[kepler-users] Problems with Sample Workflow 1

[Kurt Stockinger]

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
>>>
>>>   
>>>       
>>     
>
>
>