pedro alcocer / code { cv, personal }

This is a set of Ruby classes for processing data output from Doug Rohde's Linger software for self-paced reading experiments.

Simply stated, it takes raw Linger output and turns it into a table for use in R.

The latest working version is available from github. A usage example is below.

require "linger-process.rb"

# A new Experiment object takes four arguments, two of which are required:  
#   (1) required, Array that specifies the names of the experiment(s)  
#   (2) required, Hash that specifies how the conditions should be expanded  
#   (3) optional, String that specifies the directory containing the Linger data,  
#       defaults to "./data/"  
#   (4) optional, Array of symbols that specifies what columns should be output,  
#       defaults to  
#       [:words, :word_lengths, :word_positions, :regions, :experiment, :subject,    
#        :item, :condition, :sentence_number, :list_position, :reading_times,  
#        :log_reading_times, :accuracy]


experiment_names = ["principB", "principC"]

# Here, for example, the condition coded as TNN in the raw data is
# expanded out to the factors RC, N, and U. You can specify as many
# conditions and factors as necessary.

factors = { "TNN" => %w(RC N U),
            "TNM" => %w(RC M U),
            "QNN" => %w(HN N U),
            "QMN" => %w(HN M G)}

data_directory = "./example-input-data/"

columns = [:experiment, :subject, :item, :condition, :factors, :regions, 
           :reading_times, :log_reading_times, :words, :word_lengths, 
           :word_positions, :list_position, :accuracy]

experiment = Experiment.new(experiment_names, factors, data_directory, columns)

# All processing is done within the object. There are two 
# options for outputting the processed data. You can either output
# it to STD_OUT (to check that everything went smoothly), or you can
# save it to a file.

#puts experiment                              # to STDOUT
experiment.to_file("example-output-data.txt") # to a file