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wrangle

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Software:82083



CRANwrangleMaRDI QIDQ82083

A Systematic Data Wrangling Idiom

Tim Bergsma

Last update: 24 August 2023

Copyright license: GNU General Public License, version 3.0

Software version identifier: 0.5.10, 0.3, 0.4, 0.5.1, 0.5.2, 0.5.5, 0.5.7, 0.5.8, 0.6.3

Supports systematic scrutiny, modification, and integration of data. The function status() counts rows that have missing values in grouping columns (returned by na() ), have non-unique combinations of grouping columns (returned by dup() ), and that are not locally sorted (returned by unsorted() ). Functions enumerate() and itemize() give sorted unique combinations of columns, with or without occurrence counts, respectively. Function ignore() drops columns in x that are present in y, and informative() drops columns in x that are entirely NA; constant() returns values that are constant, given a key. Data that have defined unique combinations of grouping values behave more predictably during merge operations.





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