search for: critval

Hi everyone. R is new to me and I'm very impressed with its capabilities but still cannot figure out how to do some basic things. There seems to be no lack of documentation but finding what I need has proven difficult. Perhaps you can help. Here's what I'm after: 1. How do I create a new plot without erasing the prior one i.e., have a new window pop up with the new graph?

...= 2) if(is.null(psamp)) psamp <- quantile[1] ## LTS results with robust residuals NameC_lts <- lqs(gpanew~female+female:lastinit+agenew+canadian+mom_ed+yearstudy, quantile = quantile[1], psamp = psamp, nsamp = nsamp) rr <- residuals(NameC_lts)/NameC_lts$scale[2] rr_nok <- abs(rr) > critval[1] ## robust leverage via MCD (or MVE) X <- model.matrix(NameC)[,-1] cv <- cov.rob(X, method = method, quantile = quantile[2], nsamp = dist_nsamp) rd <- sqrt(mahalanobis(X, cv$center, cv$cov)) rd_nok <- rd > critval[2] ## ROBUST results nok <- rr_nok & rd_nok NameC_rob <- l...

Hello, has anybody written a function to plot density ellipses (95%, 99% or anything) in a scatterplot? I found nothing in any package, nor in the list archives. There does seem to be a contributed package "ellipse" for S-Plus (on S-Archive), but it does a lot more than what I would need. Still, if anybody ported it to R, I'd be grateful for a link. I'm a bit afraid to try the

I'm trying to compute sample size requirements for a binomial exact test. we want to show that the proportion is at least 90% assuming that it is 95%, with 80% power so any asymptotic approximations are out of the questions. I was planning on using binom.test to perform the simple test against a prespecified value, but cannot find any functions for computing sample size. do any exist?

Is there any way to find-out the peak number of calls that an asterisk system has had? Not the total number of calls, but the maximum number of simultaneous calls. I know I can porobably go through the CDR logs and look for calls which have overlapped in time, but I'm wondering if there's some counter somewhere I could access... (I'm looking for evidence for an ISDN client who