[R] Global variables

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Tue Jul 28 14:56:35 CEST 2015


Please don't. Function arguments are good... global variables are bad.

one <- function(){
  result <- list( a="variable passed" )
  result
}
two <- function( v ){
  print( v$a )
}

x <- one()
two( x )

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Sent from my phone. Please excuse my brevity.

On July 28, 2015 8:22:41 AM EDT, jpara3 <j.para.fernandez at hotmail.com> wrote:
>Hi, I want to pass a variable value from one function to another, but
>not as
>a function argument. For this propose I have put <<-, but it doesn´t
>work.
>
>My code:
>
>one<-function(){
>
>a<<-"variable passed"
>}
>two<-function(){
>print(a)
>}
>
>dos()
>
>If I execute dos(), then the error message is:
>
>Error in print(a) : object 'a' not found
>
>
>Thanks"!
>
>
>
>
>--
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>
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