similar to: socket bug ??? (PR#2056)

Dear everybody, I'm a new user of R 2.4.1 and I'm searching for information on improving the output of regression tree graphs. In the terminal nodes I am up to now able to indicate the number of values (n) and the mean of all values in this terminal node by the command > text(tree, use.n=T, xpd=T) Yet I would like to indicate automatically in the output graph of the tree some

I'm doing some string manipulation on a vector of file names, and noticed something curious. When I strsplit the vector, I get a list of character vectors. The list is numbered, as lists are. When I cast that list as a data frame with 'as.data.frame()', the resulting columns have names derived from the original filenames. Example code is below. My question is, where are these names

Hi when I use con1 <- socketConnection(...) in R and want to send text from another application written in Delphi to R, do I just have to send the text or do I have to implement more control characters and so on? Is con1 <- socketConnection(port=6011, server=TRUE) writeLines("plot(rnorm(100))", con1) just sending the text in "plot(rnorm(100))" to the socket or is

Greetings, I have a nagging problem with contrasts and I can't seem to resolve it. A factor exists with four levels (lib1, lib2, con1, con2) and when I check the contrasts or set the contrasts to any of the prespecified ones, I do not get the exact contrasts necessary to test the theoretically relevant ones. I need orthogonal contrasts that look just like this matrix: con1 con2

Using the package /RMySQL/ I have established a connection ('con1') to a MySQL-Database called 'mc'. This database contains a table called 'mc_2000' which has 200000 observations on several variables. One of these variables is called 'B5' (type 'double'). When I generate a numeric vector in R called 'B6' that has the same length as 'B5': How

I have an application called dynaterm which I can run successfully under wine but to achieve 110% success I need to pass this application a parameter which must contain double quotes E.G. C:/Program Files/dynaterm8/dynaterm.exe -connect:"con1" So I've tried escaping the quotes and setting the launcher command to wine "C:/Program Files/dynaterm8/dynaterm.exe

Dear All, I am using this query it returns id : id <- dbGetQuery(con1,"SELECT id FROM tenants WHERE name LIKE '%consim%'") But In my case the string "consim" is there in another variable(it is coming from configuration file); > str <- "consim" I am trying to replace the string some this like, but it not working: > id <-

Dear r helpers I run the following code for nested logit and got a message that Error in optim(c(0, 0, 0, 0, 0.1, -2, -0.2), fr, hessian = TRUE, method = "BFGS") : initial value in 'vmmin' is not finite What does this mean? and how can I correct it? Thank you June > yogurt = read.table("yogurtnp.csv", header=F,sep=",")> attach(yogurt)>

Dear Rhelpers I have the problem with initial values, could you please tell me how to solve it? Thank you June > p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2))) Error in maxRoutine(fn = logLik, grad = grad, hess = hess, start = start, : NA in the initial gradient > p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2),method="BFGS")) Error in optim(start, func, gr =

My decision tree grows only with one split and based on what I see in E-Miner it should split on more variables. How can I adjust splitting criteria in R? Also is there way to indicate that some variables are binary, like variable Info_G is binary so in the results would be nice to see "2) Info_G=0" instead of "2) Info_G<0.5". Thank you in advance! And thanks for Eric who

Many thanks to the R core team for their work on R connections. I was delighted to discover that it is now possible to remote-control R-1.3.0 via a socket connection - something which Brian Ripley noted was not yet possible with R-1.2.0 back in January 2001 in the first R News newsletter. How? Just substitute source() for readLines() in last few lines of the example for a socket connection given

The `gzcon` function both modifies and copies a connection object: # compressed text con1 <- url("http://www.stats.ox.ac.uk/pub/datasets/csb/ch12.dat.gz") con2 <- gzcon(con1) # almost indistinguishable con1==con2 identical(summary(con2), summary(con1)) # both support gzip readLines(con1, n = 3) readLines(con2, n = 3) # opening one opens both isOpen(con2)

This is what I get on R 3.3.1 on Linux: > con1 <- textConnection("foo1", open = "w") > print(con1) description class mode text "foo1" "textConnection" "w" "text" opened can read can write "opened"

Hi I cannot seem to create any files that have the name "CON" before the file extension, i.e. all of the following fail: > pdf("CON.pdf") Error in pdf("CON.pdf") : unable to start device pdf > jpeg('CON.jpeg') Error in jpeg("CON.jpeg") : unable to start device devWindows > png('CON.png') Error in png("CON.png") : unable

Hi all, I used `gzfile` and `gzcon` to read a compressed file but I found that `gzcon` gave me a different result than `gzfile`. It seems like the `gzcon` does not handle the data correctly. I have posted an example below. In the example, a portion of a compressed file is downloaded from Google Cloud as a raw vector, and the data is saved into a temp file. If I use ` gzfile` to read the file, it

Hi everybody, I've written a function to run an LME model on data derived from functional magnetic resonance images. When I run the function with contrasts included I get the following error Error in eval(expr, envir, enclos) : object 'inModelFormula' not found I think it has something do do with the way contrast evaluates arguments, but I've got no idea how to fix it. The code

-------- Original-Nachricht -------- Betreff: Re: [R] Adding and Multiplying two Unevaluated Expressions Datum: Tue, 01 Dec 2009 23:49:39 +0100 Von: Benjamin M?ller <ben_mueller.bm at web.de> An: Rolf Turner <r.turner at auckland.ac.nz> Referenzen: <20091201144125.316310 at gmx.net> <8E40E49F-E8FC-4FBD-8CC5-93789FFB0E53 at auckland.ac.nz> This works fine for your

Full_Name: Haobo Ren Version: 2.1.1 OS: Windows 2000 Submission from: (NULL) (192.11.226.116) When running constrOptim, there is error message Error: subscript out of bounds

Hi All, I've been having a little trouble with creating a loop that will run a a series of t.tests for inspection, Below is the code i've tried, and some checks i've looked at. I've used the get(paste()) idea as i was told previously that the use of the eval should try and be avoided. I've run a single syntax to check that my systax is correct and works without any problems