set_na_where(): a nonstandard evaluation use case
In this post, I describe a recent case where I used rlang’s
tidy evaluation
system to do some data-cleaning. This example is not particularly involved, but
it demonstrates is a basic but powerful idea: That we can capture the
expressions that a user...
![](https://tjmahr.github.io/figs//2017-08-15-set-na-where-nonstandard-evaluation-use-case/missing-data-plot-1.png)