grid_dup {ichimoku} | R Documentation |
Duplicates of expand.grid for 2 Variables
Description
Create a vector of element positions of duplicates in the output of expand.grid on 2 identical vectors. An efficient method of creating combinations for 2 variables.
Usage
grid_dup(n, omit.id)
Arguments
n |
the length of vector passed to |
omit.id |
(optional) set to TRUE to also select the elements where the 2
items are identical. The output of expand.grid, subset to remove
duplicates with 'omit.id' set to TRUE would be the equivalent of
|
Value
A numeric vector.
Examples
n <- 3
expand.grid(1:n, 1:n)
expand.grid(1:n, 1:n)[-grid_dup(n), ]
expand.grid(1:n, 1:n)[-grid_dup(n, omit.id = TRUE), ]
[Package ichimoku version 1.5.5 Index]