'Databrary.org' is a restricted access repository for
    research data, especially video and audio.  This package provides
    commands to interact with the data stored on 'Databrary.org'.

Easily define templates for lists and data frames that validate
    each element. Specify the expected type (i.e., character, numeric, etc),
    expected length, minimum and maximum values, allowable values, and more for
    each element in your data. Decide whether violations of these expectations
    should throw an error or a warning. This package is useful for validating
    data within R processes which pull from dynamic data sources such as
    databases and web APIs to provide an extra layer of validation around input
    and output data.

Includes functions that researchers or practitioners may use to clean
    raw data, transferring html, xlsx, txt data file into other formats. And it
    also can be used to manipulate text variables, extract numeric variables from
    text variables and other variable cleaning processes. It is originated from a
    author's project which focuses on creative performance in online education
    environment. The resulting paper of that study will be published soon.

Flexible and efficient cleaning of data with interactivity.
  'datacleanr' facilitates best practices in data analyses and reproducibility with built-in features and by translating interactive/manual operations to code. 
  The package is designed for interoperability, and so seamlessly fits into reproducible analyses pipelines in 'R'.

Tools for combining and cleaning data sets, particularly
    with grouped and time series data.

Easy comparison of two tabular data
    objects in R. Specifically designed to show differences between two sets of
    data in a useful way that should make it easier to understand the differences,
    and if necessary, help you work out how to remedy them. Aims
    to offer a more useful output than all.equal() when your two data sets do not
    match, but isn't intended to replace all.equal() as a way to test for equality.