indices_l {tinylens} | R Documentation |
Subset lens
Description
This function returns a lens that subsets the object in a generalized way.
Usage
indices_l(...)
i_l(...)
Arguments
... |
Conditions to subset by. Unnamed arguments are used as indices.
Named arguments are passed along to |
Value
A lens that subsets the object by the specified indices
Examples
d <- data.frame(x = 1:10, y = 11:20, z = 21:30)
l <- indices_l(1, 1)
# get the first row of first column
view(d, l)
# set the first row of first column
set(d, l, 1)
# get the first row
l <- indices_l(1,)
view(d, l)
# set the first row
set(d, l, 1)
[Package tinylens version 0.1.0 Index]