A Data Cleaning Example

September 27, 2015
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[This article was first published on Just Another Data Blog, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
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For this particular example,

  • the variables of interest are stored as key:value pairs and
  • a single data cell could contain multiple (unknown) number of key:value pairs.

Basically, we want to convert input dataset on LHS to the output dataset on the RHS as illustrated in the graphic below –

The objective is to separate these key-value pairs and store the values in corresponding key columns.

The hadleyverse packages make this task a fairly simple one, especially tidyr, stringr and magrittr.

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