[R] Problem with expand.grid

[Henrique Dallazuanna]

The help page says:

"...: vectors, factors or a list containing these."

So, you can try this:

expand.grid(as.list(dDF))

On Tue, Dec 22, 2009 at 2:19 PM, Keith Jewell <k.jewell at campden.co.uk> wrote:
> Just confirming it isn't the bug fixed in 2.11.0dev, and giving an even
> simpler example:
>
> R version 2.11.0 Under development (unstable) (2009-12-20 r50794)
>
>> expand.grid(data.frame(y=1:10, t=1:10))
> Error in `[[<-.data.frame`(`*tmp*`, i, value = c(1L, 2L, 3L, 4L, 5L, 6L,  :
>  replacement has 100 rows, data has 10
>
> "Keith Jewell" <k.jewell at campden.co.uk> wrote in message
> news:hgqqja$rku$1 at ger.gmane.org...
>> Hi All,
>>
>> This example code
>> ----------------
>> dDF <- structure(list(y = c(4.75587, 4.8451, 5.04139, 4.85733, 5.20412,
>> 5.92428, 5.69897, 4.78958, 4, 4), t = c(0, 48, 144, 192, 240,
>> 312, 360, 0, 48, 144), Batch = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1
>> ), T = c(2, 2, 2, 2, 2, 2, 2, 2, 2, 2), pH = c(4.6, 4.6, 4.6,
>> 4.6, 4.6, 4.6, 4.6, 4.6, 4.6, 4.6), S = c(0, 0, 0, 0, 0, 0, 0,
>> 0, 0, 0), N = c(0, 0, 0, 0, 0, 0, 0, 80, 80, 80)), .Names = c("y",
>> "t", "Batch", "T", "pH", "S", "N"), row.names = c(NA, 10L), class =
>> "data.frame")
>> str(dDF)
>> expand.grid(dDF)
>> ------------------------------------
>> 'hangs' for a while and then gives an error
>>
>> Error in `[[<-.data.frame`(`*tmp*`, i, value = c(4.75587, 4.8451, 5.04139,
>> :
>>  replacement has 10000000 rows, data has 10
>>
>> In NEWS.R-2.11.0dev I read:
>>    o The new (in 2.9.0) 'stringsAsFactors' argument to expand.grid()
>> was not working: it now does work but has default TRUE for
>> backwards compatibility.
>>
>> but I don't think that's relevant, I have no factors.
>>
>> I'm probably being silly. Can anyone point out where?
>>
>> Best...
>>
>> Keith Jewell
>>
>> --please do not edit the information below--
>>
>> Version:
>> platform = i386-pc-mingw32
>> arch = i386
>> os = mingw32
>> system = i386, mingw32
>> status = Patched
>> major = 2
>> minor = 10.1
>> year = 2009
>> month = 12
>> day = 21
>> svn rev = 50796
>> language = R
>> version.string = R version 2.10.1 Patched (2009-12-21 r50796)
>>
>> Windows Server 2003 x64 (build 3790) Service Pack 2
>>
>> Locale:
>> LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United
>> Kingdom.1252;LC_MONETARY=English_United
>> Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252
>>
>> Search Path:
>> .GlobalEnv, package:stats, package:graphics, package:grDevices,
>> package:utils, package:datasets, package:methods, Autoloads, package:base
>>
>
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O