Error using + Matrix dimensions must agree

Hello all! I keep on getting this error in my model:

Error using +

Matrix dimensions must agree.

It refers to this line:

 parms = chol(results.cov+0.001*eye(size(parm)))'*randn(size(parm)) + parm;

I am not very experienced in MATLAB programming, can anybody see anything wrong?

Thank you,

Oana

Answer 1

[Wayne King]

You have to look at the size of results.cov and parm. Are they compatible for addition?

You can use

   size(results.cov)
   size(parm)

[Oana]

Thank you, I have checked.

I get

198 198

for the first one

and

198 1

for the second one.

Is there any fix to it?

[Walter Roberson]

What result do you want? Do you want parm(K) added to each results.cov(K,:) or do you want it added to each results.cov(:,K) or do you want the results.cov to become 198 x 1 ?