Re: constructing a matrix from a vector

[James Sherman Jr.]

On Wed, Oct 19, 2011 at 12:02 AM, ishi soichi <address@hidden> wrote:

hi. I have a question about matrices.

say, we have a vector,

(1 2 3)

Can we construct a matrix like

1 2 3

1 2 3

1 2 3

1 2 3

?

certainly it's possible if I use normal loop algorithms. But I rather use Octave capability to manipulate matrices.

soichi

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The function you're looking for is repmat.

In your example, you could do:

repmat([1 2 3], [4 1])

type "help repmat" for more info.

Hope this helps.