[kepler-users] Add port to an actor

[Dan Higgins]

Hi,
    You can also add ports to the RExpression actor and those ports are 
used to input and output parameters. The RExpression actor is included 
with Kepler but you do need to also install R. I have attached a draft 
document on how to use the RExpession actor.

    Unfortunately, you can add ports to any actor although in most cases 
the added port has no function since the actor code never looks for it. 
This has caused confusion for several new Kepler users.

Dan Higgins

Edward A. Lee wrote:

>If you use the Expression actor, then you can add functionality
>without writing Java code.  The Matlab and Python actors also
>support adding functionality without writing Java, but I think
>those are not included by default in Kepler.  Otherwise, you
>need to define a new actor in Java.
>
>Edward
>
>At 05:15 AM 4/3/2006, Ming George wrote:
>  
>
>>Hi,
>>
>>I added some ports to an actor using the 
>>"configure port" menu of the actor. Does it mean 
>>that I can also tell the actor how to process 
>>the data from the port (in another word, can I 
>>add functionality to that actor through this GUI as weel)? How should I do it?
>>
>>I think there should be some document about this issue, where can I find them?
>>
>>Thanks
>>
>>George
>>
>>
>>Talk is cheap. Use Yahoo! Messenger to make 
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>>    
>>
>
>------------
>Edward A. Lee
>Professor, Chair of the EE Division, Associate Chair of EECS
>231 Cory Hall, UC Berkeley, Berkeley, CA 94720
>phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845
>eal at eecs.Berkeley.EDU, http://ptolemy.eecs.berkeley.edu/~eal  
>
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>  
>


-- 
*******************************************************************
Dan Higgins                                  higgins at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Ph: 805-893-5127
National Center for Ecological Analysis and Synthesis (NCEAS) Marine Science Building - Room 3405
Santa Barbara, CA 93195
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