How can I define Global Variables in R?

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Apr 25, 2018 in Data Analytics by zombie
• 3,690 points
1,566 views

1 answer to this question.

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The variables declared inside a function are local to that function.
For e.g.:

foo <- function() {
    m <- 2
}
foo()
m    //gives the following error: Error: object 'bar' not found.

If you want to make m a global variable, you should do:

foo <- function() {
    m <<- 2
}
foo()
m //In this case m is accessible from outside the function.
answered Apr 25, 2018 by shams
• 3,580 points

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