Check for paths from from to to
Usage
check_parents(parent_lookup, from, to, prev = NULL)
Arguments
- parent_lookup
A list of vectors
- from
character
- to
character
- prev
Should always be null when first called
Value
A list of paths or null if no path is found
Examples
parent_lookup <- list(M = "Am", Y = c("M", "Ay"), A = NULL, Am = "A", Ay = "A")
check_parents(parent_lookup, "A", "Y")
#> $M
#> $M$Am
#> [1] "A" "Am" "M" "Y"
#>
#>
#> $Ay
#> [1] "A" "Ay" "Y"
#>