How to get name of variable in R (substitute)?

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I suggest you consider passing optional name value to these functions. I say this because it seems like you really want to use the name as a label for something in the end result; so it’s not really the variable itself that matters so much as its name. You could do

fun1 <- function (some_variable, name=deparse(substitute(some_variable))) {
    name
}
fun2 <- function (var_pass, name=deparse(substitute(var_pass))) { 
    fun1 (var_pass, name) 
}
my_var <- c(1,2)

fun2(my_var)
# [1] "my_var"

fun1(my_var)
# [1] "my_var"

This way if you end up having some odd variable name and what to give a better name to a result, you at least have the option. And by default it should do what you want without having to require the name parameter.

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