Hmmm, you probably want this: 
while ( <fh> ) {
    ($a,$b)=split/,/;
    push @AoA, [ $a, $b ];
}

[download]
Update: you also probably need to chomp your data lines.

In reply to Re: plotting roc curve using roc package by Laurent_R
in thread plotting roc curve using roc package by numita

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