rows and columns of a matrix
> In Matlab:
>
> > > a=rand(4,4)
>
> a =
>
> 0.9501 0.8913 0.8214 0.9218
> 0.2311 0.7621 0.4447 0.7382
> 0.6068 0.4565 0.6154 0.1763
> 0.4860 0.0185 0.7919 0.4057
>
> use
>
> > > a(:,2)=[]
I wonder if in Python
>>> del a[:,2]
would be possible. Currently Numeric raises ValueError, numarray raises
TypeError and
m=mat(a); del a[:,2]
gives AttributeError: __delitem__ not found.
Pearu
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