similar to: Infinite recursion error that I don't understand

Full_Name: Spinu Vitalie Version: 2.9.0 OS: Windows Submission from: (NULL) (130.115.113.15) In assignment of "zero length" names to data.frame: > tdf <- data.frame(rbind(c(1, 2), c(1, 2))) > names(tdf) <- c("", "") > tdf structure(c("1", "1"), class = "AsIs") structure(c("2", "2"), class =

Hello, > X <- data.frame(letters=letters[1:3], flag=c(TRUE, FALSE, TRUE)) > X letters flag 1 a TRUE 2 b FALSE 3 c TRUE > apply(X, 1, as.list) [[1]] [[1]]$letters [1] "a" [[1]]$flag [1] " TRUE" [[2]] [[2]]$letters [1] "b" [[2]]$flag [1] "FALSE" [[3]] [[3]]$letters [1] "c" [[3]]$flag [1] " TRUE"

Dear R-help, There seems to be a web page I am unable to download using RCurl. I don't understand why it won't download: > library(RCurl) > my.url <- "http://www.nytimes.com/2009/01/07/technology/business-computing/07program.html?_r=2" > getURL(my.url) [1] "" Other web pages are ok to download but this is the first time I have been unable to download a

Dear R-help, I want to download the text from a web page, however what i end up with is the html code. Is there some option that i am missing in the RCurl package? Or is there another way to achieve this? This is the code i am using: > library(RCurl) > my.url <- 'https://stat.ethz.ch/mailman/listinfo/r-help' > html.file <- getURI(my.url, ssl.verifyhost = FALSE,

Hello, I am having a problem with write.fwf in Windows. I wrote a code to ingest a number of text files with weather data in them, process them, and then output a text file with two parts: 1) a set of column names, 2) the processed data table. I wrote and tested the program on my Mac, and it worked fine. However, on the windows machine, where I intend the work to be done, when I run the

Dear all, Objective: I am trying to learn about neural networks. I want to see if i can train an artificial neural network model to discriminate between spam and nonspam emails. Problem: I created my own model (example 1 below) and got an error of about 7.7%. I created the same model using the Rattle package (example 2 below, based on rattles log script) and got a much better error of about

Hello, I encountered this: > png(file=tempfile(), width=1165, height=12983) Error in png(file = tempfile(), width = 1165, height = 12983) : unable to start png() device In addition: Warning messages: 1: In png(file = tempfile(), width = 1165, height = 12983) : Unable to allocate bitmap 2: In png(file = tempfile(), width = 1165, height = 12983) : opening device failed > On the

I have just installed R version 2.14.0 and tried to re-build and re-check some of the packages that I maintain. I'm getting a warning (in the process of running R CMD check on my "deldir" package): > * checking PDF version of manual ... WARNING > LaTeX errors when creating PDF version. > This typically indicates Rd problems. > LaTeX errors found: > ! Font

Dear helpers, I'm trying out the embedFonts() to embed fonts into my pdf files. However, when I inspect the new pdf with a program designed to look for embedded fonts, I see that the fonts have in fact not been embedded. Below are my calls. R version 2.13.1 (2011-07-08) Copyright (C) 2011 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: i386-pc-mingw32/i386 (32-bit)

Hello: rJava works for me under 32-bit but under not 64-bit R; see below. Suggestions? Thanks, Spencer > library(rJava) Error : .onLoad failed in loadNamespace() for 'rJava', details: call: stop("No CurrentVersion entry in '", key, "'! Try re-installing Java and make sure R and Java have matching architectures.")

Dear RUsers, I just upgraded from 2.6.0 to 2.6.2 and tried to reinstall the RWinEdt patch to work with WinEdt so that I can continue function as I always have but I have run into problems that I don't understand how to fix. Any help would be great. Essentially, I downloaded the latest RWinEdt zip folder from the CRAN website and tried calling the library. I tried re-installing it a bunch of

I've noticed the following oddity where capture.output() prevents eval() from evaluating an expression in the specified environment. I'm not sure if it is an undocumented feature or a bug. It caused me many hours of troubleshooting. By posting it here, it might save someone else from doing the same exercise. Start by defining foo() which evaluates an expression locally in a given

Related to the following question on Stackoverflow: https://stackoverflow.com/questions/44723690/unexpected-behavior-of-sys-setlocale#44723690 It appears as if Sys.setlocale() does not update LC_TIME correctly for use in date formatting. Although R reports that LC_TIME is changed to the new setting after use of Sys.setlocale(), as.Date() still uses the old settings. The only way to update this is

Arrrrr, I think I've found a bug in the behavior of the stats::cor function when NAs are present, but in case I'm missing something, could you look over this example and let me know what you think: > a = c(1,3,NA,1,2) > b = c(1,2,1,1,4) > cor(a,b,method="spearman", use="complete.obs") [1] 0.8164966 > cor(a,b,method="spearman",

\b is word boundary. But, unexpectedly, strsplit("dia ma", "\\b") splits character by character. > strsplit("dia ma", "\\b") [[1]] [1] "d" "i" "a" " " "m" "a" > strsplit("dia ma", "\\b", perl=TRUE) [[1]] [1] "d" "i" "a" " "

Hi, I've been using R for many years and have always tried to keep my R version up to date, and when I switched from 2.7.1 to 2.7.2 I'm suddenly having trouble printing from the graphics device. I have Windows XP, and installed both versions of R from the binaries. If I start 2.7.2 and simply do: > plot(1:10) the default R Graphics Device window opens as usual. However, when I

Consider the following: plot(0, 0, xlim=c(-10, 10), ylim=c(-50, 50)) lines(c(0,0), (2*c(-pi, pi))^2) I see no line in this plot. R version 2.4.1 (2006-12-18) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1]

Hi, All: Is there a way to identify whether any users are using a particular package in a shared network R installation? I ask, because we have such a multiple-user installation and when I tried to install a package using Rgui that was in use by Rterm on a single-user installation, 'install.packages' deleted the existing package but failed to install the new version;

(I am reposting this question after a few months without a solution...) Hi all, I am trying to read a .txt file, with Hebrew column names, but without success. I uploaded an example file to: http://www.talgalili.com/files/aa.txt And tried the command: read.table("http://www.talgalili.com/files/aa.txt", header = T, sep = "\t") This returns me with: X.....ª X...ª......

R-devel, When I run the following code on the attached file, tmp <- scan("C:/temp.csv", what=list("character","numeric"), sep=",") Then tmp[[2]] is a character vector. My impression from the help file is that it should be a numeric as specified by 'what' > sessionInfo() R version 2.5.0 (2007-04-23) i386-pc-mingw32