[R] Cryptic error message from rfe (in caret package)

[Max Kuhn]

Good etiquette would be to email the maintainer (me) with a
reproducibility example and the results of sessionInfo().

Max

On Wed, Dec 2, 2009 at 7:13 AM, Richard R. Liu <richard.liu at pueo-owl.ch> wrote:
> When using the function rfe I receive the warning
>
> In x == y : longer object length is not a multiple of shorter object length
>
> more than 50 times.
>
> I call rfe as follows:
>
> nbProfile <- rfe(features.train.50pct, truth.train.50pct, sizes =
> no.features, rfeControl = nbCtrl)
>
> where
> features.train.50pct    data frame of 8 named columns, each of 487 rows,
> numeric
> truth.train.50pct       factor of 487 logical elements
> sizes                   1, 2, ..., 8
> nbCtrl                  rfeControl(functions = nbFuncs, method = "cv",
> verbose = F, returnResamp = "final")
>
> Does anybody know to which objects the warnings refer?
>
> Richard R. Liu
> Dittingerstr. 33
> CH-4053 Basel
> Switzerland
>
> Tel.:  +41 61 331 10 47
> Mobil: +41 79 708 67 66
> Email:  richard.liu at pueo-owl.ch
>
>
>
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>



-- 

Max