Re: [R] Ignore escape characters in a string...
Thanks all, I'll try some of these suggestions out but it seems like a raw string ability could come in helpful -- there aren't any packages out there that have this capability? --j On Tue, Apr 8, 2014 at 1:23 PM, Jeff Newmiller jdnew...@dcn.davis.ca.us wrote: What is wrong with winpath - readLines(clipboard ) ? If you want to show that as a literal in your code, then don't bother assigning it to a variable, but let it echo to output and copy THAT and put it in your source code. There is also file.choose()... --- Jeff NewmillerThe . . Go Live... DCN:jdnew...@dcn.davis.ca.usBasics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/BatteriesO.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --- Sent from my phone. Please excuse my brevity. On April 8, 2014 8:00:03 AM PDT, Jonathan Greenberg j...@illinois.edu wrote: R-helpers: One of the minor irritations I have is copying paths from Windows explorer, which look like: C:\Program Files\R\R-3.0.3 and using them in a setwd() statement, since the \ is, of course, interpreted as an escape character. I have to, at present, manually add in the double slashes or reverse them. So, I'd like to write a quick function that takes this path: winpath - C:\Program Files\R\R-3.0.3 and converts it to a ready-to-go R path -- is there a way to have R IGNORE escape characters in a character vector? Alternatively, is there some trick to using a copy/paste from Windows explorer I'm not aware of? --j -- Jonathan A. Greenberg, PhD Assistant Professor Global Environmental Analysis and Remote Sensing (GEARS) Laboratory Department of Geography and Geographic Information Science University of Illinois at Urbana-Champaign 259 Computing Applications Building, MC-150 605 East Springfield Avenue Champaign, IL 61820-6371 Phone: 217-300-1924 http://www.geog.illinois.edu/~jgrn/ AIM: jgrn307, MSN: jgrn...@hotmail.com, Gchat: jgrn307, Skype: jgrn3007 __ 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] Ignore escape characters in a string...
R-helpers: One of the minor irritations I have is copying paths from Windows explorer, which look like: C:\Program Files\R\R-3.0.3 and using them in a setwd() statement, since the \ is, of course, interpreted as an escape character. I have to, at present, manually add in the double slashes or reverse them. So, I'd like to write a quick function that takes this path: winpath - C:\Program Files\R\R-3.0.3 and converts it to a ready-to-go R path -- is there a way to have R IGNORE escape characters in a character vector? Alternatively, is there some trick to using a copy/paste from Windows explorer I'm not aware of? --j -- Jonathan A. Greenberg, PhD Assistant Professor Global Environmental Analysis and Remote Sensing (GEARS) Laboratory Department of Geography and Geographic Information Science University of Illinois at Urbana-Champaign 259 Computing Applications Building, MC-150 605 East Springfield Avenue Champaign, IL 61820-6371 Phone: 217-300-1924 http://www.geog.illinois.edu/~jgrn/ AIM: jgrn307, MSN: jgrn...@hotmail.com, Gchat: jgrn307, Skype: jgrn3007 __ 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] Ignore escape characters in a string...
On Tue, Apr 8, 2014 at 4:00 PM, Jonathan Greenberg j...@illinois.eduwrote: C:\Program Files\R\R-3.0.3 Does R on windows have clipboard support? I can do this on Linux: readLines(file(clipboard)) [1] C:\\Program Files\\R\\R-3.0.3 - that's from a copy of a path with only single slashes in. But help(connections) on my linux system doesn't mention the Windows clipboard Some ppl on SO have assorted solutions involving Windows scripting tools that tweak the clipboard so you can Ctrl-V a modified value: http://stackoverflow.com/questions/1407238/relief-from-backslash-irritation-in-r-for-windows Barry [[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.
Re: [R] Ignore escape characters in a string...
Yes R on Windows have something like that you mentioned. I have only tried it in conjunction with read.table. I'm a bit surprised about the \\ on a linux OS. I'm also surprised that in a file manager on Windows you can paste e.g. C:/users/frtog/Desktop and it can find its way to the folder. Weird. Br. Frede Sendt fra Samsung mobil Oprindelig meddelelse Fra: Barry Rowlingson Dato:08/04/2014 17.20 (GMT+01:00) Til: Jonathan Greenberg Cc: r-help Emne: Re: [R] Ignore escape characters in a string... On Tue, Apr 8, 2014 at 4:00 PM, Jonathan Greenberg j...@illinois.eduwrote: C:\Program Files\R\R-3.0.3 Does R on windows have clipboard support? I can do this on Linux: readLines(file(clipboard)) [1] C:\\Program Files\\R\\R-3.0.3 - that's from a copy of a path with only single slashes in. But help(connections) on my linux system doesn't mention the Windows clipboard Some ppl on SO have assorted solutions involving Windows scripting tools that tweak the clipboard so you can Ctrl-V a modified value: http://stackoverflow.com/questions/1407238/relief-from-backslash-irritation-in-r-for-windows Barry [[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. [[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.
Re: [R] Ignore escape characters in a string...
Hello, There is support for the clipboard on Windows 7. Also, note that on Windows your solution leaves a connection open so maybe the following is better. # copy the next line C:\Program Files\R\R-3.0.3 clipb - file(clipboard) winpath - readLines(clipb) close(clipb) And, just to avoid backslashes altogether, fun - function(x) gsub(, /, x) fun(winpath) Hope this helps, Rui Barradas Em 08-04-2014 16:17, Barry Rowlingson escreveu: On Tue, Apr 8, 2014 at 4:00 PM, Jonathan Greenberg j...@illinois.eduwrote: C:\Program Files\R\R-3.0.3 Does R on windows have clipboard support? I can do this on Linux: readLines(file(clipboard)) [1] C:\\Program Files\\R\\R-3.0.3 - that's from a copy of a path with only single slashes in. But help(connections) on my linux system doesn't mention the Windows clipboard Some ppl on SO have assorted solutions involving Windows scripting tools that tweak the clipboard so you can Ctrl-V a modified value: http://stackoverflow.com/questions/1407238/relief-from-backslash-irritation-in-r-for-windows Barry [[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-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] Ignore escape characters in a string...
On Tue, Apr 8, 2014 at 4:30 PM, Frede Aakmann Tøgersen fr...@vestas.comwrote: I'm a bit surprised about the \\ on a linux OS. I'm also surprised that in a file manager on Windows you can paste e.g. C:/users/frtog/Desktop and it can find its way to the folder. Weird. Well, the clipboard contained a path separated by single backslashes. R read that (via the file(clipboard)) and correctly read single backslashes. Its only when printed out that R 'escapes' them as double-backslashes - there's really only one character there. What R seems to lack is 'raw string' functionality. In python you do this with a string quote prefix, for example 'r': len(\t) 1 In that case the \t is interpreted as a single character, \t, or tab. Add the r modifier: len(r\t) 2 and now you get two characters, backslash and t. You'll often see regular expressions in Python using raw strings since they tend to contain slashes and backslashes which you really want in there. Barry [[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.
Re: [R] Ignore escape characters in a string...
Thank you Barry, this explains some of the things going on on the different platforms. One of my colleague told me some time ago that in C#/.NET they have this raw string functionality as you call it. However there they use @ and not r. That could be a nice thing to have in R. Yours sincerely / Med venlig hilsen Frede Aakmann Tøgersen Specialist, M.Sc., Ph.D. Plant Performance Modeling Technology Service Solutions T +45 9730 5135 M +45 2547 6050 fr...@vestas.commailto:fr...@vestas.com http://www.vestas.comhttp://www.vestas.com/ Company reg. name: Vestas Wind Systems A/S This e-mail is subject to our e-mail disclaimer statement. Please refer to www.vestas.com/legal/noticehttp://www.vestas.com/legal/notice If you have received this e-mail in error please contact the sender. From: b.rowling...@gmail.com [mailto:b.rowling...@gmail.com] On Behalf Of Barry Rowlingson Sent: 8. april 2014 17:40 To: Frede Aakmann Tøgersen Cc: Jonathan Greenberg; r-help Subject: Re: [R] Ignore escape characters in a string... On Tue, Apr 8, 2014 at 4:30 PM, Frede Aakmann Tøgersen fr...@vestas.commailto:fr...@vestas.com wrote: I'm a bit surprised about the \\ on a linux OS. I'm also surprised that in a file manager on Windows you can paste e.g. C:/users/frtog/Desktop and it can find its way to the folder. Weird. Well, the clipboard contained a path separated by single backslashes. R read that (via the file(clipboard)) and correctly read single backslashes. Its only when printed out that R 'escapes' them as double-backslashes - there's really only one character there. What R seems to lack is 'raw string' functionality. In python you do this with a string quote prefix, for example 'r': len(\t) 1 In that case the \t is interpreted as a single character, \t, or tab. Add the r modifier: len(r\t) 2 and now you get two characters, backslash and t. You'll often see regular expressions in Python using raw strings since they tend to contain slashes and backslashes which you really want in there. Barry [[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.
Re: [R] Ignore escape characters in a string...
What is wrong with winpath - readLines(clipboard ) ? If you want to show that as a literal in your code, then don't bother assigning it to a variable, but let it echo to output and copy THAT and put it in your source code. There is also file.choose()... --- Jeff NewmillerThe . . Go Live... DCN:jdnew...@dcn.davis.ca.usBasics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/BatteriesO.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --- Sent from my phone. Please excuse my brevity. On April 8, 2014 8:00:03 AM PDT, Jonathan Greenberg j...@illinois.edu wrote: R-helpers: One of the minor irritations I have is copying paths from Windows explorer, which look like: C:\Program Files\R\R-3.0.3 and using them in a setwd() statement, since the \ is, of course, interpreted as an escape character. I have to, at present, manually add in the double slashes or reverse them. So, I'd like to write a quick function that takes this path: winpath - C:\Program Files\R\R-3.0.3 and converts it to a ready-to-go R path -- is there a way to have R IGNORE escape characters in a character vector? Alternatively, is there some trick to using a copy/paste from Windows explorer I'm not aware of? --j __ 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.
