l_which: Logical which

In destiny: Creates diffusion maps

Description

Inverse of which. Converts an array of numeric or character indices to a logical index array. This function is useful if you need to perform logical operation on an index array but are only given numeric indices.

Usage

l_which(idx, nms = seq_len(len), len = length(nms), useNames = TRUE)

Arguments

idx	Numeric or character indices.
nms	Array of names or a sequence. Required if idx is a character array
len	Length of output array. Alternative to nms if idx is numeric
useNames	Use the names of nms or idx

Details

Either nms or len has to be specified.

Value

Logical vector of length len or the same length as nms

Examples

all(l_which(2, len = 3L) == c(FALSE, TRUE, FALSE))
all(l_which(c('a', 'c'), letters[1:3]) == c(TRUE, FALSE, TRUE))

destiny documentation built on Nov. 8, 2020, 7:38 p.m.