[R] Print and supressing printing in function

[Sundar Dorai-Raj]

Marc Schwartz said the following on 9/24/2006 1:56 PM:
> On Sun, 2006-09-24 at 11:31 -0700, Jonathan Greenberg wrote:
>> Another newbie question for you all:
>>
>> In a function, say I have:
>>
>> countme <- function() {
>> for(i in 1:10) {
>> i
>> }
>> }
>>
>> How do I get R to print "i" as it runs (e.g. By calling "countme") -- right
>> now it seems to supress most output.  On a related note, my program uses
>> remove.vars, which always prints its output -- how to I *supress* that
>> output?
>>
>> Thanks!
> 
> You need to explicitly print() the value. Thus:
> 
> countme <- function() {
> for(i in 1:10) {
>     print(i)
>   }
> }
> 
>> countme()
> [1] 1
> [1] 2
> [1] 3
> [1] 4
> [1] 5
> [1] 6
> [1] 7
> [1] 8
> [1] 9
> [1] 10
> 
> HTH,
> 
> Marc Schwartz
> 
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(Answering "remove.vars" question)

Please read ?remove.vars. (You neglected to mention this function is 
part of the gdata package.) There is an "info" argument you want to set 
to FALSE.

HTH,

--sundar