How to Rectify the "index must be a positive integer or logical" Error in my code?

Hi....Everybody... How are you?

??? Attempted to access dompol1(-1,:); index must be a positive integer or logical.

Error in ==> DEIMGC at 12 D1=dompol1(fraco(4),:);

Error in ==> VQWTVARWTQT at 486 [cimg1g]=deimgc(vqcode7g,dompool3g,gsize,scale);

This is Error in my code? How to correct that Error in my code.

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Answer 1

[Matt J]

Stop using negative numbers to index an array, like -1 in the following

 dompol1(-1,:)

It doesn't correspond to any array location.

[PRIYANGA]

ok Sir.

But, how to convert the value negative to positive and pass that value through the function?

I have to calculate the vqcode7r,vqcode7g,vqcode7b values.. the result of the R G B any one is contain the negative value. how to stop the negative values occur in the calculation.

[PRIYANGA]

Thank You sir.

Answer 2

[Muruganandham Subramanian]

Use abs() command

[PRIYANGA]

Thank you sir