add new columns to the existing matrix

I have a 64*63 matrix.now i want to add new column to the end of the all existing 63 columns with all 0 values.i.e I want to make the matrix of 64*64

Answer 1

[Andrei Bobrov]

a - your array < 64 x 63 double >

out = [a zeros(size(a,1),1)];

or

a(64,64) = 0;

[Jan]

While the first version is more mechanical translation of "add a new column consisting of zeros" from English to Matlab, the second method is faster and looks much leaner (more "matlabish").

The decision which version is "better" depends on your needs. If you do not "speak Matlab very fluently", the first version might be easier to debug.

[Image Analyst]

However, I'd use

out = [a zeros(size(a,1),1)];

in the first case, to get the number of rows and get rid of the warning message that's produced if you use size(a), which gives a 1x2 array.

[Andrei Bobrov]

Oh! My typo. Thank you Image Analyst.