Create indices for elements in a vector or list

Create indexed components for the elements of a list.

indexify(x, out)

Arguments

x

a numeric vector or list of vectors

out

string indicating the output format ("vector" or "list")

Value

A vector (or list) of indexed numbers

Author

Gaston Sanchez

See also

listify

Examples

# let's say you have a numeric vector like this
num_vec = c(2, 3, 1, 4)

# get indices in vector format
indexify(num_vec)
#>  [1] 1 1 2 2 2 3 4 4 4 4

# let's say you have a list like this
str_list = list(c("a","b","c"), c("d", "e"), c("f","g","h"))

# get indices in vector format
indexify(str_list)
#> [1] 1 1 1 2 2 3 3 3

# get indices in list format
indexify(str_list, "list")
#> [[1]]
#> [1] 1 1 1
#> 
#> [[2]]
#> [1] 2 2
#> 
#> [[3]]
#> [1] 3 3 3
#>