Define all functions in one .R file, call them from another .R file. How, if possible?

Define all functions in one .R file, call them from another .R file. How, if possible?

r file scope namespaces user-defined-functions

r

Is it a good practice to call functions in a package via ::

r scope namespaces scoping qualified-name

r

Examples of the perils of globals in R and Stata

r scope global-variables stata

r

What is the meaning of the dollar sign "$" in R function()?

r function scope lexical-scope

r

Object not found error with ddply inside a function

r function scope plyr

r

What are the double colons (::) in R?

r scope namespaces operators scoping

r

Writing functions in R, keeping scoping in mind

r scope

r

how to access global/outer scope variable from R apply function?

r scope apply

r

How to use earlier declared variables within aes in ggplot with special operators (..count.., etc.)

r ggplot2 scope

r

Understanding lexical scoping in R

r scope

r

Can .SD be viewed from a browser within [.data.table()?

r scope data.table

r

R scoping: disallow global variables in function

r scope global

r

Why does evaluating an expression in system.time() make variables available in global environment?

r scope

r

Limiting variable scope

r scope

r

Usage of local variables

r scope

r