[kepler-users] Query with the Expression actor

[Matt Jones]

Harini,

The expression actor simply evaluates the expression, and places the result
on the output port.  So, if you have two ports (a1, a2) and the incoming
value to a1 is 3 and incoming value of a2 is 5, then the expression 'a1'
will output 3 on the output port, and the expression 'a1 + a2' will output 8
on the output port.  See the attached figure for an illustration.  Maybe I'm
missing the point of your question?

Matt

On Thu, Mar 18, 2010 at 12:36 PM, <hriyer at ncsu.edu> wrote:

> Hi,
>
> I had a query regarding the expression actor. Consider a scenario, where I
> have an expression actor with 2 input ports, a1 and a2, and one output
> port. The expression in the actor simply says a1, What is that supposed to
> mean? a1 and a2 given as inputs are simply some strings that represent a
> filename or something similar. So if the expression in the Expression
> actor is the name of the input port, what does that mean?
>
> Thanks,
> Harini
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> Kepler-users at kepler-project.org
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