similar to: Characters vs. factors

Hello all, I wish to use read.csv to read a google doc spreadsheet. I try using the following code: data_url <- " http://spreadsheets0.google.com/spreadsheet/pub?hl=en&hl=en&key=0AgMhDTVek_sDdGI2YzY2R1ZESDlmZS1VYUxvblQ0REE&single=true&gid=0&output=csv " read.csv(data_url) Which results in the following error: Error in file(file, "rt") : cannot open

Start the REvolution without me... http://danesecooper.blogs.com/divablog/2009/10/start-the-revolution-without-me.html *From Danese Cooper's Blog* Some of you may have become aware of REvolution Computing<http://revolution-computing.com/>, a commercial open source company organized around the R Language<http://www.r-project.org/>, when I joined in March

Oftentimes, I see graphs on the web that *look* like they've been produced by R, but I can never be sure. Or can I? I notice that PostScript files include a "%%%Creator: R Software" line, but do R graphics drivers encode any identifying information in GIF or PNG files more commonly used on the web? And of so, would such evidence necessarily be obliterated in post-processing (e.g

Hello, I am attempting to create several plots based on "site" (~300 total) and am having trouble with the code. I simply want to create a plot using the code, plot(year, peak), for the following dataset. I would like for each site to be plotted on a separate page and the plots saved in a directory. Would a "foreach" loop work? I tried a "by" statement, but

Hi all - has anyone ot and experienced problems with R+. Have downloaded the trail and it will not work -does it need vista (like it says on the box!) Thanks glenn [[alternative HTML version deleted]]

Hi everyone, Thanks for the help in advance. I just want to know if there is absolutely any way of using multicore if my loop can't run in parallel as each iteration depends on the previous iteration. I have Windows R 2.9.2 and REvolution R Enterprise 2.0 for Windows 64 bit. I also have if necessary R on Ubuntu. 8gb of ram and a core 2 duo processor but I could use a quad core as well. Many

It runs more than twice as slowly using 8 core than using a single core in inverting large matrix. Tested on 8 core Windows XP 64 machine. > n = 1000 > n.simu = 100 > func1 = function() + { + x = rnorm(n*n) + dim(x)=c(n,n) + y = solve(x) + } > > setMKLthreads(1) > system.time(for(i in 1:n.simu) func1()) user system elapsed 69.48 2.42 71.91

I found the following document on making R packages. But it is old. I'm wondering if there is more current ones and hopefully more complete ones. http://biosun1.harvard.edu/courses/individual/bio271/lectures/L6/Rpkg.pdf

Hi, I was told to use "<-" instead of "=" in the mailing list. I am wondering what the difference between them? Regards, Peng

There are now several R geographic user groups, and a few have mailing lists on the R mailing list system. Thanks to Martin M, there's also a pointer to a page I'm maintaining to list/describe the groups. The page is at http://macnash.telfer.uottawa.ca/RUG.html Contact me if you have a listing. I'm prepared to wikify it if there is sufficient interest. John Nash

Dear all, I am totally confused by the following R output, but don't have a clue for it. > a <- 1 - 0.2 > a == 0.8 [1] TRUE > a <- 1 - 0.8 > a == 0.2 [1] FALSE > a <- 1 - 0.5 > a == 0.5 [1] TRUE > a <- 1 - 0.6 > a == 0.4 [1] TRUE > a <- 1 - 0.9 > a == 0.1 [1] FALSE My R version is Windows XP R version 2.8.1 (2008-12-22).

*(note*: This is an R community question, not a statistical nor coding question. Since this is my first time writing such a post, I hope no one will take offence of it.) Hello all, I will be attending useR 2009 next week, and was wondering if there are any of you who are *bloggers *intending to participate and report on useR 2009? If so - I would love to know your blogs URL so as to follow you.

Hi all, I have successfully built from source the 32-bit version of R on my Vista 64-bit box. I was hoping to graduate to a 64-bit version so I could analyze some larger data sets. I have 8gb RAM installed. I downloaded the latest 64-bit versions of Perl and MinGW but wasn't sure how to edit the source code to have it build using the 64-bit versions. I did change my PATH variable to

I write about R every weekday at?http://blog.revolution-computing.com . In case you missed them, here are some articles from the month of April of particular interest to r-help subscribers. Thanks to everyone who has been following the blog and sending me messages and/or leaving comments -- it always brightens my day to hear from readers! http://tinyurl.com/cy7x9a?(from April 1) announced the new

On Mon, Sep 21, 2015 at 2:48 PM, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > On 21/09/2015 4:50 PM, Herv? Pag?s wrote: >> Hi, >> >> Note that one significant change to read.dcf() that happened since R >> 3.0.2 is the addition of support for arbitrary long lines (commit >> 63281), which never worked: >> >> dcf <- paste(c("aa:

For those who don't follow Ubuntu development carefully, the first Beta for the next Ubuntu was recently released, so I took my home system and upgraded to help out with filing bugs, etc. Just to be clear, I am not looking for help with the upgrade process. I've had R, and a few miscellaneous CRAN packages installed on this computer for years. Today, when I loaded an R session I had

For those who don't follow Ubuntu development carefully, the first Beta for the next Ubuntu was recently released, so I took my home system and upgraded to help out with filing bugs, etc. Just to be clear, I am not looking for help with the upgrade process. I've had R, and a few miscellaneous CRAN packages installed on this computer for years. Today, when I loaded an R session I had

I write about R every weekday at http://blog.revolution-computing.com . In case you missed them, here are some articles from last month of particular interest to R users. http://bit.ly/tygLz announced the release of the "foreach" and "iterators" packages on CRAN, for simple scalable parallel programming in R. http://bit.ly/FDS67 linked to Thomas Levin's Joy-Division-esque

Hi, everybody. Sorry to bring up the subject again but I have visited the revolution computing web page, but its not clear when or what will be the new release be. Does anybody have information about that?. Does anybody know if the version that will be released will be validated?. I have been reading the previous mails about validation and I work in a Pharma company and validation is a big

Hi, I have good understanding on Econometrics and statistical techniques. However, I am new to R. What would be the best way to learn R as I would be one of the few in my team started exploring R in your team. I have got a few downloads on R introduction, but I am not a FAN of online reading. Can some one guide me with some books on R and statistical models using R. Sincere thanks.... And