R help - Feb 2011 - mapply question (?)

Hi,

I have a function myFun which I want to call multiple times, using different 
argument lists.
myFun("v1", "2009", 1)
myFun("v2", "2008", 1)
myFun("q", "2001")

How can I easily do this in R? Should I use mapply?

I unsuccessfully tried something like:
x <- list(c("v1", "2009", 1), c("v2",
"2008", 1), c("q", "2001"))
mapply(myFun, x)
 
Eventually, the argument lists will have to be stored in, and read from, an 
external configuration file (I'm thinking about using yaml), although this
might
at this point not yet be relevant.

TIA!
Cheers!!
Albert-Jan 


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
All right, but apart from the sanitation, the medicine, education, wine, public 
order, irrigation, roads, a fresh water system, and public health, what have the
Romans ever done for us?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 


      
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On Thu, Feb 3, 2011 at 1:26 PM, Albert-Jan Roskam <fomcl@yahoo.com> wrote:
> Hi,
>
> I have a function myFun which I want to call multiple times, using
> different
> argument lists.
> myFun("v1", "2009", 1)
> myFun("v2", "2008", 1)
> myFun("q", "2001")
>
Notice that the third call is different, you have 3 args in first two but
only 2 in the third one.  But you have to represent the missing argument
somehow (probably just using the default value explicitly, see args(myFun)
).

> How can I easily do this in R? Should I use mapply?
>
> I unsuccessfully tried something like:
> x <- list(c("v1", "2009", 1), c("v2",
"2008", 1), c("q", "2001"))
> mapply(myFun, x)
>
try

mapply(myFun, list("v1", "v2", "q"),
list("2009", "2008", "2001"), list(1,1,
SOMETHING))


Regards,
Kenn

>
> Eventually, the argument lists will have to be stored in, and read from, an
> external configuration file (I'm thinking about using yaml), although
this
> might
> at this point not yet be relevant.
>
> TIA!
> Cheers!!
> Albert-Jan
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> All right, but apart from the sanitation, the medicine, education, wine,
> public
> order, irrigation, roads, a fresh water system, and public health, what
> have the
> Romans ever done for us?
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>        [[alternative HTML version deleted]]
>
>
> ______________________________________________
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> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
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