similar to: Fast way to load multiple files

I got the following after running succesfully through this loop 28 million times... the loop opens text files in a directory and inserts line by line into a database... *** caught segfault *** address 0xc0000010, cause 'memory not mapped' Traceback: 1: .getGeneric(f, where, package) 2: getGeneric("coerce", where = where) 3: as(obj, "integer") 4:

Hi Guys, I''m having serious troubles resizing a dialog with a ListCtrl. The ctrl will not resize horizontally no matter what I''m doing. I''ve attached a sample code below. Any help will be greatly appreciated, as I really like wxRuby :) I''ve also tried to copy from the example from listtest.rbw, but that also doesn''t seem to work. Another thing

Dear all, I have many csv files whose contents I want to change a bit en masse. So far, I've written code that can change them in a for loop, like so: # Subset of files in the folder I want to change subset = "somestring" # Retrieve list of files to change filelist=list.files() filelist = filelist[grep(subset, filelist)] for(i in 1:length(filelist)){ setwd(readdir)

Hi, I'm using read.table in a loop, to read in multiple files. The problem is that when a file is missing there is an error message and the loop is broken; what I'd like to do is to test for the error and simply do "next" instead of breaking the loop. Anybody knows how to do that? Example: filelist <- c("file1.txt", "file2.txt",

In <R 1.8.1 the following fragment worked properly, now (1.8.1) it creates the following warning/error: Any advice appreciated. stt <- data.frame() # load all datasets into a dataframe for (ds in 1:n) { stt[ds] <- as.matrix(read.table(fileList[ds])) } -- > stt <- data.frame() > # load all datasets into a dataframe > for (ds in 1:n) { + stt[ds] <-

Hi, I've noticed every time someone does an rsync-request on my ftp-site (which also provides rsync as mirror method), rsyncd creates a filelist. This is a quite IO and CPU intensive procedure, especially for things mirrors like FreeBSD with lots of little files. I was wondering... is there a way to cache that filelist? Our mirrors are updated once, or twice a day, it could speed up

Dear All, To load a previously saved workspace, one can do the following: load("/path/to/the/saved/workspace/file") However, if the path to the saved workspace file is a web address, one gets the following error: ?Error in readChar(con, 5L, useBytes = TRUE) : cannot open the connection In addition: Warning message: In readChar(con, 5L, useBytes = TRUE) : cannot open compressed file

Hi All, I have a slight issue getting R to plot a series of tables automatically. Essentially I have a series of tables that I wish to plot. They are named on_2, on_3 etc. based on the file name when they were read in. I have filelist <- list.files() to give me list of the table names. I wish to plot each table, so I was thinking along some kind of for loop as below: for (i in 1:Number_Files)

Dear all, I am trying to read in and assign data from 50 tables in an automated fashion. I have the following code, which I created with the help of textbooks and the internet, but it only seems to read in the final data file over and over again. For example, when I type:> table_1951 I get the same values in the table as when I type> table_2000 despite the values in the source tables

Dear all, I think I'm nearly there in writing R code which will read in files with two variable parts to the file name and then assigning these file names to objects, which also have two variable parts. I have got the code running without encountering errors, however, I receive 50+ of the same warnings: 1: In assign(paste("Fekete_", index$year, index$month, sep = ""),

"It seems therefore that there is no other way than read in individually > 100 weather tables using read.tables., right? Using file.choose() doesn't change the work." Yes. With that many files, file.choose() does not make sense. However, I still do not understand what is the problem with using lapply() on the character vector of file names with read.table() as you did in your

After more than one hour of countless tries, I ask myself a simple question : On what items are plugins supposed to execute ? I''ve tried to create a filelist plugin which, for a page, displays all file in the same directory (a rather old school view of website, where each directory contains an entry point). But, whatever I try, my plugin code is never invoked, and my page content is never

I''m still trying to work into Ruby 1.9.2 and am now experiencing something that makes no sense to me. Using rspec 1.3.2 and rspec-rails 1.3.4 with rails 2.3.11 on ruby 1.9.2-p180, when I $ rake spec:models they all pass. When I $ rake spec:controllers they all pass. When I $ rake spec:views they all pass. But when I $ rake spec I get <path to

Hi, I have 2 questions: Question 1: I define 2 variables: "a", "b": > a<-rbinom(4,10,0.8) output: [1] 9 7 8 8 > b<-rbinom(2,6,0.7) output: [1] 4 5 if I write: > write.table(a, file = "filename", etc. etc. .... ) it save only the values of variable "a". There is a way to save in a .txt file the values "a" and "b" as

I have the following code fileList <-list.files(path = ".", pattern = "[^a-z].txt$", all.files = FALSE, full.names = FALSE, recursive = FALSE, ignore.case = FALSE) for (x in 1:length(fileList)){ fileLines <- data.frame(read.table(fileList[x])) print(string) } the lines of the file all have the following format... AB,20091224,156,156,154,154,55,1198 Can I access

Hi, As a gentoo-user i frequently run the emerge sync command, which in turn does a rsync with the mainserver. The 'problem' is that the portage directory tree contains about 19.000 directories and 96.000 files. So building the filelist takes a pretty long time, because of the many disk accesses that are neccesary. On the server side the disk-io problem is probably less worse since

Hello, I am currently taking a statistics course and we are to do a project producing a graph using multiple input files. In R, I'm trying to build a filelist based on a pattern. For some reason, if I do the command interactively and not assign it to an array variable I get what I thought I should, but if I do this inside my R program it chops off some file names and thinks there are two.

I've done this before, but when I tried the same thing this time, it didn't work. I'm using R 2.4.1 on windows. I have 6 data frames that I want to include in a package I am building. Instead of making users issue six different "data(...)" commands, I want to wrap them all up in one file so that users issue one "data(...)" command and have access to all six data

Hi, On Wed, Dec 20, 2023 at 11:03?AM Kevin Korb via rsync <rsync at lists.samba.org> wrote: > What is the error? I assume you know that with that syntax the > filelist.txt is local rather than remote. > Yes, I do know it refers to the list of local files. There is no error - it just hangs indefinitely until some timeout period. This is what it looks like on the remote side: $

Dear community To import multiple .dat weather files I am using list.files(). I intend to use the R package ?ClimInd? to calculate different agroclimatic indicators. Question: Is there another solution to import multiple .dat files so that I can select elements from the list, e.g. one specific weather file (example AAR_DailyWeather)? # Import multiple .dat files weather data filelist <-