View source: R/helper_functions.r
get.fn | R Documentation |
Helper to grab a function that is passed in as an argument
get.fn(fn, env = parent.frame())
fn |
The function to search for |
env |
The environment to start searching in |
This is based on Hadley Wickham's response to an SO post: https://stackoverflow.com/questions/14183766/match-fun-provide-error-with-functions-defined-inside-functions with some minor modifications
fn
, if fn
is already a function; otherwise, the first function found
in env or one of its parents whose name is fn
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