similar to: Programming using formulas

Dear R experts, I wrote already a couple of weeks ago but did not get any reply. Therefore I'll rephrase my question and hope some of you can give me some answers or some advice where better to look for an answer. In general I'm looking for information on how to program functions using formulas in order to write a nonparametric multivariate regression function with possible

Dear R experts, we are preparing an R-package to compute the Oja Median which contains some C++ code in which random numbers are needed. To generate the random numbers we use the following Mersenne-Twister implementation: // MersenneTwister.h // Mersenne Twister random number generator -- a C++ class MTRand // Based on code by Makoto Matsumoto, Takuji Nishimura, and Shawn Cokus // Richard J.

Dear R useRs, The new contributed packages 'ICS' and 'ICSNP' are available on CRAN. Descriptions: The 'ICS' package implements the 2 scatter matrix transformation to obtain an invariant coordinate system or independent components, depending on the underlying assumptions. The result of the transformation is an object of the S4 class ics which is provided by this

Dear R useRs, The new contributed packages 'ICS' and 'ICSNP' are available on CRAN. Descriptions: The 'ICS' package implements the 2 scatter matrix transformation to obtain an invariant coordinate system or independent components, depending on the underlying assumptions. The result of the transformation is an object of the S4 class ics which is provided by this

Dear list: since it took me a little while to figure out how to make use of naresid, I thought that the below R code might be useful as an example on the help page. Regards, Markus # generate some data x1 <- runif(20) y <- 10 + 5*x1 + rnorm(20) summary(lm.0 <- lm(y ~ x1)) # append some NA's to y y <- c(y, rep(NA, 5)) # generate some further x1s x1 <- c(x1, runif(5)) #

Dear list: since it took me a little while to figure out how to make use of naresid, I thought that the below R code might be useful as an example on the help page. Regards, Markus # generate some data x1 <- runif(20) y <- 10 + 5*x1 + rnorm(20) summary(lm.0 <- lm(y ~ x1)) # append some NA's to y y <- c(y, rep(NA, 5)) # generate some further x1s x1 <- c(x1, runif(5)) #

I discovered recently that the phrase "Oja median" produces no hits in Jonathan Baron's very valuable R search engine. I found this surprising since I've long regarded this idea as one of the more interesting notions in the multivariate robustness literature. To begin to remedy this oversight I wrote a bivariate version and then decided that writing a general p-variate version

Hi, Can we get the code for calculating Oja median for multivariate data Thanks and Regards Rahul Agarwal Analyst Equities Quantitative Research UBS_ISC, Hyderabad On Net: 19 533 6363 [[alternative HTML version deleted]]

Hi Roger, As we know that The Oja median has (finite) breakdown point 2/n, i.e., is not robust in any reasonable sense, and is quite expensive to compute, so do we have some better methodology to compute multivariate median Rahul Agarwal Analyst Equities Quantitative Research UBS_ISC, Hyderabad On Net: 19 533 6363 [[alternative HTML version deleted]]

L?hetit postia @uta.fi osoitteille: suvi.virtanen Postiasi ei voi toimittaa perille, koska yliopiston s?hk?posti- j?rjestelm?ss? ei ole t?llaista yksik?sitteist? osoitetta. Voit etsi? tarkoittamasi henkil?n s?hk?postiosoitetta osoitehaun avulla http://www.uta.fi/hakemisto/sahkopostiosoitteet.html Huomaa kuitenkin, ett? s?hk?postiosoitteiden listassa ovat mukana vain ne yliopistoyhteis?n

Hello, A little informal input on the TCP/UDP checksum deferral/offload: it fails for me. I have one Xen host, running a snapshot of xen-unstable at 2006-03-24 (9435:11fee62328cc). Each of its domUs are allocated their own /30, with the help of a hacked-up vif script. Prior to working around the problem, Domain-0 could establish TCP connections to other domains. In the case of SSH, it would

Gee, it's been a while since I posted a new version of winetricks. This is rather a big update. As always, online at http://kegel.com/wine/winetricks Please submit bug reports to http://code.google.com/p/winezeug/issues/list svn log since version 20081127: r264 | daniel.r.kegel | 2009-01-16 Don't set winver to win2K when installing .net 1.1. r263 | daniel.r.kegel | 2009-01-16 Add

Dear R-users: The following code produces two cones in two panels. What I would like to have is to have them in one, and to meet in the origin. Does anyone have any good ideas how to do this? Thanks for your help Jaakko library(lattice) A<-matrix(ncol=2, nrow=64) for(i in 0:63) { A[i+1,1]<-sin(i/10) A[i+1,2]<-cos(i/10) }

I use kmeans to classify spectral events in high and low 1/3 octave bands: #Do cluster analysis CyclA<-data.frame(LlowA,LhghA) CntrA<-matrix(c(0.9,0.8,0.8,0.75,0.65,0.65), nrow = 3, ncol=2, byrow=TRUE) ClstA<-kmeans(CyclA,centers=CntrA,nstart=50,algorithm="MacQueen") This works well when the actual data shows 1,2 or 3 groups that are not "too close" in a cross plot.

Hi, I am trying to install the rJava package in a Linux environment (Platform: x86_64-suse-linux-gnu (64-bit)), where I am facing an issue which I cannot solve so far and where I could require some help: The installation seems to go fine, however in the last step of the installation where loading the package is tested, the process fails with the following error: ** testing if installed package

Does the latest winelib compile and work on the Sparc? Are there any special patches/instructions for this? Are there any mirrors that have the precompiled binary winelib for Sparc? Thanks in advance.

I have a test area network that is not routed to the production network because of IP address space re-use between the two networks. I would like the puppetmaster to serve both the production and test area networks. The puppetmaster is on the production network. I understand the puppet to puppetmaster connect to be HTTP using SSL. Can I somehow setup the puppet clients to use an HTTP

Hello, I'm currently running OpenSSH 3.6.1p2 successfully on older Slackware Linux. Glibc in use is 2.2.2 and Linux-PAM 0.77. I have been compiling OpenSSH for couple years until now with options --sysconfdir=/etc/ssh --with-ipv4-default --with-pam \ --without-shadow --disable-suid-ssh Unfortunately, upgrading to =>3.7p1 makes PAM-authentication fail. Authentication simply

Hey, I'm new to wine and recently installed in an attempt to run windows games off of my mac laptop. I've had some degree of success recently (largely in that I've been able to install and play some games) with some help from other sources. However, Recently I've run into an problem that I'm not quite sure how to solve. I'm trying to install an English Patch for the visual

Hello, I just can't get point'n'print working correctly. Every time I double click printer, Windows (2k, NT) fails to install the drivers from print$ -share. I'm trying to use a generic postscript driver provided with Cups (modified MS Postscript driver). Linux distribution in use is Redhat. I have first set Cups working and printed test page with it - no problems. Then I