similar to: Iteration idioms & laziness

Hello R users I have question about the time involved in list assignment. Consider the following code snippet(see below). The first line creates a reader object, which is the interface to 1MM key-value pairs (serialized R objects) spanning 50 files (a total of 50MB). rhsqstart initiates the reading and I loop, reading each key-value pair using rhsqnextKVR. If this returns NULL, we switch to the

Hi there, If I do an lm, I get p-vlues as p-value: < 2.2e-16 Suppose am interested in exact value such as p-value = 1.6e-16 (note = and not <) How do I go about it? stephen

Charles, We run everything as "root" :) However, we are using NUT 2.6.5. Are we missing something by running 2.6.5 rather then 2.7.1? If so, I can build/install 2.7.1. Thx chris Would On 2/4/14, 9:05 PM, Charles Lepple wrote: > On Feb 4, 2014, at 9:05 AM, Chris Duffy wrote: > >> ugen1.3: <USB UPS PPC> at usbus1, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON > [...]

Hi. I just noticed the paper by Morales and Nocedal Remark on "Algorithm 778: L-BFGS-B: Fortran Subroutines for Large-Scale Bound Constrained Optimization". TOMS 2011; 38(1): 7 http://www.ece.northwestern.edu/~morales/PSfiles/acm-remark.pdf which describes a couple of improvements (speed and accuracy) to the original Netlib code which AFAICT is that still used by optim() via f2c.

On Tue, 26 Jan 2016, Peter Duffy wrote: > No one is saying that sysvinit is perfect. What I can't grasp is why > replace it with something which is no less imperfect, and is almost > certainly worse in at least some respects - and to make that replacement > unavoidable and mandatory. Distros weighed up the advantages and disadvantages, and made a decision as to what they thought

Hi all, I'm working with a bunch of large graphs, and stumbled across something useful. Probably many of you know this, but I didn't and so others might benefit. Using pch="." speeds up plotting considerably over using symbols. > x <- runif(1000000) > y <- runif(1000000) > system.time(plot(x, y, pch=".")) user system elapsed 1.042 0.030 1.077

I'm simulating a Markov process using a vector of proportions. Each value in the vector represents the proportion of the population who are in a particular state (so the vector sums to 1). I have a square matrix of transition probabilities, and for each tick of the Markov clock the vector is multiplied by the transition matrix. To illustrate the sort of thing I mean: pm <-

> Date: Mon, 20 Feb 2006 16:43:55 -0600 > From: Aldi Kraja <aldi at wustl.edu> > > Hi, > Using package gclus in R, I have created some graphs that show the > trends within subgroups of data and correlations among 9 variables (v1-v9). > Being interested for more details on these data I have produced also the > var-covar matrices. > Question: From a pair of two

And are there any other (free) DOS-based SMB clients without the huge lower (<640K) memory requirements.

Charles, the out from the command below as well as the system.log file are below your email. It does look like a permission issue but what one? Thx chris On 2/5/14, 6:43 PM, Charles Lepple wrote: > On Feb 5, 2014, at 10:12 AM, Chris Duffy wrote: > >> However, we are using NUT 2.6.5. >> >> Are we missing something by running 2.6.5 rather then >> 2.7.1? If so, I

I don't know of any R package that can match all the functionality of LEM eg fitting equality constraints to model parameters a la LISREL. WRT dumping tables, I would have thought that as.data.frame.table does pretty much what you want, [not tested] newtab <- as.data.frame(table(a,b,c)) cat("dim\n") for(i in seq(1, ncol(newtab)-1) { cat(nlevels(newtab[,1]," ") }

Thx Charles, So since this is a new type of UPSonic UPS, do you think the vendor screwed up or is it just some quirk on Freebsd? Yes, if you can look into this I would appreciate it. I do not see anyone else on the Web attempting to use this new device yet.....but....... Regards chris On 2/6/14, 8:24 AM, Charles Lepple wrote: > On Feb 6, 2014, at 8:41 AM, Chris Duffy wrote: > >>

I''m running Xen3 7775 with udev 073 (which was a PITA to get working, as the initrd I''ve been running for quite some time uses an older one -- but that''s an entirely different story). My dom0 is Gentoo-based. When I try to start a DomU, it times out waiting for hotplug-based notification, as per the following: DEBUG (DevController:69) Waiting for devices vif. DEBUG

I''m running Xen3 7775 with udev 073 (which was a PITA to get working, as the initrd I''ve been running for quite some time uses an older one -- but that''s an entirely different story). My dom0 is Gentoo-based. When I try to start a DomU, it times out waiting for hotplug-based notification, as per the following: DEBUG (DevController:69) Waiting for devices vif. DEBUG

I couldn't resist adding a more literal answer unback <- function(x) { chars <- unlist(strsplit(deparse(x),"")) chars <- chars[-c(1,length(chars))] paste(gsub("\\\\","/",chars),collapse="") } unback("\n") | David Duffy (MBBS PhD) ,-_|\ | email: davidD at qimr.edu.au ph:

I couldn't resist adding a more literal answer unback <- function(x) { chars <- unlist(strsplit(deparse(x),"")) chars <- chars[-c(1,length(chars))] paste(gsub("\\\\","/",chars),collapse="") } unback("\n") | David Duffy (MBBS PhD) ,-_|\ | email: davidD at qimr.edu.au ph:

Howdy -- I have a number of servers with host keys validated by certificates. These systems are behind a load-balanced frontend, and the certificates are signed as valid for the DNS name used by that common frontend address. This works well for the primary use case of the systems; however, when wishing to address only a single unit within the pool, the certificate cannot be used to validate that

On 2/5/14, 9:55 PM, Charles Lepple wrote: > On Feb 5, 2014, at 9:03 PM, Chris Duffy wrote: > >>> Please run this: >>> >>> /usr/local/libexec/nut/blazer_usb -a UPSonic -u root -D >>> >>> and send the output back to the list. >>> >> Output from the above command: >> >> 0.000000 debug level is '1' >>

I am using the "UseLogin yes" configuration parameter to call the /usr/bin/login program on SGI Irix, (we are using Irix version 6.5.13). I do this because the SGI login program is AFS awhere and checks out a token for you and I do not want to compile the Kerberos version of sshd, (it is to messy for me to support). Everything seems to work fine accept the wtmp(x) and utmp(x) files do

Hi. I don't know if this a bug or just annoying to me: > x <- c(1,2,3,NA) > table(x, exclude=NULL) x 1 2 3 <NA> 1 1 1 1 > table(factor(x), exclude=NULL) 1 2 3 1 1 1 I don't think many people use factor(x, exclude=NULL): it is not the default handling of character data by read.table(). Cheers, David Duffy. -- | David Duffy (MBBS PhD)