[R] Different cp values in rpart() using plotcp() and printcp()

[Uwe Ligges]

On 17.02.2012 11:18, silje skår wrote:
> hi,
>
> I have a question regarding cp values in rpart(). When I use plotcp() I get
> a figure with cp values on the x-axsis, but then I use printcp() the cp
> values in that list are different from the values in the figure by
> plotcp(). Does someone know why?

printcp() gives the minimal cp for which the pruning happens.
plotcp() plots against the geometric mean (see the help pages!)

Uwe ligges



> Silje
>
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