[Rd] dir.create does not return a value (PR#13686)

[Josh Ulrich]

Robert,

The function always returns a value, but it doesn't print the value.
Look at the source code for dir.create(), then read ?invisible.

Best,
Josh
--
http://www.fosstrading.com



On Sat, May 2, 2009 at 7:41 AM, Robert Hijmans <r.hijmans at gmail.com> wrote:
> Thanks, I am not sure if this is desirable (a function returning a
> value only when 'asked' to do so), but I am intrigued. How can one put
> such behaviour in an R function?
>
> Robert
>
>
> On Sat, May 2, 2009 at 8:27 PM, Sundar Dorai-Raj <sdorairaj at gmail.com> wrote:
>> Not a bug. Try:
>>
>> print(dir.create("foo"))
>>
>> or
>>
>> foo <- dir.create("foo")
>> foo
>>
>> HTH,
>>
>> --sundar
>>
>> On Sat, May 2, 2009 at 5:10 AM,  <r.hijmans at gmail.com> wrote:
>>> ?dir.create  (part of the base package) says that:
>>> "dir.create and Sys.chmod return a logical vector indicating which
>>> operation succeeded for each of the files attempted"
>>>
>>> However, on my system it returns nothing  (whether successful or not):
>>>
>>>> dir.create(":::@!#!::")
>>>> dir.create('b')
>>>
>>>
>>>> sessionInfo()
>>> R version 2.9.0 (2009-04-17)
>>> i386-pc-mingw32
>>>
>>> locale:
>>> LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
>>> States.1252;LC_MONETARY=English_United
>>> States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
>>>
>>> attached base packages:
>>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>>>
>>>
>>> HTH, Robert
>>>
>>> ______________________________________________
>>> R-devel at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>>
>>
>
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