lead_dt | R Documentation |
Find the "next" or "previous" values in a vector.
It has wrapped data.table's shift
function.
lead_dt(x, n = 1L, fill = NA)
lag_dt(x, n = 1L, fill = NA)
x |
A vector |
n |
a positive integer of length 1, giving the number of positions to lead or lag by. Default uses 1 |
fill |
Value to use for padding when the window goes beyond the input length.
Default uses |
A vector
lead
,shift
lead_dt(1:5)
lag_dt(1:5)
lead_dt(1:5,2)
lead_dt(1:5,n = 2,fill = 0)
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