similar to: grep negation

Dear R'helpers, I guess the solution is trivial but despite some hours of testing and looking at the doc, I was unable to fix the following problem. I want to do either: for (i in 1:lat) a[i,which(a[i,]==0] <- NA or: for (i in 1:lat) a[i,which(a[i,]==-9999|a[i,]==9999|a[i,]==9998|a[i,] ==-9998)] <- NA if the word "Time" is or is not present in variable

Would anyone care to comment if this is the best solution to this problem? > trygrep <-function(x,y) + if(grep(x,y)) + print("yes") else + print("NO") > >trygrep("foo","bafoobar") [1] "yes" > > trygrep("foo","bar") Error in if (grep(x, y)) print("yes") else print("NO") : missing value

Hello, What about an `invert` argument in grep, to return elements that are *not* matching a regular expression : R> grep("pink", colors(), invert = TRUE, value = TRUE) would essentially return the same as : R> colors() [ - grep("pink", colors()) ] I'm attaching the files that I modified (against today's tarball) for that purpose. Cheers, Romain --

Dear Madams and Sirs, because the DOI foundation recommends a new, secure resolver [1], I wanted to suggest the attached patch. It a) updates a static DOI link in the docu, b) the code chunks that generate new ones, and c) a reg-ex that detects DOI links. Hopefully, my first venture into SVN & patch files was done correctly. My apologies, if there is anything amiss. In that case, I'll

Does anybody know how to negate a string in a grep command, i.e., what I need is to return only strings that do NOT contain a second string anywhere in the entire string. for txt <- c("boo","goo","doob","foo","boofoo") I need a grep command that returns strings with "oo" except when "b" is present anywhere. I know that

Hi all, I've got a matrix of fractional data that is all positive and greater than zero that I would like to "loosely" classify, for lack of a better word. It looks something like this : 1.07 1.11 1.27 1.59 0.97 0.76 2.23 0.98 0.71 0.88 1.19 1.02 What I'm looking for is a way to round these numbers to the nearest 0.25, i.e. the above matrix would be

I have a function that does some plotting. I then add lines to the plot. If executed one line at a time, there is not a problem. If I execute the function, though, I get: Error in ans[[1]] : subscript out of bounds This always occurs after the second lines command, and doesn't happen with all of my data points (some do not have errors). Any ideas? Thanks, Sean

Dear R users and Helpers I am beginner with using R and interested in carrying out certain task for my statistical research. I am reading data for a text file, which could contain data in following pattern x y 8 10 11 14 16 16 18 15 6 20 4 4 20 18 As per the example I have two columns and 7 rows of data in each. However is real life data situation I may not know how many columns are present

Hi, I recently came across the following in __floatsidf in compiler-rt: __floatsidf(int a) { ... if (a < 0) { ... a = -a; In the case where a == INT_MIN, is this negation not undefined behaviour? AIUI this function is used for software emulation on targets that have no hardware floating point support. Perhaps there is an in-built assumption

I generated a PDF output file of 10 plots. When I try to view it with Adobe reader (R4 & R5), it will lockup the reader (it is consuming 100% of the CPU) after presenting the 4th plot. I can generate the plots just fine in Windows and as a postscript file reading it with GSview. Is there anyway to tell what might be wrong with the PDF output? The file is 890KB in size if anyone would like

Anyone have luck with pxechn32 and bootmgfw.efi? I'm getting the "Unable to retrieve first package" issue as reported by others. Really, any advice for UEFI booting into a winpe environment off of pxelinux 6.03 would be beneficial. Jason Jones Sr. Associate, Network Services | End User Computing 3947 N Oak St Ext | Valdosta, GA 31605 O +15137844955 E jason.s.jones at

Thanks a lot, James!! The problem is fixed. On the version 1.4.0 Mac/darwin (the latest available version for this system) the function read.table (which is called from read.delim etc., too) has the bug you explained. Inserting the row nlines <- nlines+1 after lines <- c(lines, line) removes this bug. M. On Friday, February 22, 2002, at 02:33 PM, james.holtman at convergys.com

Dear R-Helpers, I have a matrix where the first column is known. The second column is the result of multiplying this first column with a constant "const". The third column is the result of multiplying the second column with "const"..... So far, I did it like this (as a simplified example): nr.of.columns <- 4 myconstant <- 27.5 mymatrix <- matrix(numeric(0), nrow=5,

http://bugzilla.mindrot.org/show_bug.cgi?id=1315 Summary: Match Group does not support negation Product: Portable OpenSSH Version: 4.6p1 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P2 Component: sshd AssignedTo: bitbucket at mindrot.org ReportedBy: wknox at

Hi, is there a way to reference to a data object without copying it? For example I have a huge matrix called dist and I want two objects obj1 and obj2 to have a memeber dist that points to the matrix, but I don't want, for memory reasons, to copy the matrix twice. As far as I understand the following code will generate three copies of my data: dist <- some_code_that_generates_data

hello, the following example gives a plot with a legend: plot(-10:10,-10:10,type="n") x=1:10 y=1:10 tt=c("A","B","C","D","E","F") text(x,y,tt,cex=.8) legend(-10,10,paste(tt," ",x,y),text.col=c(2:4)) # each row in different colour but how can I colour the legend text by "column" meaning tt in red, x in

Hi All, I have a function, f(x,y) I have a matrix of data, m, with the 1st column is x and the 2nd column is y What's the best way to get f(x,y) for each row of the matrix? I tried result<-f(m[,1],m[,2]) but it doesn't work. Thanks! Bing --------------------------------- 1060 Commerce Park Oak Ridge National Laboratory P.O. Box 2008, MS 6480 Oak Ridge, TN 37831-6480 Phone:

Hi, there, I am using PC window version R and dealing with big dataset usually. May anyone let me whether the maximal dataset size in R is limited by computer memory or hard drive capacity? Thanks in advance. Yiling Cheng, M.D., Ph.D. Project Manager The Cooper Institute for Aerobics Research 12330 Preston Road, Dallas, Texas 75230 phone: (972) 3413248; Fax: (972) 3413224

On 26/10/15 02:54, Joerg Sonnenberger wrote: > On Sun, Oct 25, 2015 at 06:46:48AM -0400, Steve Canon via llvm-dev wrote: >> On Oct 24, 2015, at 6:02 PM, Chris Lattner <clattner at apple.com> wrote: >>> >>> >>>> On Oct 23, 2015, at 7:43 PM, Matthew Fernandez via llvm-dev <llvm-dev at lists.llvm.org> wrote: >>>>> On 21/10/15 00:15,

I have been using SPLUS on UNIX to do performance analysis of our computers and have some matrices that are about 15M rows with 8 columns. These are 'integers' and therefore take up about 500M of memory. I run on a system with 2G of memory and will utilize over a 1G when processing this data. I am considering using R and was wondering how large addresses spaces are handled under