On Mar 23, 2012, at 2:15 PM, Paul Miller wrote:
Hi Michael and Petr,
Apologize for my failure to grasp what you were saying. My code is
up and running now.
Noticed what might be a shortcoming of my ggplot code. I have some
instances where a drug starts and stops and then starts and stops
again. It looks like my graphs show just a single unbroken line
segment though.
Put in NA entries at times you do not want plotted. Not sure exactly
how that gets handled in ggplot but since plotting nothing was the
"usual" behavior in base and lattice graphics, I would think that
would have gotten carried over.
I ordered Hadley Wickham's ggplot2 book earlier today. So hopefully
I'll be able to figure that out myself once the book arrives.
Thank you Michael, Petr, and Bert for your help with this. Thanks
especially to Michael for patiently answering all my questions over
the last day or so.
Paul
David Winsemius, MD
West Hartford, CT
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