I think your problem is in the algorithm, not just the Perl code.

You're calculating deviations from the average via ($score - $avg) as you go along. But this won't work because the "average" isn't the true average until you're done counting the data! I think that what you want to do is:
1. Read in all of the data, calculate $number and $sum as you go
2. Calculate $avg from the final $number and $sum
3. Loop through the data again and calculate $totd as you go

Or, you can use the module Statistics::Descriptive to do it for you. Unless this is a homework assignment...

buckaduck

In reply to Re: Re: (jcwren) Re: Still confused by buckaduck
in thread Still confused by yabba

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