similar to: multiplying multidimensional arrays (was: Re: [R] Manipulation involving arrays)

Hi, I have the following piece of code that is part of a larger function. This piece is the most time consuming part of the function, and I would like to make this a bit more efficient. Could anyone suggest a way to do this faster? In particular, I would like to replace the nested "for" loop with a faster construct. I tried things like "kronecker" and "outer"

Dear r-helpers, I can run the examples on the mcsamp help page. For example: **************************************** > M1 <- lmer (y1 ~ x + (1|group)) > (M1.sim <- mcsamp (M1)) fit using lmer, 3 chains, each with 1000 iterations (first 500 discarded) n.sims = 1500 iterations saved mean sd 2.5% 25% 50% 75% 97.5% Rhat n.eff beta.(Intercept)

Dear ALL I have this function in R: func_LN <- function(data){ med_ge <- matrix(c(rep(NA,nrow(data)*ncol(data))), nrow = nrow(data), ncol=ncol(data), byrow=TRUE) T <- matrix(c(rep(NA,length(n)*ncol(data))), nrow = length(n), ncol=ncol(data), byrow=TRUE) Tdiff<- matrix(c(rep(NA,length(n)*ncol(data))), nrow = length(n), ncol=ncol(data), byrow=TRUE) T1<- c(rep(NA,ncol(data)))

I have written a function called mcsamp() that is a wrapper that runs mcmcsamp() and automatically monitors convergence and structures the inferences into vectors and arrays as appropriate. But I have run into a very little problem, which is that mcmcsamp() shortens the variable names. For example: > set.seed (1) > group <- rep (1:5,10) > a <- rnorm (5,-3,3) > y <-

Hi All, Need some information on getting the right storage array to buy for my cluster configuration can anyone help me with this my Setup so far 2 Athlon 2800 Sempron System 1 Wti Network power switch 1 24 Port 10/100 Cat5 switch 2 Adaptec 39160 scsi host adapter pci cards installed in the systems. I need to know what is the best storage solution with this configuration Thanks

We have recently been asked to evaluate some computing machinery for a new project. This particular end user has very limited experience with the stated security requirements in a lights-out environment. Their primary work (as well as mine) in the past has been with very small, simple networks of desktop machines and a few servers with extremely limited access.? For the most part, their admins

On Thu, 2 Jul 2015, Chris Olson wrote: > We have recently been asked to evaluate some computing machinery for > a new project. This particular end user has very limited experience > with the stated security requirements in a lights-out environment. > Their primary work (as well as mine) in the past has been with very > small, simple networks of desktop machines and a few

On Thu, Jul 02, 2015 at 12:30:47PM -0400, Paul Heinlein wrote: > If your admins are comfortable with serial consoles, a concentrator > like those available from Digi or WTI can offer fairly robust access > controls; they can also be set to honor SSH keys rather than > passwords, which may help increase security. I've used those for devices that were fairly dumb, but for servers

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