AliFarnudi afarnudi
multidis
/ list_as_fun_args.r
Created
December 16, 2013 22:21
Passing lists as function arguments in R. Frequently helps reduce code repetition (e.g. if/else calls of different functions with mostly the same arguments). NOTE: always consider a closure function as FP alternative to this method of dealing with repetitive code elements.
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| ## regular case | |
| foo <- function(a, b, c) a + b - c ## does something | |
| foo2 <- function(b, c) b + c ## also some function | |
| foo(a=1, b=2, c=5) | |
| foo2(b=2, c=5) ## repeating list of multiple arguments | |
| ## passing a list | |
| arg.list <- list(b=2, c=5) | |
| do.call(foo, c(list(a=1), arg.list)) | |
| do.call(foo2, arg.list) |