NAME
Chart::GGPlot::Util::Stats - Utility statistics functions
VERSION
version 0.0009
DESCRIPTION
Functions in this module are used by Chart::GGPlot::Stat::Smooth.
Each function returns a Data::Frame object which has a column named "fit" for smooth fit values for given argument $xseq. And if argument $se is a true value, the result data frame would have additonal two columns "ymin" and "ymax" for confidence interval.
FUNCTIONS
loess
loess(:$x, :$y, :$weights, :$xseq,
:$span=0.75,
:$se=false, :$level=0.95,
:$degree=2, :$parametric=undef, :$drop_square=undef,
:$normalize=true, :$family='gaussian')This function requires Math::LOESS.
See Math::LOESS::Model for details of the arguments.
glm
glm(:$x, :$y, :$xseq,
:$se=false, :$level=0.95,
$family='gaussian')This function requires PDL::Stats::GLM and PDL::GSL::CDF.
SEE ALSO
AUTHOR
Stephan Loyd <sloyd@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2019 by Stephan Loyd.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.