setting and getting column in numpymatrix

[Boris Borcic]

devnew at gmail.com wrote:
> hi
> i am looking for an efficient way to get a specific column of a
> numpy.matrix ..
> also i want to set  a column  of the matrix with a given set of
> values ..i couldn't find any methods for this in matrix doc..do i have
> to write   the functions from scratch?
> 
> TIA
> dn
> 

 >>> from numpy import matrix
 >>> x=matrix([[1,2,3],[4,5,6],[7,8,9]])
 >>> x[:,1]
matrix([[2],
         [5],
         [8]])
 >>> x[:,1].transpose()
matrix([[2, 5, 8]])
 >>> matrix([11,12,13]).transpose()
matrix([[11],
         [12],
         [13]])
 >>> x[:,1] = matrix([11,12,13]).transpose()
 >>> x
matrix([[ 1, 11,  3],
         [ 4, 12,  6],
         [ 7, 13,  9]])