Hello,

I want to install the Rgraphviz package on my windows 7 notebook. I saved
the Rgraphviz package as a .zip file and installed it with the following
output:

Paket ‘Rgraphviz’ erfolgreich ausgepackt und MD5 Summen abgeglichen

but then if i want to load the package with
library(Rgraphviz)
I get the output:

Lade nötiges Paket: graph
Lade nötiges Paket: grid
Error : .onLoad in loadNamespace() fehlgechlagen, Details:
  Aufruf: Rgraphviz
  Fehler: value[[3L]](cond)
Fehler: Laden von Paket/Namensraum für ‘Rgraphviz’ fehlgeschlagen

I tried with
browseVignettes(package=" Rgraphviz")
but got the output:

Fehler in find.package(package, lib.loc) :
  there is no package called ‘ Rgraphviz’

I have really no idea what I should try. I would be very glad if someone
could help me! Thanks!

Alexandra

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