Thanks Uwe, The patched 2.13.2 solves this issue. Best, Justin M. Balko, Pharm.D., Ph.D. Research Fellow, Arteaga Lab Department of Medicine Division of Hematology/Oncology Vanderbilt University 777 Preston Research Building Nashville TN, 37232-6307 Ph: 615-936-1495
-----Original Message----- From: Uwe Ligges [mailto:lig...@statistik.tu-dortmund.de] Sent: Saturday, October 01, 2011 8:45 AM To: Balko, Justin Cc: dcarl...@tamu.edu; r-help@r-project.org Subject: Re: [R] Odd gridding pattern when plotting I think you found a bug introduced in R-2.13.x that has been fixed in R-2.13.2 which has been released yesterday. Best, Uwe Ligges On 30.09.2011 21:36, Balko, Justin wrote: > Thanks, that kind of helps. However, some of my previous code uses functions > like heatmap.2 which has multiple images (legend/color key) as well as the > actual heatmap. Employing useRaster=TRUE here only applies to the heatmap > and not the legend. Not a huge deal. Is there anyway to set an option in R > to always use rastering when drawing in the interface? > Thanks again, > Justin > > -----Original Message----- > From: David L Carlson [mailto:dcarl...@tamu.edu] > Sent: Friday, September 30, 2011 1:54 PM > To: Balko, Justin; r-help@r-project.org > Subject: RE: [R] Odd gridding pattern when plotting > >> From ?image > > " Images for large z on a regular grid are more efficient with useRaster > enabled and can prevent rare anti-aliasing artifacts, but may not be > supported by all graphics devices." > > Adding useRaster=TRUE to the two image() calls gets rid of the white grid > lines. > > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of Balko, Justin > Sent: Friday, September 30, 2011 10:43 AM > To: r-help@r-project.org > Subject: [R] Odd gridding pattern when plotting > > > Hi, I'm no longer on the subscribing list, but was hoping to get my question > posted. Please inform if this is ok, although I am guessing you wont post > with the image below. If so, let me know and I will resend without the image. > Thanks > > > Hi, > I just upgraded my system and my version of R all at once. Upon running old > code for heatmaps etc, I suddenly notice that there is an odd grid pattern > appearing in all of my plots. An example is below: > > #example from ?image > > require(grDevices) # for colours > x<- y<- seq(-4*pi, 4*pi, len=27) > r<- sqrt(outer(x^2, y^2, "+")) > image(z = z<- cos(r^2)*exp(-r/6), col=gray((0:32)/32)) image(z, axes = FALSE, > main = "Math can be beautiful ...", > xlab = expression(cos(r^2) * e^{-r/6})) contour(z, add = TRUE, > drawlabels = FALSE) > > > > Any ideas what is causing this? I can't seem to figure it out. I'm not sure > the bmp image can/will be posted, so maybe you can just take my word for it. > It is a gridding pattern in white, that appears over the plot area only. > Vertical lines are every 4 units, evenly spaced. Horizontal lines appear at > every unit, then stop for a while (6-7 units, then appear every unit for 4-5 > units). Simple plots like plot(x,y) do not seem to produce it, or at least I > can't see it. Any ideas are helpful. > Thanks! > > > Justin M. Balko, Pharm.D., Ph.D. > Research Fellow, Arteaga Lab > Department of Medicine > Division of Hematology/Oncology > Vanderbilt University > 777 Preston Research Building > Nashville TN, 37232-6307 > Ph: 615-936-1495 > > ______________________________________________ > 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.
