OK I think I have learned a little. The following code seems to flush the output properly, and sends it to the current cell.
r.postscript(os.curdir+'/out.ps') r.par(ann=0) values = [x for x in srange(0,float(pi),.1)] r.plot(values, [sin(x) for x in values], type='lines') r.dev_off() On Jan 24, 10:46 am, mhampton <[EMAIL PROTECTED]> wrote: > I am interested in helping with this, since I'd like to impress my > statistics colleagues at some point with what sage can do. > > As I wrote in another thread, it seems that the graphics output of R > in sage is set when you first create a plot. The output is sent to > Rplots.ps. After that, further plots are appended to the original > (which is definitely not desired behavior). So somehow R has to be > told to change the output to go to os.curdir. Within R, it looks like > these options are controlled by commands within the grDevices package, > which has commands like > > postscript(file = ifelse(onefile, "Rplots.ps", "Rplot%03d.ps"), > onefile = TRUE, family, title = "R Graphics Output", fonts = NULL, > encoding, bg, fg, width, height, horizontal, pointsize, paper, > pagecentre, print.it, command, colormodel) > > and > > png(filename = "Rplots%03d.png", width = 480, height = 480, units = > "px", pointsize = 12, bg = "white", res = NA, ...) > > I would think we would want to switch to png from postscript. > > I'll look into it a bit more today. > > -Marshall Hampton > > On Jan 24, 9:48 am, "William Stein" <[EMAIL PROTECTED]> wrote: > > > On Jan 24, 2008 7:32 AM, Jacob Hicks <[EMAIL PROTECTED]> wrote: > > > > After playing with histograms for a while in sage, I have started to delve > > > into the source and documentation of rpy. I want to make it work more > > > seamlessly with sage than it does now. My first priority, which would be > > > of > > > immediate use to me in the classroom, is to make rpy graphics insert > > > themselves into the notebook interface in a manner similar to the behavior > > > matplot has now. Depending on how that goes, I may also want to clean up > > > the way rpy interacts with sage in general and work on using R extensions. > > > Just a quick remark. The way that notebook images work is that > > all png, jpg, etc. images that get output to os.curdir when a cell > > gets evaluated, will *automatically* appear as images embedded > > in the notebook. You don't have to do anything else but that. > > > E.g., if you have a command foo such that foo(filename) writes > > an image to the file with name filename, then > > > foo(os.curdir + '/image.png') > > > will result in an image being embedded in the notebook. Simple > > as that. > > > > I have a computer science background, but am a little rusty and have never > > > worked on a major project in python. This makes working on sage seem > > > daunting. I have looked over the programmer's guide but am still not > > > quite > > > sure how everything works. Are there any other good places to search for > > > help about sage's overall structure / getting started in a project like > > > this > > > one? > > > You of course need to read the Python tutorial if you haven't already. > > Also, the Sage programming guide is supposed to be what you want > > (though whether it is is arguable): > > http://sagemath.org/doc/html/prog/index.html > > > William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
