Offers a suite of functions to prepare questionnaire data for analysis (perhaps other types of data as well). By data preparation, I mean data analytic tasks to get your raw data ready for statistical modeling (e.g., regression). There are functions to investigate missing data, reshape data, validate responses, recode variables, score questionnaires, center variables, aggregate by groups, shift scores (i.e., leads or lags), etc. It provides functions for both single level and multilevel (i.e., grouped) data. With a few exceptions (e.g., ncases()), functions without an "s" at the end of their primary word (e.g., center_by()) act on atomic vectors, while functions with an "s" at the end of their primary word (e.g., centers_by()) act on multiple columns of a data.frame.
Package details 


Author  David Disabato [aut, cre] (<https://orcid.org/0000000170944996>) 
Maintainer  David Disabato <ddisab01@gmail.com> 
License  GPL (>= 2) 
Version  0.2.0 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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