similar to: integer functions {was Inconsistencies (PR#550)}

Dear all, I was playing around with some C-code that I dynamically linked to R and noticed the following inconsistency: > dat <- matrix(1,3,3) > is.double(dat) [1] TRUE > is.integer(dat) [1] FALSE > dat <- matrix(1:9,3,3) > is.double(dat) [1] FALSE > is.integer(dat) [1] TRUE How did I find out? I passed `dat' to a double * in the C-code and printed out the matrix

Dear Berwin, Simply stacking the problems and treating the resulting observations as independent will give you the correct coefficients, but incorrect coefficient variances and artificially zero covariances. The approach that I suggested originally -- testing a linear hypothesis using the coefficient estimates and covariances from the multivariate linear model -- seems simple enough. For

Forgot to send one copy to R help. Sorry Megh Dal <megh700004@yahoo.com> wrote: Date: Wed, 7 May 2008 02:45:09 -0700 (PDT) From: Megh Dal <megh700004@yahoo.com> Subject: Re: [R] Solution of function To: Berwin A Turlach <berwin@maths.uwa.edu.au> Hi Berwin, Thanks for having look on my problem. However on ipop() function I see following: ipop solves the quadratic

Hi all, people who don't follow Linux Today regularly may want to check out: http://linuxtoday.com/developer/2003082000626OSSVDV My apologies if this is considered spam. Cheers, Berwin ========================== Full address ============================ Berwin A Turlach Tel.: +61 (8) 9380 3338 (secr) School of Mathematics and Statistics +61

Dear all, I would like to suggest changing the pairs.formula command such that a command like pairs(GNP ~ . - Year - GNP.deflator, longley) would behave in a similar fashion as lm(GNP ~ . - Year - GNP.deflator, longley) i.e., make a pairwise scatterplot of GNP and all other variables in the (longley) dataframe except for Year and GNP.deflator. The above command, with the

>>>>> "BDR" == Prof Brian D Ripley <ripley@stats.ox.ac.uk> writes: BDR> On Tue, 7 Mar 2000, Trenkler, Dietrich wrote: >> I think I've discovered what went wrong. >> >> My workspace included a function wilcox.test formerly copied from >> ctest. Now ctest ist part of the distribution and because of that I

.... I have a 64-bit CentOS 5.6 VM running on a 64-bit FC14 host. I notice that it has an automatic logout feature after a period of idleness, see below: [wam at centos-5, CFD, 5:52:45pm] 1183 % ll -tr LIST LIST.Update /usr/local/bin/P* /usr/local/bin/*WAM* ; ps -u wam -lf ; uname -a ; date ls: No match. F S UID PID PPID C PRI NI P SZ:RSS WCHAN STIME TTY TIME CMD 5 S

.... I have a CentOS 5.n VM running on a Fedora 14 server/host, installed using virt-manager, pretty plain vanilla. I use it to compile binaries to run under RHEL/CentOS 5.n OS. I occasionally notice that when the VM gets paged out by the server, it takes several minutes to get it back in :-/ (see below). On the host, logged in to a shell through a terminal window, this A.M.: [wam at Q6600,

G'day all, I guess it is still early enough in the year to wish everybody a happy and successful new year. I thought I should report that the installation of the CRAN package rstan regularly fails on my machine (a 64 bit linux box running Xubuntu 15.10). The reason being that I have the 32-bit and the 64-bit architecture of R installed, and my /tmp file is on a partition with about 1Gb

--MP_/kvy20nVajVG/n.8m=_ZjLAX Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline On Tue, 7 Oct 2008 19:31:03 +0800 Berwin A Turlach <berwin at maths.uwa.edu.au> wrote: > The attached patch (against the current SVN version of R) implements > the latter strategy. With this patch applied, "make check > FORCE=FORCE" passes

Dear friends, I met some problem on using GAM() function in R. Any help or suggestions are greatly appreciated. # My programs and problems are list below# library(splines) library(gam) point<-read.csv("d:/gam.csv",sep=",",header=TRUE) #read the data gam.opt<-gam(mark~lo(x,y,span=0.2)+lo(lstday2004,span=0.2)+lo(slope,span=0.2)+lo(ndvi2004,span=

.... I am using Samba 2.2.2 (from SGI freeware) under IRIX 6.5.20 very successfully until a few weeks ago. I use it to backup my Gtw 1600 MHz box using smbclient under cron for automated backups. I attach a small file of error messages I am getting now. This worked (for months) when I first set it up about 15-18 months ago. Unfortunately at some indetermniate time in the recent past (a few

Hi, everyone When I was using cv.lm(DAAG) , I found there might be something wrong with it. The problem is that we can't use it to deal with a linear model with more than one predictor variable. But the usage documentation hasn't informed us about this. You can find it by excuting the following code: xx=matrix(rnorm(20*3),ncol=3) bb=c(1,2,0) yy=xx%*%bb+rnorm(20,0,10)

The problem with POSIXt is that you must consider timezones and daylight vs. standard time issues even if you don't want to. This violates modularity (viz. your routines becomes coupled to unrelated information) and leads to subtle errors where different routines are assuming different time zones. The problem is that the time, date, day of the week, month, etc. of a date depend on its

Dear R-list, I'm not sure what I've found about a function in DAAG package is a bug. When I was using cv.lm(DAAG) , I found there might be something wrong with it. The problem is that we can't use it to deal with a linear model with more than one predictor variable. But the usage documentation hasn't informed us about this. The code illustrates my discovery: > library(DAAG)

Hi Martin, When I attended the LinuxWorld Expo in NYC back in January, I chatted with some folks at the AMD booth, as well as guys from Penguin Computing (where we bought our Opteron box). I was told that the Operton has this somewhat strange setup that the memory is controlled by one CPU. The net effect of this being that when both CPUs are running, one might only be running at around 90%

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I have contributed a "gam" library to CRAN, which implements "Generalized Additive Models". This implementation follows closely the description in the GAM chapter 7 of the "white" book "Statistical Models in S" (Chambers & Hastie (eds), 1992, Wadsworth), as well as the philosophy in "Generalized Additive Models" (Hastie & Tibshirani 1990,

I have contributed a "gam" library to CRAN, which implements "Generalized Additive Models". This implementation follows closely the description in the GAM chapter 7 of the "white" book "Statistical Models in S" (Chambers & Hastie (eds), 1992, Wadsworth), as well as the philosophy in "Generalized Additive Models" (Hastie & Tibshirani 1990,

(CC'ed to R-bugs ``for the record'') >>>>> "BDR" == Prof Brian D Ripley <ripley@stats.ox.ac.uk> writes: BDR> On Thu, 13 Jun 2002, Martin Maechler wrote: >> >>>>> "MM" == Martin Maechler >> <maechler@stat.math.ethz.ch> writes: >> >> >>>>> "BDR" ==