R help - Mar 2016 - package Formula????

Dear all, again me


I have already updated my version of R. But still appears this message:


plot(ctree(Surv(hours,state)~soil+volatile, data=data))
Error in loadNamespace(name) : there is no package called 'Formula'


I cannot find a package "Formula" in my list of packages. What to do
in that case?


Thank you,

Xavier

On Fri, 11 Mar 2016, CHIRIBOGA Xavier wrote:
> Dear all, again me
>
>
> I have already updated my version of R. But still appears this message:
>
>
> plot(ctree(Surv(hours,state)~soil+volatile, data=data))
> Error in loadNamespace(name) : there is no package called 'Formula'
>
>
> I cannot find a package "Formula" in my list of packages. What to
do in that case?
As you were instructed yesterday: Simply install the package
"Formula".
You can do this in R on the command line

install.packages("Formula")

or using the graphical user interface if you are using one...
>
> Thank you,
>
> Xavier
>
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