statistics in one line

perl -MStatistics::Descriptive -alne 'my $stat = Statistics::Descriptive::Full->new; $stat->add_data(@F[1..4]); print $stat->variance' filename
In this example, file contains five columns where first column is text. Variance is calculated for columns 2 - 5 by using perl module Statistics::Descriptive. There are many more statistical functions available in the module.
Sample Output
$ cat test
A	25	26	24	28
B	10	20	30	40
C	10	20	10	20

$ perl -MStatistics::Descriptive -alne 'my $stat = Statistics::Descriptive::Full->new; $stat->add_data(@F[1..4]); print $stat->variance' test

2.91666666666667
166.666666666667
33.3333333333333

1
2010-04-02 21:16:12

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