Subscripted assignment dimension mismatch.

Hi all i am using the fallowing code for the svm classification

svmstruct=svmtrain(PosNegF,group); for l=1:999

                       abc= svmclassify(svmstruct, DB1(l,:)) 

                       Fset(l,:) =[ l,abc];
end
here DB is the Feature matrix of the 999 images.

Now when first time i execute this code it work fine, but when next time i train the SVM and then run again this code it give the Subscripted assignment dimension mismatch. error. please help me. Thanks in advance

[Muruganandham Subramanian]

Because, the result or data (svmstruct) will be stored in workspace. To avoid this, you can do with command before this by adding 'clear svmstruct'.

[M@lik Ali]

i try clear svmstruct but still the error is same. please help me..

[M@lik Ali]

At every iteration of loop svmclassify return 1 or 0 only.

then why it giving the dimension mismatch error. even same for the first time.

Answer 1

[Matt J]

execute the command dbstop if error at the command line. Then rerun your code. When the error occurs and you get the K>> prompt, check the value/sizes of abc and F.