An example that just tripped me up was tidyr::hoist using .data and other . prefixed arguments, but then tidyr::pivot_longer and tidy::pivot_wider using data and not . prefixed arguments.
.data is used to be explicit about a dataset, while data is refering to a dataset. Sort of more here: Chapter 12 Tidy evaluation | Mastering Shiny
From the tidyverse design guide
When using
...to create a data structure, or when passing...to a user-supplied function, add a.prefix to all named arguments. This reduces (but does not eliminate) the chances of matching an argument at the wrong level.
E.g. in nest() the ... are used to create a data structure that's why it uses .names_sep instead of names_sep.
In the past unnest() used ... to create data structures and therefore the old arguments are prefixed with a .. But now ... is deprecated and you should use the cols argument. Therefore, the new argument are not prefixed.
2 Likes
This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.
If you have a query related to it or one of the replies, start a new topic and refer back with a link.