rtables::var_labels throws an error instead of an empty string for an empty data.frame

[kpagacz]

According to the doc string of rtables::var_labels rtables::var_labels returns a named character vector with the variable labels (empty string if not specified), but it returns an error if passed an empty data.frame(). I would expect it to return a character vector of length 0 because an empty data.frame is a valid data.frame with 0 columns and has no variable labels specified.

rtables::var_labels(data.frame()) # throws an error

[kpagacz]

As a bonus: there's a typo in the doc string:

empty string, not sting

[gmbecker]

Closed as fixed by above commit to formatters