copy: Copy elements of a list

In tharte/tutils: Tom's UTILity functionS

Description

Copies elements of a list, either indexed or named

Usage

copy(x, index = 1:length(x))

Arguments

x	list, unnamed or named
index	integer or character index of the elements in x to copy, either indexed integer or named character

Value

list

Author(s)

Thomas P. Harte

See Also

list

Examples

 # NULL list:
	copy(list(), integer(0))

	# unnamed list:
 x<- list(1, 2, 3)
 x

 copy(x, integer(0))
 copy(x, 1:2)

 # named list:
 x<- list(a=1, b=2, c=3)
 x
 # integer index still works:
 copy(x, 1:2)
 # named index works too:
 copy(x, c("a","b"))

 ## FIXME: index mismatch
 ## copy(x, 1:4)
 ## copy(x, c("a","b"))
 ## copy(x, c("a","b","d"))

tharte/tutils documentation built on Feb. 11, 2020, 9:17 a.m.