Finding index of a value in the matrix

I have a matrix "A" of size "n*2"

1st column--phase

2nd column--magnitude

I have to find the row index of a row which have particular phase (targetPhase) and maximum magnitude

I have used this code:

range=find( abs(A(:,1) - targetPhase) < 2 ); % targetPhase is the required phase

Index = set( find( max( abs(A(range,2) ) ) );

I know there is a mistake in second line

Could you please help to solve this problem with a short code

Answer 1

[Thiago Henrique Gomes Lobato]

This is probably the shortest you can get

range=find( abs(A(:,1) - targetPhase) < 2 );  % targetPhase is the required phase
[~,IndexMax] = max( abs(A(range,2) ) );
Index        = range(IndexMax);

[Vinay Killamsetty]

Thank you very much