Denver R User Group: October 2017

Lighting Talks

My quick talk overviews the changes to programming with dplyr functions since version 0.7.0 was released.

The major changes: the underscored versions of the dplyr verbs, e.g., mutate_, select_, rename_, etc., have been deprecated. The standard versions, e.g., mutate, select, rename, etc., use non-standard evaluation and the underscore versions were provided for standard evaluation.

With version 0.7.0 quosures were introduced allowing the standard verbs to be used and the underscore version of the functions to be superfluous.

My talk will show how to build functions in packages with dplyr >= 0.7.0

Navigate this talk:

No slides. Instead, use git and checkout each tag and look at the files and run

make check

to run R CMD check and see the warnings and notes that come up. Comments in the code and/or this read me file will be used to note talking points.

Tags

1. step00 The initial commit with just this README.md file.
2. step01 Shows use of dplyr::filter_ with lazyeval::interp