[kepler-dev] [Bug 2959] - Need for Multiport input for RExpression actor

[bugzilla-daemon@ecoinformatics.org]

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=2959


leinfelder at nceas.ucsb.edu changed:

           What    |Removed                     |Added
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         AssignedTo|higgins at nceas.ucsb.edu      |leinfelder at nceas.ucsb.edu
             Status|ASSIGNED                    |NEW




------- Comment #1 from leinfelder at nceas.ucsb.edu  2008-02-07 16:14 -------
I propose (and have made the modification locally) that an RExpression actor
with a multi port should:
1. handle input from all of its channels
2. create variables available in R that are named after the _upstream_ source
of the data for each channel.

In the case of multiports, the name of the input port of the RExpression actor
will be ignored, and only the upstream name (the name of the output source
port) will be used.
This allows an EML actor to feed as many "column as vector" structures into the
RExpression actor and also preserves the names of the columns from the EML
source (think about plot() and axis labeling and how cool that will be!).