similar to: textConnection appears to be slow

I was using 'textConnection' to read in a file with about 11,000 lines so I could detect lines with incomplete data and delete them and then read them in with 'scan'. I am using 1.7.0 on Windows. Here is the output from the script and it was using 51 seconds just to do the textConnection. Is there a limit on how large a text object can be to be used with

> I need a simple blog with categories and comments and an archive. I want a > nice posting system, but don''t want it in HTML. Is there something I can add > or make, kind of like BBCODE? http://whytheluckystiff.net/ruby/redcloth/ http://wiki.rubyonrails.org/rails/pages/RedCloth > I pretty much know what else I have to do, but there is one more thing. A > client section.

I''m working on my personal site. The design is complete and I want to integrate some rails into it. I''ve done a few small things before, but compared to them this is big. I need a simple blog with categories and comments and an archive. I want a nice posting system, but don''t want it in HTML. Is there something I can add or make, kind of like BBCODE? I pretty much know

Hi, I need to generate complex graphics which have to be shown in the plot window but also in pdf file, and they must have A4 size. This is the reason why I use width=8.27 and heigth=11.69. The problem is that I don't make it runs when I put something (text, lines, and so on) outside the plot region. I mean if I run the following code, it works perfectly, because the text "My

I need read a table in a string with special format. I used read.csv and textConnection function. But i am confuse about textConnection by follow code. case A: It is OK£¡ str0 <- '{"abc",{"def","X,1&Y,2&Z,3"}}' str1 <- strsplit(str0,'"')[[1]][6] str2 <- gsub("&","\n", str1) con <-

Hello; This is bit long email but hope someone can guide me. I have questions regarding socket, readLines and textConnection. I am not sure if my code is efficient (due to textConnection) and how to handle client disconnect and restart of the socket server in R. I have a huge(3.5+G) text file on machine 'A', which I want to process on machine 'B' using read.table (one line or a

hello, I don't understand what's happen just before the textConnection function runs good but now it doesn't run > Line[1] [1] "if C325=. then C743=(C152/C103)*100| else C743=(C152/C325)*100" > textConnection(Line[1]) Erreur dans textConnection(Line[1]) : toutes les connexions sont utilisées why R display that?

Hello. I don't uderstant when to use textConnection and when not. Some examples do it, some not. I've even seen something like con <- textConnection(rev(rev(ReadLines('data.txt'))[-(1:2])) data <- read.table(con) close(con) -- View this message in context: http://r.789695.n4.nabble.com/when-to-use-textConnection-tp2327132p2327132.html Sent from the R help mailing list

Dear list, In my experiments in reading in text data, I have?obtained some peculiar results.?I would appreciate any help in understanding these results. Consider the following code : ## Reading in text data from a text file ### the first line of file f1.txt contains the text :??? c:\Rtools\bin;c:\Rtools\perl\bin;c:\Rtools\MinGW\bin; f1<-file("C:\\Ex\\f1.txt") c1<-readLines(f1,1)

I've noticed that the processing time for the default capture.output() grows exponentially in the number of characters outputted/captured. The default settings sinks to a temporary textConnection(). When instead sinking to a rawConnection(), the processing time becomes linear. See below example and attached PNG figure [also at

(Sorry for not linking to your message; I accidentally deleted the original copy of your message.) Your code > zz = textConnection('tempConnection', 'wb') > saveRDS(c("a", "b", "c"), zz, ascii = TRUE) > serialized_obj = paste(textConnectionValue(zz), collapse='\n') > readRDS(textConnection(serialized_obj)) Error in

dear ALL-R-helper: I modify my question in "textconnection output": I wrote one function in Rgui: output <- function(y){ x <- textConnection("foo","w") sink(x) a <-5 b <-6 z <-a*b z e <-"spss" h <-c(1,2,3) ls() r<-c("s","p","s","s") p<-list(1:10) p y <- foo sink()

Hi All, I had working code under R v3.2 that serialized an object, stored the serialized object in a database, and then successfully retrieved and hydrated that object. I recently updated to R v3.4.1 and the same code now fails. Here is the code in question (simplified), and the resulting error: > zz = textConnection('tempConnection', 'wb') > saveRDS(c("a",

List Members, I am using R 1.3.1 for windows and trying to capture the output of some summaries using textConnection. I then want to incorporate the text with summary graphics output. The code below works (captures the output) when it is not used in a loop or function. When placed in a loop or function, the cat outputs are captured to 'foo' but the summary outputs are not. The

Colleagues, Using R2.7.0 in OS X, I am having trouble understanding the command textConnection. My situation is as follows: 1. I am trying to read a lengthy file (45000 lines) that has headers ~ every 1000 lines. read.table (or its variants) fail because of the recurrent headers. 2. My present approach is the following: a. use readLines to read the file, save as an array b. use grep

Is this warning given on purpose? > myconn<-textConnection("print(11*11)") > source(myconn) [1] 121 Warning message: In source(myconn) : argument 'encoding = "native.enc"' will be ignored Could it be omitted, since the docs state that encoding is only use if the corresponding argument is a file name or url? -- Erich Neuwirth, University of Vienna

Dear list I'm trying to solve the following problem since 2 days with no success. Could someone help a newbie, please ? I have a dependant variable which is diameter of shell, and two factors which are level on the beach (3 levels 'B', 'E' and 'H') and a hydrodynamics indice (3 levels 1, 2 and 3) To study diameter variations according to these factors, I may use

Dear all, It seems that textConnection() can trigger a segmentation fault. The following script (using two large loops) makes this bug reproducible: for (i in 1:10000) { z=textConnection(NULL,open='w') for (j in 1:100) { write(runif(1)*1e6,file=z) write('\n',file=z) } close(z) } The bug could be reproduced on R-2.6.1, R-2.7.0 and on the latest R-devel

Dear all, I am trying to plot some data with differing range in y-values with type="b", adding error bars and break the y-axis into two parts, one lower part from 12 to 20, and one upper part from 34 to 40. I have tried to follow the basic ideas from the script provided here by Jim Lemon: http://finzi.psych.upenn.edu/R/Rhelp02a/archive/56487.html My attempt looks like this:

Sometimes when I save a file to a samba-shared drive the application is unable to save there and asks if the file is write protected or if the disk is full. If I then save it to a local drive and copy it there using Windows Explorer, it can overwrite the file fine. Do I need to make that myriad of changes to my XP Pro registry? Most of the time it works fine, just from time to time it will give