txt: ## dist_zef-raku-community-modules-Statistics-LinearRegression.md
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  # NAME
  
  Statistics::LinearRegression - simple linear regression
  
  # SYNOPSIS
  
  Gather some data
  
  ```
  my @arguments = 1,2,3;
  my @values = 3,2,1;
  
  ```
  
  Build model and predict value for some x using object
  
  ```
  use Statistics::LinearRegression;
  my $x = 15;
  my $y = my LR.new(@arguments, @values).at($x);
  
  ```
  
  If you prefer bare functions, use :ALL
  
  ```
  use Statistics::LinearRegression :ALL;
  my ($slope, $intercept) = get-parameters(@arguments, @values);
  my $x = 15;
  my $y = value-at($x, $slope, $intercept);
  
  ```
  
  # DESCRIPTION
  
  LinearRegression finds slope and intercept parameters of linear function by minimizing mean square error.
  
  Value at y is calculated using `y = slope × x + intercept`.
  
  # TODO
  
  * R^2 and p-value calculation
  * support for other objective functions
  
  # CHANGES
  
  * 1.1.0 LR class exported by default, bare subroutines need :ALL
  
  # AUTHOR
  
  Paweł Szulc
  
  # COPYRIGHT AND LICENSE
  
  Copyright 2016 -2017 Paweł Szulc
  
  Copyright 2024 Raku Community
  
  This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.
  