similar to: Error message while trying to update packages: Error in gzfile(file, mode) : unable to open connection

Dear R helpers: I am a newbie to R and have a question related to cleaning large data frames in R. So far, I have been using SAS for data cleaning because my data sets are relatively large (handling multiple files, each could be as large as 5-10 G). I am not a fan of SAS at all and am eager to move data cleaning tasks into R completely. Seems to me, there are 3 options. Using SQL, ff or

Dear R'ers, I have trouble installing tikzDevice in Ubuntu.  When I use install.packages("tikzDevice"), it gives error message: ERROR: dependency ‘filehash’ is not available for package ‘tikzDevice’ * removing ‘/usr/local/lib/R/site-library/tikzDevice’ Then I tried filehash installation, I get the message: "package ‘filehash’ is not available (for R version 2.13.1)"

Hi all, I am trying to use the filehash library to analyze a 5M by 20 matrix with both double and string data types. After consulting a few tutorials online, it seems as though one needs to first read the data into R; then create an R object; and then assign that object a location in my computer via filehash. It seems like the benefit of this is minimizing memory allocation when running

Hi everybody! I'm trying to install the tikzDevice package, and I keep on getting the > ERROR: dependency ‘filehash’ is not available for package ‘tikzDevice’ I tried install.packages('filehash') and I get > package ‘filehash’ is not available Does anybody have the same problem or any hint? thank youhelena [[alternative HTML version deleted]]

Hi all, several packages print messages during loading. How do I avoid to see them when the packages are in the defaultPackages? Here is an example. With this in ~/.Rprofile ,----[ ~/.Rprofile ] | old <- getOption("defaultPackages") | options(defaultPackages = c(old, "filehash")) | rm(old) `---- I get as last line when starting R: ,---- | filehash: Simple key-value

Hello. After run, "installed.packages()" the following error arose: Error in gzfile(file, mode) : cannot open the connection In addition: Warning message: In gzfile(file, mode) : cannot open compressed file

Dear R-list I'm on my way to start a new project on a rather big panel, consisting of approximately 8 million observations in 30 waves of data and about 15 variables. I have a similar data set that is approximately 7 gigabytes in size. Until now I have done my data management in SAS, and Stata, mostly identifying spells, counting events in intervals, and a like, but I would like to

Hello, I'm using filehash on the windows XP and it has been working fine with the newest R version 2.6.2. However, on the windows vista, when I ran the same code, I got the following error: > dbCreate("simdb") #create simdb database [1] TRUE > db<-dbInit("simdb") #initiate an object of database Error in sprintf(gettext(fmt, domain = domain), ...) : object

Dear List, I would like to ask about package RGtk2 with which I have a problem. I will very much appreciate if somebody could tell me what I need to do. I need to install a package scdMicro and it depends on gWidgetsRGtk2. I am working on MAC, version 10.5.8. When I try to load gWidgetsRGtk2 (or RGtk2), it asks me: "Instal GTK+?" I installed Gtk+ from CRAN, and added a path: export

Dear Experienced R Practitioners, I have 4GB .txt data called "dataset.txt" and have attempted to use *ff, bigmemory, filehash and sqldf *packages to import it, but have had no success. The readLines output of this data is: readLines("dataset.txt",n=20) [1] " "

I am doing cluster analysis on 8768 respondents on 5 lifestyle variables and am having difficulty constructing a dissimilarity matrix which I will use for PAM.  I always get an error:  “cannot allocate  vector of size 293.3 Mb” even if I have already increased my memory to its limit of 4000.  I did it on 2GB , 32-bit OS .  I tried ff and filehash and I still get the same error.  Can you please

Are the functions 'R_Unserialize' and 'R_InitFileInPStream' allowed to be used in R packages? I guess I'm just not clear on the implications of this comment in 'Rinternals.h': /* The connection interface is not yet available to packages. To allow limited use of connection pointers this defines the opaque pointer type. */ I have a function in the

Hello, I am hoping for some advice regarding how I can install the XML package which I require to run package tm. Normally I would use the install package option, however, I have to install the packages to a laptop running XP. The laptop does not have an internet connection. Firstly I tried the file - XML_1.99-0.tar.gz . Below is the error I received Error in gzfile(file, "r") :

Hi, For the first time I have a strange behaviour when checking a package before 'packaging' the code. Looks like a file cannot be read. rcmd check pgirmess * using log directory 'U:/Documents and Settings/pgiraudo/Mes documents/R/pgir_arch/pgirmess_arch/On work/pgirmess.Rcheck' * using R version 2.13.2 (2011-09-30) * using platform: i386-pc-mingw32 (32-bit) * using session

Hi all, I've had one of my most miserable R weeks in memory. I'm trying to deal with huge datasets (>1GB each) but am running up against those pesky memory limits. The libraries filehash and g.data are not very suitable for what I need. I haven't gotten into the sql thing yet. Most recently I've been trying to install the new package ff (not yet on the CRAN repository). I

Trying to install package 'filehash' I get the following error on FreeBSD 9.0-CURRENT (amd64) with R version 2.11.0 (2010-01-15 r50990): ----------------------------------- R CMD INSTALL filehash_2.0-1.tar.gz * installing to library '/usr/local/lib/R/library' * installing *source* package 'filehash' ... ** libs gcc -std=gnu99 -I/usr/local/lib/R/include

Hi there, Problem :: When one tries to change one or some of the columns of a data.frame, R makes a copy of the whole data.frame using the '*tmp*' mechanism (this does not happen for components of a list, tracemem( ) on R-2.6.2 says so). Suggested solution :: Store the columns of the data.frame as a list inside of an environment slot of an S4 class, and define the '[',

Hi (Roger), I saw the announcement of filehash v2.0 and the sentence "This development has lead to better file locking for concurrent access and faster reading and writing of data in general" caught my attention. What kind of file locking do you refer to here? I am looking for a mechanism that can be used to lock files for reading and/or writing, and I'd love to have a cross

Full_Name: Vadim Ogranovich Version: Version 1.6.0 (2002-10-01) OS: Red Hat 7.1 Submission from: (NULL) (209.99.241.1) The following sequence of commands crashes my R session. The first weirdness happens after the second command that appears not to change the "foo.gz" file, no error generated. > con <- gzfile("foo.gz", open="w"); cat("goo\n",

I don't know if this is a bug per se, but an undesired behavior in read.dcf. read.dcf takes a file argument and passes it to gzfile if it's a character: if (is.character(file)) { file <- gzfile(file) on.exit(close(file)) } This gzfile connection is passed to readLines (line #39): lines <- readLines(file) If no newline is at the end of the file, readLines