Re: EZGraph Query

[Marcus G. Daniels]

>>>>> "PJ" == Paul E Johnson <address@hidden> writes:

PJ> I believe that if we make it possible for the user to
PJ> indicate which data stream to use, the users will fix their
PJ> classes to match my scheme. But I understand your point, you'd
PJ> like to let them pass a selector and a parameter (argument).  At
PJ> least I think that's what you say.

What I'm saying is that you can get the same thing as -getDataKey: wtih
selector arrays like this:

SEL foo[2] = { M(foo), M(bar) };

This is different than from saying having a probe method like:

-(double)scaledValue: (double)observerScale 

because `scale' would passed in by the observer, not provided by the
observed.

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