Dear experts

I installed Rgraphviz with the following command:


source("http://www.bioconductor.org/biocLite.R")

    biocLite("Rgraphviz")


But had a problem when I tried to load it.

This says that libcdt-4.dll is missing in your computer and the following
message in R window:

> library("Rgraphviz")
Loading required package: graph
Loading required package: grid
Error : .onLoad failed in loadNamespace() for 'Rgraphviz', details:
  call: value[[3L]](cond)
  error: unable to load shared object
'C:/R/library/Rgraphviz/libs/i386/Rgraphviz.dll':
  LoadLibrary failure:  The specified module could not be found.


  Check that (1) graphviz is installed on your system; (2) the
  installed version of graphviz matches '2.20.3'; this is the version
  used to build this Rgraphviz package; (3) graphviz is accessible to
  R, e.g., the path to the graphviz 'bin' directory is in the system
  'PATH' variable.  See additional instructions in the 'README' file of
  the Rgraphviz 'source' distribution, available at

  http://bioconductor.org/packages/release/bioc/html/Rgraphviz.html

  Ask further questions on the Bioconductor mailing list

  http://bioconductor.org/docs/mailList.html

Error: package/namespace load failed for 'Rgraphviz'


Help me please.


-- 

Ram H

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