MATLAB: Adding zero column to matrix

matrixmatrix manipulation

Hi All,
Currently I'm facing an error with a Matlab code.
In my problem I have Two matrix v and stateHit
v =
 0.0044    0.1620    0.0272    0.0029    0.1610    0.6035    0.0151    0.0239
 0.0044    0.1639    0.0275    0.0029    0.1606    0.6019    0.0150    0.0238
 0.0043    0.1657    0.0279    0.0030    0.1601    0.6002    0.0150    0.0238
stateHit =
     1     0     0     0
     1     0     0     0
     1     0     0     0
I want to do
difMatrix= v(1:length(stateHit),:) – cpustateHit;
??? Error using ==> minus Matrix dimensions must agree.
I want add zero columns to stateHit.
Could please give an example how can add zero columns to stateHit so that matrix dimension of v and stateHit became the same and I do that operations
difMatrix= v(1:length(stateHit),:) – cpustateHit;
many thanks in advance
SM

Best Answer

Hi,
if it's just that you want to enlarge "stateHit", you could do
if size(stateHit,2)<size(v, 2)
  % v has more columns
  stateHit(1, size(v,2)) = 0;
end
Titus
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