Error using + Matrix dimensions must agree

2013 3 18
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0 个投票

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

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回答（1 个）

Wayne King
Wayne King 2013-3-18

0 个投票

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)

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Oana
Oana 2013-3-18
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
Walter Roberson 2013-3-18
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 ?

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Oana
Oana
2013-3-18

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