In general, you should probably update your R installation.
In specific, you should install the missing package Formula, as the
error message is telling you.
On Thu, Mar 10, 2016 at 2:51 PM, CHIRIBOGA Xavier
<xavier.chirib...@unine.ch> wrote:
> Dear all,
> Sorry for question again, but I am desesperating..
> I installed already "partykit" But there is stille a message (see below):
> the package "partykit" has been compiled with the version R3.1.3.
> What should I do now?
>
> I run my function and appears this:
>
> Error in loadNamespace(name) : there is no package called 'Formula'
>
> THANK YOU for ur assistance,
>
> Xavier
>
>
> install.packages("partykit") Installing package into
> 'C:/Users/chiribogax/Documents/R/win-library/3.1' (as 'lib' is unspecified)
> trying URL
> 'http://cran.rstudio.com/bin/windows/contrib/3.1/partykit_1.0-5.zip' Content
> type 'application/zip' length 1215105 bytes (1.2 Mb) opened URL downloaded
> 1.2 Mb package 'partykit' successfully unpacked and MD5 sums checked The
> downloaded binary packages are in
> C:\Users\chiribogax\AppData\Local\Temp\RtmpyugH55\downloaded_packages >
> library("partykit") Le chargement a nécessité le package : grid Warning
> message: le package 'partykit' a été compilé avec la version R 3.1.3 >
> plot(ctree(Surv(hours,state)~soil+volatile, data=data)) Error in
> loadNamespace(name) : there is no package called 'Formula'
>
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