in reply to DBD::Chart::Plot ??

Did you check the return value of the setpoints function? As per the docs it returns a positive integer upon success and an undef on failure.

Update I tried your code and it doesn't work for me either. The problem is with the plot function which doesn't return anything.

CountZero

"If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law

In Section Seekers of Perl Wisdom