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Re: [igraph] glpk_not_available

From: Szabolcs Horvát
Subject: Re: [igraph] glpk_not_available
Date: Mon, 19 Mar 2018 09:29:19 +0100

There is a note for igraph 1.2.1:


"The GLPK library is optional, if it is not available, then the cluster_optimal() function does not work. Unfortunately we cannot bundle the GLPK library into igraph on CRAN any more, because CRAN maintainers forbid the pragmas in its source code."

Gregory: I do not think this refers to Rglpk. The underlying igraph function is implemented in C (not R!), and relies on an (older) bundled version of the GLPK C library. The release notes seem to say that this can no longer be included in build hosted on CRAN.

On 19 March 2018 at 08:41, Harun Pirim <address@hidden> wrote:
Dear All,

I ran cluster_optimal() function and got the message:

Warning in install.packages :
  package ‘GLPK’ is not available (for R version 3.4.4)

Any quick fix suggested?

thank you,

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