This was due to a problem with the igraph-package. The guys behind that package (Gabor Csardi) have just submitted a new version of their R-package that should solve this issue. As soon as it has been approved by CRAN and disseminated across the servers, you should be able to get it by writing update.packages() in R.

Tore

Thank you for taking an interest in my work, and tnet.

tnet requires that igraph is installed as this package does some of these computationally heavy stuff in C++ and tnet is solely written in R.

Did you install tnet using the install.packages(“tnet”)-command? If so, igraph should have automatiically been installed. Also, try to run update.packages() to see whether an update could sort the packages out. If none of these things work, please contact me offline.

Best,

Tore

I installed R on my pc andI installed the package tnet.
If i compute your code, R give me an error:
“Loading required package: igraph
Error : .onLoad failed in loadNamespace() for ‘igraph’, details:
call: inDL(x, as.logical(local), as.logical(now), …)
error: unable to load shared library ‘C:/Users/ssuweis/Documents/R/win-library/2.11/igraph/libs/igraph.dll’:
LoadLibrary failure: The specified module could not be found.”

So I installed also the package “igraph” and I tried to load it, but a new error appear:

“Error: package/namespace load failed for ‘igraph’”

Of course I have set the directory in the folder where I have my “personal library”‘, so I cannot understand why I cannot load both tnet and igraph package.

I think it is a trivial problem that occurs to beginners in R like me, andI tried to google the latter error, but I did not find any useful suggestions..If you can help I really appreciate it!

Thanks and best

Samir