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exptools

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This package is a collection of useful tools for helping with processing experimental results in the field of computer science research. Although that is the primary intention, parts of this package might as well be useful for processing data in other research fields.

To install:

  • the latest development version: install_github("betabandido/exptools")

Usage

load.data

load.data loads data from multiple CSV files and combines the data into a data.table object. A regular expression is used to decide which CSV files will be used and how they should be merged.

Example:

load.data('results',
          'exp-(\\w+)/(\\d+)\\.csv',
          c('name', 'config'))

This command will load all the CSV files that match the given pattern within 'results' folder. Two extra columns will be added to the data.table ('name' and 'config'). Values for 'name' will be obtained from the first capture group (\\w+) and values for 'config' will be obtained from the second capture group (\\d+).

Assuming the following files in 'results' folder:

'results/exp-A/1.csv'
'results/exp-A/2.csv'
'results/exp-B/1.csv'
'results/exp-B/2.csv'

the resulting data.table will look like:

   name config ...
1:    A      1
2:    A      2
3:    B      1
4:    B      2

load.data accepts two additional arguments (local.func and global.func). Both arguments must be functions that accept a data.table as an argument, and return a potentially modified data.table. local.func will be applied to the data read from each CSV file (before merging all of them together). global.func will be called with the resulting data after the merge step. By providing these functions it is possible to filter or alter the data to suit the specific pre-processing requirements.

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Useful tools for computer science research experiments

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