Setting a global variable in R

Asked Sep 16 '16 at 14:28

Active Sep 16 '16 at 14:28

Viewed 307 times

I want to fill a vector through a function, that vector being global in my code:

## The vector
x = c( NA, NA, NA )

## changing its value
x[1] <- 1 # fine
x[1] <<- 1 # not fine

Error in x[1] <<- 1 : object 'x' not found

That must be some very basic R, I cannot see however how to have that value stored globally.

asked Sep 16 '16 at 14:28

Xavier Prudent

How about `assign` i.e. `assign("x", '[ – akrun Sep 16 '16 at 14:34
2

Can you give a more [reproducible example](http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example)? This works for me: `x – MrFlick Sep 16 '16 at 14:34
Why are you not passing the vector to your formula using `function(x)` and then receiving the results back `x – Morgan Ball Sep 16 '16 at 14:38
It is truely strange, that `< – Bernhard Sep 16 '16 at 14:38
3

There's no `[< – hrbrmstr Sep 16 '16 at 14:42
1

What you want is extremely uncommon and inadvisable. Why do you believe you need this? – Roland Sep 16 '16 at 14:42
MrFlick, your way indeed work. My intent in fact is to have a vector, whose content will be changed and accessed in different places of my code. By using x – Xavier Prudent Sep 16 '16 at 20:58

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