similar to: Slow 'read.table' in R 1.4.0 (PR#1232)

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 all, I discovered that read.table (RW1.8.0) leaves out data when reading multiple-line records. Replication code at the end Best regards Jens Oehlschlägel > filename <- "c:/tmp/c2.csv" > > data <- data.frame(a=c("c", "e\nnewline"), b=c("d", '"quoted simpleline"')) > > #look at the data >

Full_Name: Juho Vuori Version: 2.7.0 (2008-04-22) OS: Linux poseidon.fimr.fi 2.6.23.17-88.fc7PAE #1 SMP Thu May 15 00:22:53 EDT 2008 i686 i686 i386 GNU/Linux Submission from: (NULL) (193.166.188.194) Calling read.table() twice the following way causes a segmentation fault in R. Run R and type the following commands: > read.table(stdin()) 0: 1 2 3 1: 3 2: Error in scan(file, what, nmax, sep,

Hi All, I am trying to install R1.3.1 on solaris 2.6 using the gcc/g77 compiler. The configure step succeeded, but make failed. The compiler versions I used are: gcc version 2.95.2 19991024 (release) g77 version 2.95.2 19991024 (release) CC workshop Compilers 5.0 98/12/15 C++ 5.0 I can't use the c++ compiler(v2.95.2), since it failed the configure step. I can't use f77 either,

Full_Name: Dr. Alex Sheppard Version: 2.7.1 OS: Linux Debian Lenny Submission from: (NULL) (79.73.224.62) After scanning from an open (text) connection, then seeking, then scanning again, the second scan returns incorrect result. It looks like the first byte scanned was from the pre-seek file position, then it continues to read from the post-seek file position. To reproduce: #Put 3x3 matrix

Full_Name: Jan T. Kim Version: 2.0.1, devel-2005-02-24 OS: Linux 2.6.x Submission from: (NULL) (139.222.3.229) Run read.table(stdin()) and type in the broken table 1 2 1 terminating the input by pressing Ctrl-D at the 3rd line of input. An error message by scan, complaining that "line 2 did not have 2 elements" appears, as expected. However: After this, there are three empty lines

I was trying to read in a file and delete lines that did not have the correct number of fields on them. I was reading the file as one character vector per line using 'scan' with sep='\n'. I was then using 'count.fields' with 'textConnection' to the object I just read in. I thought at first the system was locked up, but further testing showed that the

Hi, R-1.4.0 on ES40 under OSF 5.1. I use gcc version 3.0.3 During gnu make I have the message : dumping R code in package `methods' Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library"/usr/local/R1.4.0/library/methods/libs/methods.so": dlopen: /usr/local/R-1.4.0/library/ctest/libs/ctest.so: symbol "dansari" unresolved Execution

Hi, I have a problem with the memory size within R. I would like to know if there is any may for getting back free memory during a R session. I've tried with rm and gc but it still craches. I am working on windows R1.3.1. I know I have big datasets, but during my study, some results are temporary, and I would like to get back the memory allocated to this temporary object as soon as I remove

The control flow was: if (!y) { ppix = ... } if (y) { ... } else if (x) { use ppix for something } else { use ppix for something } Merge the if(!y) block with the two else branches. This avoids a false-positive in the clang static analyzer, it can't know that !y and x are mutually exclusive. The result looks something like this: if (y) { ... } else { ppix = ... if (x) {

I'm currently using the below function from some library (MASS?) for writing my data out to file. I'm using it instead of plain old "write" because it does buffering. The problem that I'm having is that the numbers are space padded, but I need true tab-delineated files. It looks like the spaces are coming from 'format', but I don't see an option for format to

Full_Name: Kamil Barto? Version: 2.8.0 OS: windows xp Submission from: (NULL) (212.33.92.187) According to the "deparse" function documentation "nlines" is the *maximum* number of lines to produce. But, when "nlines" argument is supplied, it produces exactly nlines of result, and the result contains empty elements at the end. Example: >

I need to read two different random lines at a time from a large ASCII file (120 x 296976) containing space delimited 0-1 entries. The following code does the job and it's reasonable fast for my needs: lineNumber = sample(120, 2) line1 = scan(filename, what = "integer", skip=lineNumber[1]-1, nlines=1) line2 = scan(filename, what = "integer",

On Sep 11, 2009, at 7:17 PM, Nick Lewycky wrote: > Dan Gohman wrote: >> On Sep 11, 2009, at 9:57 AM, Chris Lattner wrote: >>> Devang's work on debug info prompted this, thoughts welcome: >>> http://nondot.org/sabre/LLVMNotes/ExtensibleMetadata.txt >> The document mentions "instructions" a lot. We'll want to be able to >> apply metadata to

Chris Lattner wrote: > > On Sep 11, 2009, at 7:17 PM, Nick Lewycky wrote: > >> Dan Gohman wrote: >>> On Sep 11, 2009, at 9:57 AM, Chris Lattner wrote: >>>> Devang's work on debug info prompted this, thoughts welcome: >>>> http://nondot.org/sabre/LLVMNotes/ExtensibleMetadata.txt >>> The document mentions "instructions" a lot.

Hello, Are there any chances of next stable release appearing soonish? I'm getting pushback from Homebrew maintainers about the massive amount of patching required to build the current stable on Mac, since all the patches have been merged in after last stable. (I'm also getting pushback about the 4GB download of virtual appliance, but as I understand that one is non-optional. Don't

I received several answer to my querry re reading zipped files, R.Gentleman, Liaw Andy, BD Ripley,J Holtman, A.Matt, and others, sorry if I missed your names. a- use pipe to run external unzip to a file and read from there b- use gzfile() to open directly a gzipped file c- use zip.file.extract() solution b works like a charm, unfortunately it open gzipped files and not zipped files, would it be

Hola! I have data in the form of a symmetric distance matrix, in the file I have recorded only the upper triangular part, with diagonal. The matrix is 21x21, and the file have row and col names, and some other information. I am trying to read with the following code (I tried many variations on it, but all give the same error). The items in the data file is delimited by white space. (Part

Dear R People: Here is a very simple question, please: I have a data frame with the state name, state division, and population. Note: state division is something like Atlantic, Mountain, etc. I want to produce a table with the state division and the total of the populations for the states within that division. I've been messing with "table" but so far, no luck. This is R1.3.1,

I get unexpected behavior from "readLines()" and "scan()" depending on how the file is opened with "gzfile" or "unz". More specifically: > file <- gzfile("file.gz") > readLines(file,1) [1] "a\tb\tc" > readLines(file,1) [1] "a\tb\tc" > close(file) It seems that the stream is rewound between calls to readLines.