function Dependencies In R

Description Usage Arguments Examples

This is useful for reducing pollution in the global namespace, and not loading multiple files twice unnecessarily.

1	define(..., envir = parent.env(topenv()), local)

`...`	see examples.
`envir`	environment. The parent environment to use when calling `base::source` to fetch dependencies.
`local`	logical. If `TRUE` and `envir` is missing, it will set `envir = parent.frame()`.

## Not run: 
helper_fn <- define('some/dir/helper_fn')
define(c('some/dir/helper_fn', 'some/other_dir/library_fn'), function(helper_fn, library_fn) { ... }
helper_fns <<- define('some/dir/helper_fn1', 'some/otherdir/helper_fn2')
helper_fns[[1]]('do something'); helper_fns[[2]]('do something else')

## End(Not run)