Perl is one of script languages I confidently use it daily. I love it, even addict to it. I use it for data manipulation, basic statistic. There are a number of perl modules dedicated to number crash:
Number::Format
Statistics::Basic
Statistics::Descriptive
Statistics::TTest
Statistics::Distribution
rand() and Math::Rand
cpan2rpm is nice tool to install perl model as rpm in fedora (my linux)
My favourate module is Statistics::Basic. In script, call it by
use Statistics::Basic qw(:all);
here are a few simple uses
my $v1 = vector(4,6,9); my $v2 = vector(1,2,3); my $mean = mean($v2); my $var = variance ($v2); my $std = stddev($v1); my $cov = covariance( $v1, $v2 ); my $cor = correlation( $v1, $v2 );
to install a perl module at your home directory
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% perl Makefile.PL PREFIX=/usr/home/USERNAME/perl_mod
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% make
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% make test
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% make install
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% make clean
in fact, you can simply copy Basic dir and Basic.pm to ~/perl_mod/
to use your local module, cal this first
use lib “$ENV{‘HOME’}/perl_mod”;
This paper gave a comprehensive review on perl application in statitics (Using Perl for Statistics: Data Processing and Statistical Computing).
