search for: dimenional

(See DAAG book, p. 173, ex. 3) I'm a new user of R, and I'm following the DAAG text. I want to create a subset of the races2000 data frame, but get errors because of a mismatch of values in some columns: > library(DAAG) > attach(races2000) > hills2000 <- races2000[races2000$type == 'hill'] Error in as.matrix.data.frame(x) : dim<- : dims [product 770] do not

Hello All, I'm trying to run a one-dimenional irt model using the packages MCMC and coda on a rather large set of roll-call voting data with many missing observations. Here's a sample of the code: Post10<- MCMCirt1d (Italy10, burnin = 1000, mcmc=50000, thin=100, verbose=TRUE, theta.constraints = list(V549=1, V443=-1)) The MCMCirt1d co...

...e R package. My sample XML document is located at " http://www.sec.gov/Archives/edgar/data/743988/000124636013000561/form.xml" I have successfully import the XML document and then converted the XML document to a list. I am "stuck" trying to convert the document into a "2-dimenional" table or dataframe. What is a "good" way to convert the XML document to a 2-dimensional table or data.frame? Ideally, I'd like a table with 1 row for each XML document, and unique fieldnames. If fieldnames repeat, I'd like the names to be numbered sequentially e.g. $nonD...

I don't find rbind, cbind or other bind that bind in other dimesions for multidimension array while keeping the result of the same dimension. For example, say, dim(x)=c(2,3,4), dim(y)=c(3,3,4). I want to have the result z, where dim(z)=c(2+3,3,4), when I bind x and y in the first dimenion. The bind can also be in the 2nd and 3rd dimesion. Could somebody let me know if this family of

You've omitted a comma. races2000 is a data frame, which for purposes of extracting rows behaves like a 2-dimenional object. The following works fine: hills2000 <- races2000[races2000$type == 'hill', ] Additionally, you might like to ponder > type <- races2000[names(races2000)=="type"] > type[1:4] Error in "[.data.frame"(type, 1:4) : undefined columns selecte...

...17" monitor, 800x600, if this matters): [1] "A character vector with a single component consisting of a long string gets truncated with $ The point of truncation changes when the window is resized with the mouse. options(width=[value]) seems to work for other objects (e.g., one and two dimenional arrays). I'm using R (Rgui.exe) 0.90.1 on Windows 95 original relase (4.00.950). I've been through the documentation, can't find anything on this. It is a nuisance because I often can't read R error messages. Is there a setting I need to change, aside from options(width=...)? Thank...

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