search for: discusss

Dear all, I am currently analyzing count data from a hierarchical design, and I?ve tried to follow the suggestions for a correct estimation of p-values as discusssed at R-Wiki (http://wiki.r-project.org/rwiki/doku.php?id=guides:lmer-tests&s=lme%20and%20aov). However, I have the problem that my model only consists of parameters with just 1 d.f. (intercepts, slopes), so that the "mcmcpvalue" function defined below obviously produces error mess...

...lm into vcov.lm, and then having summary.lm and predict.lm call vcov(). This allows a fitting function (whether lm() or another function) to produce objects that inherit usefully from lm and glm but have other standard error estimators, by supplying a new vcov method for the class. The initial discusssion was about heteroscedasticity-consistent sandwich estimators, but from my point of view autocorrelation-consistent estimators and estimators that handle sampling weights are more interesting. OOP purists might point out that the relationship involved is not, strictly speaking, inheritance....

Greetings. I'm teaching linear regression this semester and that means I write more functions for my regression support package "rockchalk". I'm at a point now were some fresh eyes would help, so if you are a student in a course on regression, please consider looking over my package overview document here: http://pj.freefaculty.org/R/rockchalk.pdf That tells how you can grab

Is there an option for running SUR and 2SLS regressions with weighting (I am analysing mortality in towns, hence want to weight by population size) Many thanks Jon Anson -- Yonathan (Jon) Anson Department of Social Work Ben Gurion University of the Negev 84105 Be'er Sheva, Israel. Tel: +972 8 647 93 14(w) +972 8 6489286 (h) 067 233279 (m) Fax: +972 8 647 29 33

Dear R-help, Has anyone tried linking R against the Intel Math Kernel Library on (obviously) Intel architecture? Since MKL claimed to provide optimized BLAS and Lapack, I thought it might be possible to compile R against it w/o too much trouble. My first naive try under Linux (Mandrake 7.1), using R-patched dated Jan. 4, 2002: ./configure --with-blas=/usr/local/intel/mkl/LIB/libmkli32_p3.a

I have a full data set like this: aa bas aas bms ams bcu acu omega y 1 ALA 0 127.71 0 69.99 0 -0.2498560 79.91470 outward 2 PRO 0 68.55 0 55.44 0 -0.0949008 76.60380 outward 3 ALA 0 52.72 0 47.82 0 -0.0396550 52.19970 outward 4 PHE 0 22.62 0 31.21 0 0.1270330 169.52500 inward 5 SER 0 71.32 0 52.84 0 -0.1312380 7.47528 outward 6

...about distinguishing the median==1st quartile case from the median==3rd quartile case is well taken. How about making medlwd=3 (or medlwd=2) the default behaviour only when the median coincides with one of the quartiles? That might satisfy everyone? I notice that there wasn't any follow up discusssion of this post of the r-devel list. Did this suggestion get any support? The boxplots have been so well accepted in their current form for many, many years, decades even, so one should be especially cautious of making changes without some sort of consensus. Best Gordon > > From: Erich...

...Several people suggested SO_KEEPALIVE, but those occur only after hours unless you change kernel parameters via procfs and/or sysctl, and when the client crashes, I need recovery right away, not hours down the road. Time here is literally worth a dollar per second, roughly. Anyway, thanks for the discusssion and helpful links. At one time I knew all this stuff, but it has been 20 years since I had to dig into the TCP protocol this deeply. -G. -- Glenn Eychaner (geychaner at lco.cl) Telescope Systems Programmer, Las Campanas Observatory

...y > Cc: 'r-help at stat.math.ethz.ch' > Subject: Re: [R] linking R against MKL > > > On Fri, 11 Jan 2002, Liaw, Andy wrote: > > Also, has anyone compared MKL with ATLAS? Maybe it's not > worth the effort > > fooling with MKL? > > There's some discusssion on the math-atlas-results list at the ATLAS > sourceforge page. It looks as though it probably isn't worth > the effort > at least for double precision reals. YMMV. > > Another thing to note is that ATLAS is reporting substantial slowdowns > with gcc 3 especially on Athl...

On 02/25/2014 04:50 PM, John Criswell wrote: > > I think a more interesting idea would be to use LLVM to perform > instrumentation and then to use Valgrind to instrument third-party > libraries linked into the program. > > What I'm imagining is this: Let's say you instrument a program with > SAFECode or Asan to find memory safety errors. When you run the program >

Hi all, Hope you people do not feel irritated for repeatedly sending mail on Time series. Here I got another problem on the same, and hope I would get some answer from you. I have following dataset: data[,1] [1] 4.96 4.95 4.96 4.96 4.97 4.97 4.97 4.97 4.97 4.98 4.98 4.98 4.98 4.98 4.99 4.99 5.00 5.01 [19] 5.01 5.00 5.01 5.01 5.01 5.01 5.02 5.01 5.02 5.02 5.03 5.03 5.03

Hi, only one letter got to valgrind-developers mailing list. I'll quote the first message of the thread so that those who do not read llvmdev knew what's this discusssion about. === Begin of the first message === > Hi, > > I've seen on the LLVM's Open Projet Page [1] an idea about using LLVM to > generate native code in Valgrind. For what I know, Valgrind uses libVEX > to translate native instructions into a bitcode, used to add the >...

I will try to explain this as best I can. I have two computers; one a Supermicro X10SAE running CentOS 6, the other a very old DOS box.[*] The DOS box runs a CCD camera, sending images via Ethernet to the X10SAE. Thus, the X10SAE runs a Python server on port 5700 (a socket which binds to 5700 and listens, and then accepts a connection from the DOS box; nothing fancy).[**] The DOS box connects to

I''m a bit new to working on a rubyforge/sourceforge/open source project, so excuse my obliviousness. What is the preferred way of submitting a patch to wxruby? Thanks, Nick