DataFrame.pm

Description

This Perl module provides a degenerated variant of a data frame in R. The names of methods follow mostly ones in R. Only very basic functions are currently implemented.

• Please read pod-DataFrame.md at first. You can also browse it by perldoc:

    $ perldoc Arrow/DataFrame.pm
  

  Or http://stdiff.net/?pod-DataFrame.

• You can get an overview by executing the perl script test-DataFrame.pl. This script downloads a well-known Auto.csv and shows how to use DataFrame.pm.

• Several methods are not explained in the documentation. Please avoid using such a method, because it will substantially be changed.

• At your own risk.

• Your feedback is always welcome.

How to use

1. Create Arrow directory and put DataFrame.pm into it.

.
├── Arrow
│   └── DataFrame.pm
└── YOUR_PERL_SCRIPT.pl

2. Add the following line to your script.

use Arrow::DataFrame;

Machine Learning with DataFrame.pm

• Linear/Ridge Regression
• Logisitic Regression

ChangeLog

• 2016/05/22 : Arrow::Optimizer, Arrow::PreProcessing, Arrow::LogisticRegression are added.
• 2016/05/22 : Arrow::LabelEncoder is deleted. (This is integrated in Arrow::PreProcessing)
• 2016/02/12 : Arrow::LabelEncoder and Arrow::LinearRegression are added
• 2016/02/11 : Arrow::GroupBy is added
• 2016/02/10 : the default value of width is set to 8
• 2016/02/10 : dcast() and melt() are added
• 2015/12/29 : select() preserves the given order
• 2015/12/17 : the first commit.