Dear Laurent
for numeric x variables, you could try jitter:
xyplot(y~jitter(x,0.5))
Cheers
Christoph
Am 20.06.2014 21:45, schrieb Laurent Rhelp:
Hi,
I like to use with xyplot (package lattice) the groups argument and
superpose.symbol to compare several curves. But, when there are a
great many points, the symbols are very close and the graph becomes
unreadable. Would there be an argument or a tip not to draw all the
symbols, for example the symbols could be drawn only every x points, x
given as an argument ?
Thanks
Best regards
Laurent
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