People who speak only English and Hebrew (like myself), can't help you.
Consider reposting in English.
Tal
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On Wed, Aug 4, 2010 at 12:46 AM, aline uwimana <rwanuza@gmail.com> wrote:
> # Classification Tree with rpart
> library(rpart)
>
> # grow tree
> fit <- rpart(y~ x1 + x2+ x3 + x4+ x5,method="class",
data=data)
>
>
> printcp(fit) # display the results
> plotcp(fit) # visualize cross-validation results
> summary(fit) # detailed summary of splits
>
> # plot tree
> plot(fit, uniform=TRUE,main="Classification Tree for data")
> text(fit, use.n=TRUE, all=TRUE, cex=.8)
>
> # create attractive postscript plot of tree
> post(fit, file = "c:/tree.ps",title = "Classification Tree
for data")
>
>
> > plotcp(fit)
> Erreur dans plotcp(fit) :
> 'cptable' ne contients aucuns résultats de validation croisée
>
> > summary(fit)
> Call:
> rpart(formula = y~ x1 + x2 + x3 +x4 +x5,
> data = data, method = "class")
> n=2091 (631 observations deleted due to missingness)
>
> CP nsplit rel error
> 1 0 0 1
> Erreur dans yval[, 1] : nombre de dimensions incorrect
>
>
> ->> Someone can help to solve this problem.
> Thanx
>
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>
>
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