Useful after sorting a dataset, which changes the ID order. Works with piping
Usage
rollR(data, vars = id, label = order, dt = F)
Arguments
- data
dataset
- vars
column(s) which unique ids should be based on
- label
label for new unique id column
- dt
whether a data.table should be returned
Value
adds a new column to the dataset with unique ids based on original id conditional on a sorting
