[kepler-users] Kepler-R basic question

[Hurlbert, Allen Hartley]

Hey Ben,

Sorry for my poor question-asking etiquette.

I'm running Kepler 2.2 on Windows XP x64. I've got R 2.13.1 installed.

Yes, the demos run fine (although I'll note that finding the demo files took some work; the "getting-started-guide" specified the "demos/getting-started" directory and it would have been useful to know the more complete path: "Kepler-2.2/outreach-2.2.0/workflows/demos/getting-started").

The workflow and input file are attached.

When I open a Command Prompt, I am in the directory C:\Documents and Settings\Hurlbert. Typing 'R' here does not run R.

I assume this is an easily fixable issue. In addition, any general comments about how I went about constructing the basic workflow would be useful. I'm assuming there are other errors that will crop up!

Hope all's well in SB!
Allen

-----Original Message-----
From: ben leinfelder [mailto:leinfelder at nceas.ucsb.edu] 
Sent: Friday, November 11, 2011 11:52 AM
To: Hurlbert, Allen Hartley
Cc: kepler-users at kepler-project.org
Subject: Re: [kepler-users] Kepler-R basic question

Hi Allen!
A few questions for you: 
a) can you run any of the getting started demo RExpression workflows that are included with Kepler? (e.g. 05-LinearRegression.xml)
b) what version of Kepler are you using and on which operating system?
c) could you provide us your sample workflow?

If you can run R from the command line by simply typing "R", then chances are good it's already in your PATH.
-ben

On Nov 11, 2011, at 7:29 AM, Hurlbert, Allen Hartley wrote:

> Apologies for the basic question, but I'm brand new to Kepler.
>  
> Trying to create a basic workflow that reads in some data from a local text file (using ReadTable), manipulates it a bit (using an RExpression actor), and generates a plot.
>  
> However, it seems to be having trouble locating R (error message: "Problem writing input. There has been a problem running the R script! It may be due to an error in your script, ..., or it may not be on your path and cannot be located by Kepler... Because: the pipe has been ended.").
>  
> I definitely have R installed on my machine. The referenced section of the User Manual, states "the R 'bin' directory must be added to the PATH variable on the host computer." I'm not sure how to do this. I can see in the Tools>Check System Settings that PATH = env.PATH, but am unsure whether this is what I'm supposed to set, and if so, how.
>  
> Thanks in advance,
> Allen
>  
> _______________________________________________
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> Kepler-users at kepler-project.org
> http://lists.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users

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