OK, here is my take on R plots: http://sagecell.sagemath.org/?z=eJwryMkv0SjKyy_K1TA0MNDU5OUqwBDJKkhN1yjPTCnJsDUGimBTUpCSpoFdAkMkOTGzKD8epCE_LzUtMyfV1s3RJ9iVSN3FZekaIE15ibmptkrOpcUl-bl6QEElrKoB67NCZQ==&lang=r
SageMathCell now defaults to producing SVG plots in R and displays all automatic plots that it can (BMP, JPEG, PNG, SVG). Users are free to start new plotting devices, pass any options to them, and create multiple plots in the same cell. Plots with custom names or harder formats like PDF will be provided as links only. With SageMathCloud approach you cannot change format and changing options is done not from R code using R commands, you are also limited to a single plot displayed automatically. The code above does not show any plots at all in the cloud. What had to be done: 1) R interface is recreated after each forking (via "r=R()" command) to make sure that a new working directory is picked up. Would be great if interfaces followed changing directories of the main process, but I don't know how feasible that is. 2) There is site configuration file installed into R in Sage setting two options including default graphing device SVG. In Sage R interface is prohibited from picking up configuration from anywhere and device is forced in addition - I had to change it and I think it makes a lot of sense to change it for Sage itself. 3) After each R cell is executed, all graphic devices are now closed and plots with default R names are shown automatically if possible. (Everything else gets a link to.) R plots produced not in "R cells" will be always linked to only, without auto display - this is similar to cloud showing plots only if r-decorator was used. Andrey On Monday, 26 October 2015 10:27:23 UTC-6, William wrote: > > On Mon, Oct 26, 2015 at 7:39 AM, kcrisman <kcri...@gmail.com <javascript:>> > wrote: > >> > >> > >> I wish to be able to plot in Octave/R inside a sagecell. > >> Therefore, I just set up a sagecell server using the instructions here > >> https://github.com/sagemath/sagecell > >> > >> > >> I compiled my own sagecell server because when you use > >> https://sagecell.sagemath.org > >> you get the following when trying to plot in R: > >> "Error in png() : X11 is not available" > >> > >> > https://sagecell.sagemath.org/?z=eJwryMkv0UjWMNRRMNZRMNNRMNFRsNTUBABEDAT8&lang=r > > >> and in Octave you only get a Ascii plot > >> > https://sagecell.sagemath.org/?z=eJwryMkv0Yg21DGM1QQAFu8DVw==&lang=octave > >> > >> Using my own server plotting in R gives me nothing > >> (not even "Error in png() : X11 is not available") > >> and Octave still gives me only Ascii. > >> > >> I have two related questions: > >> 1. Is it possible to get R plots in sagecell? > >> > > > > It should be. > http://www.dan-erik.com/phdblog/2013/05/using-sage-with-r/ > > might be helpful. > > > > But http://statisfactions.com/2013/interactive-r-code-widget/ used to > work > > and doesn't any more, so that doesn't bode well. Andrey, did you maybe > use > > a version of Sage compiled without png support for R? Unfortunately > even > > the comment on that page no longer works. > > > > The graphics work with > > pdf("Figname.pdf") > > plot(...) > > dev.off() > > Requiring the user to actually do that is a disaster regarding > usability. In SageMathCloud I just make it automatic. E.g.,doing > this just works: > > %r > cars <- c(1, 3, 6, 4, 9) > plot(cars, type="o", col="blue") > title(main="Autos", col.main="red", font.main=4) > > See: > > > https://cloud.sagemath.com/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/files/support/2015-10-26-092322-r-plot.sagews > > > I don't think I've done the analogous thing for Octave yet, but should. > > The way it works is by making %r *slower* when used interactively, by > having it check to see if a new graphic was created each time it runs, > and if so, displaying it. The codes all open source. Sage Cell > server should be changed to do the same, in my opinion. However, > leave the sage library's r.eval itself alone, since doing the above > would slow it down. > > William > > > -- > William (http://wstein.org) > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
