[R] Descision boundary in MASS LDA

Hi, Is anyone able to give me references or explain how the decision boundary is calculated by the LDA function in MASS. e.g. p 335-336 of MASS 4th Ed. Since it's curved I'm assuming they're doing something like fitting 2-D Gaussians to the groups and plotting the contour line describing the

[R] Be at metropolis

HOT ALERT! Campaign for: UTEVPrice: $0.016 Market: hellish!! 500% profit guaranted, it's progressive energy company. Information: The nature of UTEV's main business is to commercialize environmentally-friendly technologies.UTEV's activities are oriented towards sustainable

[R] How-To construct a cov list to use a covariance matrix in factanal?

' is not a valid covariance list Anyway, thanks for any thoughts you might have on this. Alistair Campbell -- Dr Alistair Campbell, PhD Senior Lecturer in Clinical Psychology School of Psychology James Cook University Townsville Queensland Australia Ph: +61 7 47816879

Re: [R] How-To construct a cov list to use a covariance matrix in factanal?

. Any thoughts would be appreciated. -- Dr Alistair Campbell, PhD Senior Lecturer in Clinical Psychology School of Psychology James Cook University Townsville Queensland Australia Ph: +61 7 47816879 __ R-help@stat.math.ethz.ch mailing list https

[R] can I call user-created functions without source() ?

, Rob -- Rob Campbell - Research Student Autistic Bacteriophage Research Group www.autisticBacteriophage.notlong.com Oxford www.robertcampbell.co.uk __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

[R] ks.test one-sample - where can I get a list of the strings specifying the distribution?

specifying the possible distributions? and more specifically What would be the string and following parameters for a uniform(0,1) distribution? regards Desmond Campbell Room C0.29, SGDP Centre Institute of Psychiatry, De Crespigny Park, London SE5 8AF Tel: +44 (0) 20 7848 0236 Fax: +44 (0) 20

Re: [R] ks.test one-sample - where can I get a list of the strings specifying the distribution?

Dear Gabor Thanks very much. I knew about help(), but didn't know there was a help.search(). I have found what I was looking for by using it. Desmond Campbell Room C0.29, SGDP Centre Institute of Psychiatry, De Crespigny Park, London SE5 8AF Tel: +44 (0) 20 7848 0236 Fax: +44 (0) 20 7848

Re: [R] ks.test one-sample - where can I get a list of the strings specifying the distribution?

Douglas Thank you very much. That was very helpful. Desmond Campbell Room C0.29, SGDP Centre Institute of Psychiatry, De Crespigny Park, London SE5 8AF Tel: +44 (0) 20 7848 0236 Fax: +44 (0) 20 7848 0866 Announcing the 7th MRC SGDP SUMMER SCHOOL 17 - 21 July 2006

Re: [R] Is there a way to view S-PLUS script files in R

You can open .ssc files in Windows Notepad, then either cut and paste the commands or type them out. Typing them out may seem a little excessive but it is one way to learn the syntax and structure of S/R, or should that be R/S HTH Phineas xpRt.wannabe [EMAIL PROTECTED] 03/17/06 4:44 AM Dear

Re: [R] exponent confusion

-0.7^1.22 [1] -0.6471718 (-0.7)^1.22 NaN Arithmetically this makes perfect sense, syntactically I'm not sure it does. z-c(-0.7) z == -0.7 [1] TRUE z^1.22 [1] NaN I remember a programming homily: if you are unsure of the operator precedence then you shouldn't assume the person who has to

Re: [R] Unable to configure R 2.2.1 on Solaris 5.10 x86_64

are unable to do this I would suggest that you build GCC from sources, and rather than use the Sun Software companion disk download the most recent versions of the various libraries and utilities from www.sunfreeware.com. HTH Phineas Campbell Birkbeck College University of London

Re: [R] Generating random walks

cumsum(rnorm(100)+c) HTH phineas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of oliver wee Sent: Wednesday, February 15, 2006 12:41 PM To: r-help@stat.math.ethz.ch Subject: [R] Generating random walks Hello, here is another question, how do I generate

Re: [R] Generating random walks

In retrospect x-cumsum(rnorm(n=100, mean=c)) will probably work quicker Phineas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Phineas Campbell Sent: Wednesday, February 15, 2006 1:01 PM To: 'R-Help Subject: Re: [R] Generating random walks

Re: [R] Learning - Example programs

Typing the function name at the prompt prints that body of the function. By working thrugh the steps in the boot function, helped me both understand the way the bootstrap works and write better R code. Phineas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf

[R] Stochastic Volatility

the literature has drifted back toward less satisfactory GARCH and EGARCH models? This question is somewhat moot as if I choose to pursue this I will implement a model myself. Phineas Campbell __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

Re: [R] about set.seed

I'm not an expert on set.seed but I think it would be helpful if you could post the relevant section of your code. Phineas Campbell [EMAIL PROTECTED] 09/21/05 7:46 AM Hi there, I have some question about set.seed these days which I may need your help. I'm working on some sampling project

Re: [R] Linux Standalone Server Suggestions for R

I think I remember reading somewhere that using Sun Studio compiler generates binaries that run faster than those built using GCC. Presumably this performance gain is increased if the Sun Fortran 95 compiler is used. Whether the substantial cost of Sun Studio is money better spent than that on

[R] class 'named'

I'm working through the examples in Venables and Ripley in the 'New-style Classes' chapter. On a call to representation, in the lda example, it is unable to find the class named. Is the class named defined anywhere? I've loaded the library methods but this hasn't helped. Phineas Campbell

[R] Off Topic Simulation Techniques.

on the functional. Are there any authors who have followed this approach? Phineas Campbell __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting

[R] Relationship between dyn.load and library.dynam

or pointers to manuals gratefully received Phineas Campbell version _ platform sparc-sun-solaris2.9 arch sparc os solaris2.9 system sparc, solaris2.9 status major2 minor1.1

Re: [R] STAR models estimation with R

or paper. Hamilton, see Time Series Analysis, uses the EM algorithm to estimate such models so it should be possible to do in R. HTH Phineas Campbell -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of noomen ajmi Sent: Tuesday, June 28, 2005 8:44 AM To: r-help

[R] Syntax error with .First.lib

solaris2.9 system sparc, solaris2.9 status major2 minor0.1 year 2004 month11 day 15 language R Phineas Campbell [EMAIL PROTECTED] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do

Re: [R] skewness and kurtosis in e1071 correct?

This is probably an issue over definitions rather than the correct answer. To me skewness and kurtosis are functions of the distribution rather than the population, they are equivalent to expectation rather than mean. For the normal distribution it makes no sense to estimate them as the

RE: [R] Solaris 10 on amd and R-2.1.0

This might solve your problem without helping. Having spent I bit of time trying to build R with the pkgadd version of GCC from Sunfreeware and not getting anywhere I downloaded the source for GCC 3.4.2 and built this, then used this to build R. Everything worked fine. HTH Phineas

Re: [R] distance between distributions

be found and a pair of papers by Bickel and Freedman, see Annals Of Statistics Vol 9, Number 6. HTH Phineas Campbell Vadim Ogranovich [EMAIL PROTECTED] 05/06/05 1:36 AM Hi, This is more of a general stat question. I am looking for a easily computable measure of a distance between two

Re: [R] Off topic excel question

While not wishing to turn this into a Excel support group Select the dates and the value ranges on the sheets. Insert-chart-XY (Scatter) Then just wizzard your way through the various settings HTH Phineas. Any more questions offline me at pcampbellHATecon.bbk.ac.uk Laura Holt [EMAIL

Re: [R] pointer to comments re Paul Murrell's new book, R, SAS on Andrew Gelman's blog

to thank the R Core group and ETH for providing the harware for the mailing list. Phineas Campbell Tony Plate [EMAIL PROTECTED] 04/22/05 4:15 AM There are some interesting comments re Paul Murrell's new book, R, SAS on Andrew Gelman's blog: http://www.stat.columbia.edu/~cook/movabletype

[R] PostScript scatter plot, losing points at RHS

be; and extending the height and width makes no difference. Version 1.9.0 (2004-04-12); running on Linux Fedora Core 2. TIA, Jon C. -- Jonathan G Campbell http://www.jgcampbell.com/ +44 (0)7974 663 262 __ R-help@stat.math.ethz.ch mailing list https

Re: [R] PostScript scatter plot, losing points at RHS

On Apr 9, 2005 4:45 PM, Uwe Ligges [EMAIL PROTECTED] wrote: Jonathan Campbell wrote: I'm using the following sequence to plot a scatter plot to PostScript. Those familiar with the Iris LDA example in MASS will recognise what I'm at. No, I don't recognise: - Which edition of MASS

Re: [R] PostScript scatter plot, losing points at RHS

. -- Jonathan G Campbell http://www.jgcampbell.com/ +44 (0)7974 663 262 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Re: [R] Mean calculated from R1.9.1 different from R2.0.1

with the random number generators in R? Phineas Campbell Chang-Heok Soh [EMAIL PROTECTED] 02/10/05 8:44 AM Hello, I ran my simulations on the Unix verson of R1.9.1 and the Windows version of R2.0.1 on XP. I kept getting different values for the mean of the same column of the same matrix

RE: [R] Re: A somewhat off the line question to a log normal distribution

to loose by logging the data. Phineas Campbell -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Vito Ricci Sent: Thursday, December 02, 2004 10:08 AM To: [EMAIL PROTECTED] Subject: [R] Re: A somewhat off the line question to a log normal distribution Dear

[R] GCC

version _ platform sparc-sun-solaris2.9 arch sparc os solaris2.9 system sparc, solaris2.9 status major1 minor7.1 year 2003 month06

[R] Empirical P Value

month06 day 21 language R Phineas Campbell __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

[R] Block Bootstrap Simulation

the simulation without the loop gave me an insight into the solution of the problem Is there a way of doing this without using a loop? s-1:n v-sample(s, replace=TRUE) w-v:(v+k) Doesn't work Phineas Campbell www.phineas.pwp.blueyonder.co.uk __ [EMAIL PROTECTED

RE: [R] off topic publication question

that the use of we for single author papers is not universal. HTH Phineas Campbell http://www.phineas.pwp.blueyonder.co.uk/ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Erin Hodgess Sent: Tuesday, June 08, 2004 6:11 PM To: [EMAIL PROTECTED] Subject: [R] off

[R] Seasonal ARIMA question - stat package (formerly ts)

)] + [beta3 * (y(t-12) - beta0)] + [beta4 * epsilon(t-12)] This has proved unsuccessful. What equation underlies this arima prediction? Is there something different that happens Many thanks for your help, Keith Campbell Keith Campbell Researcher ROTELLA CAPITAL MANAGEMENT |180 N. Stetson

Re: [R] Size of R user base

use it as part of a distribution, eg Debian. -- Rory Campbell-Lange [EMAIL PROTECTED] www.campbell-lange.net __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R

Re: [R] Re: [R-gui] Editor in R

to end into buffer p paste Rory -- Rory Campbell-Lange [EMAIL PROTECTED] www.campbell-lange.net __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R

[R] Help with character columns in a table

20, ] Thanks, Rory -- Rory Campbell-Lange [EMAIL PROTECTED] www.campbell-lange.net __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

[R] Ignorant lack of bliss : summarise table by column attribute

Introductory Statistics with R a good place to start? Thanks Rory -- Rory Campbell-Lange [EMAIL PROTECTED] www.campbell-lange.net __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

RE: [R] applying data generating function

It may be possible to do this without a loop but I haven't found a way ###Generate an array of 100 N(0,1) RVs z-rnorm(100) ###Build the array to store output x-vector(length=100) ###Create initial value x[1]-z[1] ###Loop though building series for(i in 2:100){

[R] Problem untarring R-1.8.1.tgz

utility or whether there is an error in the headers for the zip file. Anyone have any advice? Alistair Campbell James Cook University __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

[R] Re: Untarring R-1.8.1.tgz

Hi, Disregard my post. I used another utility and it worked perfectly. The others are obviously not up to the task! Cheers Alistair Campbell __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] MiceR

message: cannot open file `miceR/DESCRIPTION' END QUOTE I note from the web page that MiceR is described as a package for Unix and I am running R on Windows XP. Does it make a difference to the package? Thanks for any advice. Alistair Campbell James Cook University [[alternative HTML

Re: [R] citation() doesn?t work

Development Core Team}}, organization = {R Foundation for Statistical Computing}, address = {Vienna, Austria}, year = 2004, note = {ISBN 3-900051-00-3}, url = {http://www.R-project.org} } Seems to work. Alistair Campbell James Cook University

[R] Clinical significance as a package?

if there is a package developed for evaluating clinical significance using Jacobson and Truax's, or variations thereof, procedures? Cheers Alistair Campbell School of Psychology James Cook University Townsville QLD [[alternative HTML version deleted

[R] Can S-Plus packages be used in R without modification?

, and PAN. If not, does anyone know if someone has done the modification that would make these packages available in R? And/or, does anyone know of other packages that facilitate multiple imputation of missing data that can be run from R? Cheers Alistair Campbell School of Psychology James Cook

[R] Install on Solaris 5.9

. Phineas Campbell __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help