Convert indicator to index — as

Converts a string of 0's and 1's into index positions of the 1's padding the results by 0's so they are all the same length

Usage

as_indices(x)

x: a character vector whose values are all either "0" or "1". All elements of the vector must be the same length

i.e.

patmap(c("1101", "0001"))  ->   list(c(1,2,4,999), c(4,999, 999, 999))