Kurt Stockinger wrote: > Hi Dan, > > Ok, thanks. I will install R and try it out. > It worked fine on the Mac.
Thanks again for the quick help. Kurt > Thanks, > Kurt > > Dan Higgins wrote: > >> Hi Kurt, >> Yes, that workflow does require R. That is indicated by the 'R' >> symbol in the lower left of the SummaryStatistics actor. [Clearly we >> need a better error message!]. R is included with the installer >> version of Kepler for Windows, but not for Linux or MacOS. You can >> find a version of R to install for the Mac or Linux at >> www.r-project.org. Just install it and the workflow should run (as >> long as you can enter 'R' on a command line and start the R program). >> >> Dan Higgins - NCEAS >> >> Kurt Stockinger wrote: >> >>> Hi, >>> >>> I seem to have problems with the workflow 00-StatisticalSummary in >>> demos/getting-started. I always get a null pointer exception: >>> >>> java.lang.NullPointerException >>> at org.ecoinformatics.seek.R.RExpression.fire(RExpression.java:474) >>> at ptolemy.actor.AtomicActor.iterate(AtomicActor.java:337) >>> at >>> ptolemy.actor.sched.StaticSchedulingDirector.fire(StaticSchedulingDirector.java:170) >>> >>> >>> at ptolemy.actor.CompositeActor.fire(CompositeActor.java:331) >>> at ptolemy.actor.Manager.iterate(Manager.java:668) >>> at ptolemy.actor.Manager.execute(Manager.java:327) >>> at ptolemy.actor.Manager.run(Manager.java:1044) >>> at ptolemy.actor.Manager$3.run(Manager.java:1085) >>> >>> I've download Kepler and tested it both on Linux and MacOS X. In both >>> cases I get the same results. >>> >>> Does this workflow require R? >>> >>> Thanks, >>> Kurt >>> >>> _______________________________________________ >>> Kepler-users mailing list >>> Kepler-users at ecoinformatics.org >>> http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-users >>> >>> >>> >> > > >
