Good Day All,
I am working on some xyplots using the Lattice Library. My X-axis is
the date and I am reproducing charts similar to those found in the R
Gallery (see here:
http://www.sr.bham.ac.uk/~ajrs/R/gallery/plot_midday_weather_profiles.txt)
However, the key difference is that some of my data is missing (not
collected at that time). For instance, I might have a whole month that
I do not have data. The problem is that xyplot connects the data points.
To continue with the R Gallery plot example, if your Outside Temperature
data stopped at 20 degrees in March 2007 and picked back up in July 2007
at 20 degrees you would have a straight line connecting the two data
points (at 20 degrees). I would rather have no line which would (in my
opinion) better represent that no data was collected for that time period.
I am curious to know if anyone has a idea of how to alter this behavior
so that the lines are not connected when data are missing in the
series. I am hoping there is an easy or slick solution but as I started
to think about it, it might be rather complex because you'd need to tell
xyplot what granularity you'd like to not connect (e.g. 5 hours in a
row, 4 days in a row, etc).
Any help would be much appreciated !
--
-Don
Don Catanzaro, PhD
Landscape Ecologist
dgcatanzaro at gmail.com
16144 Sigmond Lane
Lowell, AR 72745
479-751-3616
