/usr/share/perl5/Statistics/Basic.pm is in libstatistics-basic-perl 1.6601-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | package Statistics::Basic;
use strict;
use warnings;
use Carp;
use Number::Format;
our $VERSION = '1.6601';
our $fmt = Number::Format->new;
our( $NOFILL, $DEBUG, $IPRES, $TOLER, $UNBIAS );
BEGIN {
$NOFILL = exists($ENV{NOFILL}) ? $ENV{NOFILL} : 0;
$DEBUG = exists($ENV{DEBUG}) ? $ENV{DEBUG} : 0;
$IPRES = exists($ENV{IPRES}) ? $ENV{IPRES} : 2;
$TOLER = $ENV{TOLER} if exists $ENV{TOLER};
}
use base 'Exporter';
our @EXPORT_OK = (qw(
vector computed
mean average avg
median
mode
variance var
stddev
covariance cov
correlation cor corr
leastsquarefit LSF lsf
handle_missing_values handle_missing
));
our %EXPORT_TAGS = ( all => \@EXPORT_OK );
sub import {
my @special = ();
@_ = grep { m/^(ignore_env|nofill|debug|ipres|toler|unbias)(?:=([\d\.\-_]+))?\z/i
? do {push @special, [lc($1), $2]; 0} : 1 }
@_;
if( grep {$_->[0] =~ m/ignore_env/} @special ) {
delete $ENV{TOLER};
$NOFILL = 0;
$DEBUG = 0;
$IPRES = 2;
$TOLER = undef;
$UNBIAS = 0;
}
for( grep {$_->[0] !~ m/ignore_env/} @special ) {
my ($k, $v) = @$_;
$v = eval $v if defined $v; ## no critic
if( lc($k) eq "ipres" ) {
$v = 2 unless defined($v);
croak "bad ipres value ($v)" unless $v >= 0;
$IPRES = $v;
} elsif( lc($k) eq "toler" ) {
if( defined $v ) {
croak "bad toler value($v)" unless $v >= 0;
$TOLER = $v;
} else {
$TOLER = undef;
}
} else {
no strict 'refs'; ## no critic
${uc($k)} = defined($v) ? $v : 1; ## no critic
}
}
my $pull = q {
use Statistics::Basic::Covariance;
use Statistics::Basic::Correlation;
use Statistics::Basic::LeastSquareFit;
use Statistics::Basic::Mean;
use Statistics::Basic::Median;
use Statistics::Basic::Mode;
use Statistics::Basic::StdDev;
use Statistics::Basic::Variance;
use Statistics::Basic::Vector;
use Statistics::Basic::ComputedVector;
1;
};
eval $pull or die "problem loading base modules: $@"; ## no critic
return __PACKAGE__->export_to_level(1, @_);
}
sub computed { my $r = eval { Statistics::Basic::ComputedVector->new(@_) } or croak $@; return $r }
sub vector { my $r = eval { Statistics::Basic::Vector->new(@_) } or croak $@; return $r }
sub mean { my $r = eval { Statistics::Basic::Mean->new(@_) } or croak $@; return $r }
sub median { my $r = eval { Statistics::Basic::Median->new(@_) } or croak $@; return $r }
sub mode { my $r = eval { Statistics::Basic::Mode->new(@_) } or croak $@; return $r }
sub variance { my $r = eval { Statistics::Basic::Variance->new(@_) } or croak $@; return $r }
sub stddev { my $r = eval { Statistics::Basic::StdDev->new(@_) } or croak $@; return $r }
sub covariance { my $r = eval { Statistics::Basic::Covariance->new( $_[0], $_[1] ) } or croak $@; return $r }
sub correlation { my $r = eval { Statistics::Basic::Correlation->new( $_[0], $_[1] ) } or croak $@; return $r }
sub leastsquarefit { my $r = eval { Statistics::Basic::LeastSquareFit->new( $_[0], $_[1] ) } or croak $@; return $r }
sub handle_missing_values {
my ($v1,$v2) = @_;
my $v3 = eval { computed($v1) } or croak $@;
my $v4 = eval { computed($v2) } or croak $@;
$v3->set_filter(sub {
my @v = $v2->query;
map {$_[$_]} grep { defined $v[$_] and defined $_[$_] } 0 .. $#_;
});
$v4->set_filter(sub {
my @v = $v1->query;
map {$_[$_]} grep { defined $v[$_] and defined $_[$_] } 0 .. $#_;
});
return ($v3,$v4);
}
*handle_missing = \&handle_missing_values;
*average = *mean;
*avg = *mean;
*var = *variance;
*cov = *covariance;
*cor = *correlation;
*corr = *correlation;
*lsf = *leastsquarefit;
*LSF = *leastsquarefit;
1;
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