# 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)
# 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)
# get indices in list format
indexify(str_list, "list")
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