This is what I would like to do and it works just fine.  Is there a way to
shorten this code so I don't have to subset a subset of a subset?

d<-subset(subset(subset(subset(x, River.Mile<=202), River.Mile>3),
Lagrangian=="Yes"), EventType=="Regular")

Stephen
-- 
Let's not spend our time and resources thinking about things that are so
little or so large that all they really do for us is puff us up and make us
feel like gods. We are mammals, and have not exhausted the annoying little
problems of being mammals.

-K. Mullis

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