On Oct 8, 2011, at 4:59 AM, Allan Sikk wrote:
Hello,
I'm trying to plot connected time series of two variables in a
lattice plot:
xyplot(y1 + y2 ~ t, data=size, type="b")
y2 has missing data for some of the observations and some points are
therefore not connected. It would make theoretical sense to connect
the
points - is there a way of doing that? (Without filling the
obserations
using package 'zoo').
Can't you just use:
xyplot(y1 + y2 ~ t, data=size, subset = !is.na(y2) )
Thanks,
Allan
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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