These tools are for R experts only. They copy elements from y
into x
by mutation. You should only do this if you own x
,
i.e. if you have created it or if you are certain that it doesn't
exist in any other context. Otherwise you might create unintended
side effects that have undefined consequences.
vec_poke_n(x, start, y, from = 1L, n = length(y))vec_poke_range(x, start, y, from = 1L, to = length(y) - from + 1L)
The destination vector.
The index indicating where to start modifying x
.
The source vector.
The index indicating where to start copying from y
.
How many elements should be copied from y
to x
.
The index indicating the end of the range to copy from y
.