#876 No plugin named Louvain?

[Melançon Guy]

I am using Tulip 5.2, OS X, running python on the command line (as well as in a script):

dataSet = tlp.getDefaultPluginParameters('Louvain', graph)
graph.applyAlgorithm('Louvain', dataSet)

I get an error:

Exception: No Tulip integer algorithm plugin named Louvain.

raised by the call to applyAlgorithm -- while the getDefaultPluginParameters indeed returns a dictionary with the right parameter entries ... This is confusing.

Any help appreciated. Cheers,
Guy

[brenoust]

Hello Guy,

Please try as much as possible to take the habit of posting your issues to
the Tulip Github (https://github.com/Tulip-Dev/tulip/issues)
The graph.applyAlgorithm() naming is a bit ambiguous, it refers to general
algorithms such ac Voronoi, Equal value, etc.
Louvain is an integer algorithm, so you should call this way:
graph.applyIntegerAlgorithm('Louvain')

This should solve your problem,
Cheers,
--
Benjamin

On Wed, 3 Oct 2018 at 01:30, Melançon Guy melancon@users.sourceforge.net
wrote:

---

• [bugs:#876] https://sourceforge.net/p/auber/bugs/876/ No plugin named
  Louvain?*

Status: open
Group: 3.5.x
Created: Tue Oct 02, 2018 04:30 PM UTC by Melançon Guy
Last Updated: Tue Oct 02, 2018 04:30 PM UTC
Owner: nobody

I am using Tulip 5.2, OS X, running python on the command line (as well as
in a script):

dataSet = tlp.getDefaultPluginParameters('Louvain', graph)
graph.applyAlgorithm('Louvain', dataSet)

I get an error:

Exception: No Tulip integer algorithm plugin named Louvain.

raised by the call to applyAlgorithm -- while the
getDefaultPluginParameters indeed returns a dictionary with the right
parameter entries ... This is confusing.

Any help appreciated. Cheers,
Guy

---

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[Melançon Guy]

Ok, will go to github. But the problem is not solved by calling applyIntegerAlgorithm (wiht proper integer proeprty), I get the same error again.

[Patrick Mary]

As 'Louvain' is a Tulip::DoubleAlgorithm, that is it computes the values of a DoubleProperty, then a DoubleProperty is needed as an argument of the method call.
So use
graph.applyDoubleAlgorithm('Louvain', graph['viewMetric'], dataSet)
instead.