[R] Inspecting C code in an R package
Hello everyone, Trying to comprehend code of an R package, I encountered the problem that the interesting part of the function I'm inspecting is written in C-Code and called by .C(somename, ). Now I can't inspect the C-Code the function is calling since I can't find it in the folder of the package. Does someone know, where the corresponding C-Code ist stored, so I could inspect it and comprehend what is happening? Thank you very much in advance! Regards Roman -- View this message in context: http://r.789695.n4.nabble.com/Inspecting-C-code-in-an-R-package-tp3590596p3590596.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] Inspecting C code in an R package
Thank you Sarah for your quick answer! I've just downloaded the source package, but now I don't know in which file the C-Code is stored .C(somename,) is calling - there is no file with the name somename. How could one figure that out? -- View this message in context: http://r.789695.n4.nabble.com/Inspecting-C-code-in-an-R-package-tp3590596p3590641.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] Inspecting C code in an R package
Thank you! Of course, I will read the posting guidelines. A subscriber helped me via e-mail telling me to use the grep-command, that is type in: grep somename *.c. For Windows users it's: findstr somename *.c. -- View this message in context: http://r.789695.n4.nabble.com/Inspecting-C-code-in-an-R-package-tp3590596p3590744.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] Shrink file size of pdf graphics
Thank you very much for the tip! Using imagemagick i got an image of reasonable quality without making the file size that large. Regards Roman Von: quot;Philipp Pagel-5 [via R]quot; lt;ml-node+3537871-1637924423-125...@n4.nabble.comgt; Gesendet: 20.05.2011 09:50:42 An: Layman123 lt;romanhorn...@web.degt; Betreff: Re: Shrink file size of pdf graphics On Thu, May 19, 2011 at 01:35:51PM -0700, Layman123 wrote: gt; I tried both, the plot devices in R and pdftk. First I tried the png-device, gt; but as I wanted to increase the number of pixels with 'width' and 'height', gt; the labels are getting smaller When I really need a png, I usually produce a pdf or eps first and then convert to png of the desired resolution with the convert command of imagemagick (but of course any other software, like e.g. Photoshop, should work fine, too). That way I don't have to figure out the correct paramters to make the png the way I want it and I have the additional benetfit of a vector g! rpahics quot;master filequot; that I can esily use to produce addictional verison in differnent resolutions etc. gt; Is there a way to do this with the gs-command so that it would be even more gt; compressed? Possibly, but of course there is a limit to how much you can compress a file without resorting to lossy compression. You may have hit that limit. cu nbsp; nbsp; nbsp; nbsp; Philipp -- Dr. Philipp Pagel Lehrstuhl fuuml;r Genomorientierte Bioinformatik Technische Universitauml;t Muuml;nchen Wissenschaftszentrum Weihenstephan Maximus-von-Imhof-Forum 3 85354 Freising, Germany http://webclu.bio.wzw.tum.de/~pagel/ __ [hidden email] 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. If you reply to this email, your message will be added to the discussion below: http://r.78! 9695.n4.nabble.com/Shrink-file-size-of-pdf-graphics-tp3536042p3537871. html To unsubscribe from Shrink file size of pdf graphics, click here . -- View this message in context: http://r.789695.n4.nabble.com/Shrink-file-size-of-pdf-graphics-tp3536042p3542242.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]] __ 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] Shrink file size of pdf graphics
Hi everyone, My data consists of a system of nearly 75000 roads, available as a shapefile. When I plot the road system, by adding the individual roads with 'lines' and store it as a pdf-file with 'pdf' I get a file of size 13 MB. This is way too large to add it in my LaTeX-document, because there will be some more graphics of this type. Now I'm curious to learn wheter there is a possibility in R to shrink the file size of this graphic? I merely need it in a resolution so that it looks smooth when printed out. I don't know much about the storage of R graphics, but maybe there is a way to change the way the file is stored perhaps as a pixel image? Thank you very much in advance! Any tips are appreciated much! Regards Roman -- View this message in context: http://r.789695.n4.nabble.com/Shrink-file-size-of-pdf-graphics-tp3536042p3536042.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] Shrink file size of pdf graphics
Thank you all for the quick answers! I googled first instead of having the idea to search this forum... I'm using R 2.12.2 on a 32-bit Computer with windows installed. Up to this point I was trying to get the image the way I would like to have it, but didn't get fully satisfactory results. I tried both, the plot devices in R and pdftk. First I tried the png-device, but as I wanted to increase the number of pixels with 'width' and 'height', the labels are getting smaller. Yet attempting to prohibit this manually with 'cex' doesn't give satifactory results. Searching the list I read about the package 'cairoDevice' that would prevent this, increasing only the resolution of the image and changing nothing about the size of the objects in the plot. After I managed to install it, I got an error trying to open a 'Cairo'-device. I probably missed to install something. The CRAN-page doesn't state anything on how to do this. Is there a way in R to produce images with high resolution? Using pdftk I managed to compress the file size from 13 MB to 3,6 MB. This is really a good compression. However I would need an even smaller file size. Unfortunately I saw your post very late, Aaron. With this command, a pdf of size 3,4 MB was produced. pdftk doesn't seem to offer any options to take influence on how much the pdf is compressed. Is there a way to do this with the gs-command so that it would be even more compressed? -- View this message in context: http://r.789695.n4.nabble.com/Shrink-file-size-of-pdf-graphics-tp3536042p3536850.html Sent from the R help mailing list archive at Nabble.com. __ 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] fit a marked poisson process using a quadrature scheme with 'spatstat'
Hello everyone, My data consists of marked points and several covariates, whereby the marks are the time points of the observations. The problem is, that one of the covariates is hard to handle as an image. This covariate represents the type of roads. As there aren't roads at every location of the map, one cannot specify the value of the covariate at any point on a grid, which is necessary to specify an image. To tackle this, I wanted to use a quadrature scheme and use points on the roads as dummy points instead of a data point pattern as the outcome variable. The problem I now encounter is, that I can't give marks to the dummy points, since they are no real observations (and omitting the marks gives an error). Does somebody know, what to do in such a situation? Thank you very much in advance! Any tips are appreciated much! Regards Roman -- View this message in context: http://r.789695.n4.nabble.com/fit-a-marked-poisson-process-using-a-quadrature-scheme-with-spatstat-tp3481480p3481480.html Sent from the R help mailing list archive at Nabble.com. __ 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.
