R devel - Jul 2005 - as.data.frame.table responseName argument (PR#8006)

Full_Name: Heather Turner
Version: 2.1.1
OS: Windows XP
Submission from: (NULL) (137.205.240.44)


I get an error when trying to use the responseName argument of
as.data.frame.table, e.g.
> ## Create table
> f <- gl(3, 3)
> tab <- table(f)
> tab
f
1 2 3 
3 3 3 
> ## Convert to data.frame - works fine
> dat1 <- as.data.frame(tab)
> dat1
  f Freq
1 1    3
2 2    3
3 3    3
> ## As above with responseName - get error
> dat2 <- as.data.frame(tab, responseName = "count")
Error in as.data.frame(tab, responseName = "count") : 
	unused argument(s) (responseName ...)

I have checked the arguments of as.data.frame.table and responseName is
there:
> args(as.data.frame.table)
function (x, row.names = NULL, optional = FALSE, responseName =
"Freq",
    ...) 
NULL
but I notice as.data.frame has no dots argument
> args(as.data.frame)
function (x, row.names = NULL, optional = FALSE) 
NULL
which would (I think) explain the error,

Heather

You need to call as.data.frame.table directly here.

If we alter the generic we would need to alter all the many methods too 
(including those in various CRAN packages), and I am not sure this would 
be worth it (rather than clarifying the documentation).

This was a user-contributed enhancement that seems to have caused more 
problem that its value.

On Wed, 13 Jul 2005 Heather.Turner at warwick.ac.uk wrote:
> Full_Name: Heather Turner
> Version: 2.1.1
> OS: Windows XP
> Submission from: (NULL) (137.205.240.44)
>
>
> I get an error when trying to use the responseName argument of
> as.data.frame.table, e.g.
>
>> ## Create table
>> f <- gl(3, 3)
>> tab <- table(f)
>> tab
> f
> 1 2 3
> 3 3 3
>> ## Convert to data.frame - works fine
>> dat1 <- as.data.frame(tab)
>> dat1
>  f Freq
> 1 1    3
> 2 2    3
> 3 3    3
>> ## As above with responseName - get error
>> dat2 <- as.data.frame(tab, responseName = "count")
> Error in as.data.frame(tab, responseName = "count") :
> 	unused argument(s) (responseName ...)
>
> I have checked the arguments of as.data.frame.table and responseName is
there:
>> args(as.data.frame.table)
> function (x, row.names = NULL, optional = FALSE, responseName =
"Freq",
>    ...)
> NULL
> but I notice as.data.frame has no dots argument
>> args(as.data.frame)
> function (x, row.names = NULL, optional = FALSE)
> NULL
> which would (I think) explain the error,
>
> Heather
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
>
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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