Vital Statistics Bureau

Statistics::RankOrder contains algorithms for determining overall rankings from a panel of judges. SYNOPSIS use Statistics::RankOrder; my $r = Statistics::RankOrder->new(); $r->add_judge( [qw( A B C )] ); $r->add_judge( [qw( A C B )] ); $r->add_judge( [qw( B A C )] ); my %ranks =...

Statistics::Descriptive is a Perl module of basic descriptive statistical functions. SYNOPSIS use Statistics::Descriptive; $stat = Statistics::Descriptive::Full->new(); $stat->add_data(1,2,3,4); $mean = $stat->mean(); $var = $stat->variance(); $tm = $stat->trimmed_mean(.25);...

Statistics::ChiSquare - How well-distributed is your data? SYNOPSIS use Statistics::Chisquare; print chisquare(@array_of_numbers); Statistics::ChiSquare is available at a CPAN site near you. Suppose you flip a coin 100 times, and it turns up heads 70 times. Is the coin fair? Suppose...


Platforms: *nix

Statistics::SPC is a Perl module with calculations for Stastical Process Control (SPC). Creates thresholds based on the variability of all data, # of samples not meeting spec, and variablity within sample sets, all from training data. Note: this is only accurate for data which is normally...


Platforms: *nix

Statistics::Smoothing::SGT is a Simple Good-Turing (SGT) smoothing implementation. SYNOPSIS Basic Usage use Statistics::Smoothing::SGT my $sgt = new Statistics::Smoothing::SGT($frequencyClasses, $total); $sgt->calculateValues(); $probabilities = $sgt->getProbabilities(); $newFrequencies...


Platforms: *nix

Free Statistics records and views daily Web site page views (hits) for statistical tracking. This is a Free PHP script to record and view daily website page views (hits) for statistical tracking. Features a chart of daily page views totals displayed with bar graph, total for last x days, most...


Platforms: *nix

Statistics::Contingency is a Perl module to calculate precision, recall, F1, accuracy, etc. SYNOPSIS use Statistics::Contingency; my $s = new Statistics::Contingency(categories => @all_categories); while (...something...) { ... $s->add_result($assigned_categories, $correct_categories);...


Platforms: *nix

Statistics::ROC is a Perl module with receiver-operator-characteristic (ROC) curves with nonparametric confidence bounds. SYNOPSIS use Statistics::ROC; my ($y) = loggamma($x); my ($y) = betain($x, $p, $q, $beta); my ($y) = Betain($x, $p, $q); my ($y) = xinbta($p, $q, $beta, $alpha); my...


Platforms: *nix

Candidates is a Perl5 module for manipulating candidate features (help module for Statistics::MaxEntropy). SYNOPSIS use Statistics::Candidates; # create a new candidates object and read candidate features $candidates = Statistics::Candidates->new($some_file); # checks for constant...


Platforms: *nix

Statistics::Cluto package contains Perl binding for CLUTO. SYNOPSIS use Statistics::Cluto; use Data::Dumper; my $c = new Statistics::Cluto; $c->set_dense_matrix(4, 5, [ [8, 8, 0, 3, 2], [2, 9, 9, 1, 4], [7, 6, 1, 2, 3], [1, 7, 8, 2, 1] ]); $c->set_options({ rowlabels => [ row0,...


Platforms: *nix

Qmail-Scanner Statistics (QSS) uses the Qmail-Scanner Logfile to generate daily, monthly, and yearly statistics. It also shows a complete list of viruses stopped by Qmail-Scanner, the top five domains from which the viruses came, as well as the countries.The application is easy to customize to...


Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Statistics::Distributions is a Perl module for calculating critical values and upper probabilities of common statistical distributions. SYNOPSIS use Statistics::Distributions; $chis=Statistics::Distributions::chisqrdistr (2,.05); print "Chi-squared-crit (2 degrees of freedom, 95th...


Platforms: *nix

Perl IRC Statistics Generator (pisg) is an IRC channel statics generator written in Perl, it creates statistics from different logfile formats. It was originally written because IRCStats wasnt open source. So heres an open source/GPLed version to anyone interested. Its a funny thing for your...


Platforms: *nix

Statistics::GammaDistribution Perl module represents a gamma distribution. SYNOPSIS use Statistics::GammaDistribution; my $g = Statistics::GammaDistribution->new(); $g->set_order(8.5); print $g->rand(1.0); my @alpha = (0.5,4.5,20.5,6.5,1.5,0.5); my @theta = $g->dirichlet_dist(@alpha);...


Platforms: *nix

Statistics::Descriptive::Discrete is a Perl module to compute descriptive statistics for discrete data sets. SYNOPSIS use Statistics::Descriptive::Discrete; my $stats = new Statistics::Descriptive::Discrete; $stats->add_data(1,10,2,0,1,4,5,1,10,8,7); print "count = ",$stats->count(),"n";...


Platforms: *nix

Statistics::LineFit module least squares line fit, weighted or unweighted. SYNOPSIS use Statistics::LineFit; $lineFit = Statistics::LineFit->new(); $lineFit->setData (@xValues, @yValues) or die "Invalid data"; ($intercept, $slope) = $lineFit->coefficients(); defined $intercept or die...


Platforms: *nix

Statistics::SDT Perl package contains signal detection theory measures of sensitivity and response-bias. SYNOPSIS use Statistics::SDT; $sdt = Statistics::SDT->new( { hits => 50, signal_trials => 50, false_alarms => 17, noise_trials => 25, correct => 2, } ); $d =...


Platforms: *nix

Statistics::OLS is a Perl module to perform ordinary least squares and associated statistics. SYNOPSIS use Statistics::OLS; my $ls = Statistics::OLS->new(); $ls->setData (@xydataset) or die( $ls->error() ); $ls->setData (@xdataset, @ydataset); $ls->regress(); my ($intercept, $slope)...


Platforms: *nix

Statistics::GaussHelmert is a general weighted least squares estimation module. SYNOPSIS use Statistics::GaussHelmert; # create an empty model my $estimation = new Statistics::GaussHelmert; # setup the model given observations $y, covariance matrices # $Sigma_yy, an initial guess $b0...


Platforms: *nix

Statistics::LTU is an implementation of Linear Threshold Units. SYNOPSIS use Statistics::LTU; my $acr_ltu = new Statistics::LTU::ACR(3, 1); # 3 attributes, scaled $ltu->train([1,3,2], $LTU_PLUS); $ltu->train([-1,3,0], $LTU_MINUS); ... print "LTU looks like this:n"; $ltu->print;...


Platforms: *nix