search for: w_k

Dear R developers, I am a little disappointed that my bug report only made it to the wishlist, with the argument: Well, it does not say it has. Only relevant to prediction intervals. predict.lm does calculate prediction intervals for linear models from weighted regression, so they should be correct, right? As far as I can see they are bound to be wrong in almost all cases, if no weights

...oblem: x* = arg_x min (a|x| + sum_{k=1}^n |x - b_k|) where a : is a *positive* real scalar x : is a real scalar n : is an integer b_k: are negative and positive scalars which is a "median with a shift towards zero". This can be rewritten as x* = arg_x min (sum_{k=0}^n w_k|x - b_k|) where w = (a, 1, 1, ..., 1) and b_0 = 0, which is a problem that could be solved by a weighted median function. If someone has a better solution (note that 'a' does *not* have to be an integer) to this specific optimization problem I would be very happy to hear about it. Thanks...

Hello all, I've got a weird problem with a fresh install of Samba from the FreeBSD ports collection (btw. the BSD-box is also a fresh 4.7 Stable install). Configured Samba 2.2.7a - without cups - with winbind - with winbind-auth - with audit so far, the installation seemed to work fine... Then I copied the libnss_winbind.so to /usr/lib and softlinked it to /usr/local/lib as well as to the

Hi, According to daisy function from cluster documentation, it can compute dissimilarity when NA (missing) value(s) is present. http://stat.ethz.ch/R-manual/R-devel/library/cluster/html/daisy.html But why when I tried this code library(cluster) x <- c(1.115,NA,NA,0.971,NA) y <- c(NA,1.006,NA,NA,0.645) df <- as.data.frame(rbind(x,y)) daisy(df,metric="gower") It gave this

Hello list. I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without modifications. How did I try it? Created a (non-root) build environment (not a mock ) Installed the kernel.scr.rpm and did a rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee prep-out.log The build failed at the end: Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL Checking