self_referencing: self_referencing tag to allow self referencing in arguments
In moodymudskipper/tags: A collection of tags built using the package 'tag'

Description Usage Details Examples

Enhance functions like transform, mutate, summarize ... by allowing arguments to reference themselves when they are formulas.

1	self_referencing()

to detect rigorously the type of the argument it would be necessary to evaluate it, which for these functions is not an option, therefore we just check if the expressions starts with a ~ character.

self_referencing$transform(head(iris,2), Petal.Width = ~1000*(.), Species = ~toupper(.))
## Not run: 
library(dplyr)
self_referencing$summarize(iris, Petal.Width = ~median(.), Sepal.Length = ~mean(.))

## End(Not run)