Your code looks rather complicated but it is difficult to guess what you want to achieve without knowing more about the underlying problem you want to solve. For example, I find the line 

if ( ($ta-$a) < $threshold && ($tc-$c) < $threshold)

[download]

strange as I would expect some kind of abs($ta-$a) < $threshold instead. But without knowing more detail it is difficult to comment more specifically.

In reply to Re: problem in for loop by hdb
in thread problem in for loop by MVRS

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