Utility function to generate a nested list
nest_dictionary(dict, depth)
a flat dictionary
depths of nested element
lis <- list("A" = c("a", "aa", "aaa"), "B" = c("b", "bb"), "C" = c("c", "cc"), "D" = c("ddd"))
dict <- quanteda:::list2dictionary(lis)
quanteda:::nest_dictionary(dict, c(1, 1, 2, 2))
#> $A
#> $A[[1]]
#> [1] "a" "aa" "aaa"
#>
#>
#> $B
#> $B[[1]]
#> [1] "b" "bb"
#>
#> $B$C
#> $B$C[[1]]
#> [1] "c" "cc"
#>
#>
#> $B$D
#> $B$D[[1]]
#> [1] "ddd"
#>
#>
#>
quanteda:::nest_dictionary(dict, c(1, 2, 1, 2))
#> $A
#> $A[[1]]
#> [1] "a" "aa" "aaa"
#>
#> $A$B
#> $A$B[[1]]
#> [1] "b" "bb"
#>
#>
#>
#> $C
#> $C[[1]]
#> [1] "c" "cc"
#>
#> $C$D
#> $C$D[[1]]
#> [1] "ddd"
#>
#>
#>