Source: libstatistics-regression-perl Maintainer: Debian Perl Group Uploaders: Andrius Merkys , Section: perl Testsuite: autopkgtest-pkg-perl Priority: optional Build-Depends: debhelper-compat (= 13), Build-Depends-Indep: libmodule-install-perl, libtest-simple-perl , perl, Standards-Version: 4.5.1 Homepage: https://metacpan.org/release/Statistics-Regression Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libstatistics-regression-perl Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libstatistics-regression-perl.git Rules-Requires-Root: no Package: libstatistics-regression-perl Architecture: all Depends: ${misc:Depends}, ${perl:Depends}, Description: weighted linear regression package (line+plane fitting) Regression.pm is a multivariate linear regression package. That is, it estimates the c coefficients for a line-fit of the type . y= c(0)*x(0) + c(1)*x1 + c(2)*x2 + ... + c(k)*xk . given a data set of N observations, each with k independent x variables and one y variable. Naturally, N must be greater than k---and preferably considerably greater. Any reasonable undergraduate statistics book will explain what a regression is. Most of the time, the user will provide a constant ('1') as x(0) for each observation in order to allow the regression package to fit an intercept.