similar to: knncat broken on R 2.14?

I use knncat to make a predictive model and get misclass rate > knncat.m<-knncat(training.new,k=c(10,20),classcol=5) > knncat.m Training set misclass rate: 36.88% then I try to calculate prediction accuracy by the following: > pr.knncat.train <- predict (knncat.m,training.new,training.new,train.classcol=5,newdata.classcol=5) > tb.knncat.train <-table (pr.knncat.train,

Hi all, I am wondering if anyone has problem installing 'knncat' package. I tried to install using 'Rcmd INSTALL knncat_1.1.1.tar.gz', error message appeared. I attached the message in the end. I allso tried to install from RGui, but it was not listed. Thanks in advance. Regards, jenny ---------- Making package knncat ------------ adding build stamp to DESCRIPTION

Hello, I figure this is quite a simple problem really, but since I'm quite new to R I need to ask: If I have a data frame: str(test) : $ classcol: Factor w/ 3 levels "1","2","3" How do I convert the entries in this column to numbers. I.e., I want to be abl to do simple calculations like test[1,the_column] - test [2,the_column] without errors.

Hi there fellow R-users, Does anyone know if there is a package for k nearest neighbours prediction as opposed to classification? I have found the package knncat but can't see a way to adjust it to predict a continuous variable. Any help would be great, Regards Wayne Jones KSS Ltd Seventh Floor St James's Buildings 79 Oxford Street Manchester M1 6SS England Company

What happened to the category k-means package for performing k-means clustering on categorical variables? I expected it to become more prominent after the Netflix Challenge recommendation engine contest concluded, but instead it seems to have dropped from view. Where was it and where is it now, and why did it become less visible?

I want to speed up computations (involving matrices) by writing some C-code to be loaded. In the C-code, I need to invert matrices etc. As I've understood the "writing R extensions" doc, I can use use #include <R_ext/Linpack.h> in my .c-file and get access to linpack's facilities within my C-code. Is that correct? If so, can anyone point me to examples on how this is

On Fedora Core Linux 4, I have a cron job that causes R to update all packages and install new ones. Lately, I notice in the log that some packages fail to install. These are ones that assume X is running. For example, the pbatR install requires tcltk to be loaded, and then the install fails because in a cron job, there is no DISPLAY environment. I suppose the same happens if you try to

On Fedora Core Linux 4, I have a cron job that causes R to update all packages and install new ones. Lately, I notice in the log that some packages fail to install. These are ones that assume X is running. For example, the pbatR install requires tcltk to be loaded, and then the install fails because in a cron job, there is no DISPLAY environment. I suppose the same happens if you try to

Hi All Please see the Rprofile file which i have modified as follows and after that when I start R then I see that R says to me "TRUE" for all the packages implying that all loaded at once. But when i try to use commands as simple as help("lm"), it doesnt work nor any of the menu "Packages" is not working. Although the regression using lm ( Y ~ X ) is working