How to reshape vector into matrix

[pankaj kumarParticipant]

I have attached one word doc and like to learn to convert a given vector pr into matrix in particular fashion.

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[cKKeymaster]

You can use reshape() or vec2mat(). The latter one is avbl in communications toolbox.

x = 1:12;
m = reshape(x,3,4)
m =
     1     4     7    10
     2     5     8    11
     3     6     9    12

Reshape fills matrix’s columns first (vec2mat does rows first). If rows need to be filled, the matrix can later be transposed. To reshape a vector into a matrix of size MxN using reshape(), the vector must have exactly M*N elements (vec2mat doesn’t need that).

• This reply was modified 10 years ago by  cK.

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