list.group | R Documentation |
Divide list/vector elements into exclusive groups
list.group(.data, ..., sorted = TRUE)
.data |
A |
... |
One or more expressions in the scope of each element to evaluate as keys |
sorted |
|
A list of group elements each contain all the elements in .data
belonging to the group
list.ungroup
x <- list(p1 = list(type='A',score=list(c1=10,c2=8)), p2 = list(type='B',score=list(c1=9,c2=9)), p3 = list(type='B',score=list(c1=9,c2=7))) list.group(x, type) list.group(x, mean(unlist(score)))
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