On Tue, Apr 3, 2012 at 6:22 PM, Peter Ehlers <ehl...@ucalgary.ca> wrote: > On 2012-04-03 15:49, ilai wrote: >> >> Try to plot the points first followed by vis.gam(...,type='contour', >> color='bw', add=T) instead of vis.gam followed by points. >> >> HTH > > > Or, if vis.gam gives you default scales that you wish to preserve, > then just replot the contours over the points with > > vis.gam(....., add = TRUE) > > Peter Ehlers
I would say no. This works as a quick and dirty but as a general rule, in my view "replot" should be discouraged because of the reduced print quality of the visible elements from the original. Maybe a minor issue, but annoying to give a presentation and realize labels in the plot are all fuzzy when projected on the big screen (never happened to me of course, I'm talking about a friend...:). To preserve the scales in this case would be better to explicit set limits plot(...,pch=19,xlim,ylim) ; vis.gam(....., add = TRUE) rather than vis.gam() points() vis.gam() Cheers > >> >> >> On Tue, Apr 3, 2012 at 2:48 PM, Ravi Varadhan<rvarad...@jhmi.edu> wrote: >>> >>> Hi, >>> >>> Please see the attached contour plot (I am sorry about the big file). >>> This was created using the vis.gam() function in "mgcv" package. However, >>> my question is somewhat broader. >>> >>> In generating this figure, I first created the contours using vis.gam() >>> and then I plotted the points. These point are plotted on top of the >>> contours so that some of the contour lines are only partially visible. Is >>> there a way to make the contour lines fully visible? I cannot reverse the >>> order and plot the points first and then call vis.gam(). Or, can I? Are >>> there other options? >>> >>> Thanks for any help or hints. >>> >>> Best, >>> Ravi >>> >>> >>> Ravi Varadhan, Ph.D. >>> Assistant Professor >>> The Center on Aging and Health >>> Division of Geriatric Medicine& Gerontology >>> >>> Johns Hopkins University >>> rvarad...@jhmi.edu<mailto:rvarad...@jhmi.edu> >>> 410-502-2619 >>> >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-help >>> PLEASE do read the posting guide >>> http://www.R-project.org/posting-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >>> >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.