These options will be used on objects of class 'grouped_df'.
Usage
opts_grouped_df(constructor = c("default", "next", "list"), ...)
Details
Depending on constructor
, we construct the object as follows:
"next"
: Use the constructor for the next supported class. Call.class2()
on the object to see in which order the methods will be tried."list"
: We define as an list object and repair attributes.