search for: lunneborg

...lear to me that one can. If the singular value decomposition of A is the triple product P d Q', then the singular value decomposition of A'A=S is Q d^2 Q'. The information about the orthonormal matrix P is lost, is it not? ********************************************************** Cliff Lunneborg, Professor Emeritus, Statistics & Psychology, University of Washington, Seattle Visiting: Melbourne, Feb-May 1999, Brisbane, Jun-Aug 1999, Sydney, Sep-Nov 1999, Perth, Dec 1999-Feb 2000 cliff at stat.washington.edu

...d line. When I type: t.test(y, group) it just compares y and group as though they represent the two samples. I tried doing something with tapply(y, group) but don't know how that works. If someone knows, please email me. Thanks. ********************************************************** Cliff Lunneborg, Professor Emeritus, Statistics & Psychology, University of Washington, Seattle cliff at ms.washington.edu

...o StatSci Europe published a handy little "Complete Listing of S-PLUS Functions", categorized in some way. I found it useful. Something similar for R would not go amiss. I know, it would want to be 420 pages rather than 42. ********************************************************** Cliff Lunneborg, Professor Emeritus, Statistics & Psychology, University of Washington, Seattle cliff at ms.washington.edu

...nd(conf, matrix(qq[, 1], ncol = 2), matrix(hinv(2 * t0 - qq[, 2]), ncol = 2)) out } <environment: namespace:boot> Why did getAnywhere not "see" basic.ci in the environment from which I "got" it? ********************************************************** Cliff Lunneborg, Professor Emeritus, Statistics & Psychology, University of Washington, Seattle cliff at ms.washington.edu

...!e.test], " does not exist in pos =", pos,".\n\n") } } #end of case where object does not exist in target directory } #end of function definition -------------------------------------------------- ********************************************************** Cliff and/or Pat Lunneborg Temporarily in Salobrena Costa Granada, ESPANA Nov 2002 thru Jan 2003 cliff at ms.washington.edu or lunneborg at attbi.com

...(Sys.getenv("FOOBAR"), "\n") coo\bardoh\exabc"def' " What would some Windows examples look like? I love R, and I would really like to learn something more about how it is being customized for me and how I can (if I should) try to customize it myself. Clifford E. Lunneborg Emeritus Professor, Statistics and Psychology University of Washington, Seattle Email: cliff at ms.washington.edu Phone: 206 364 2013 Fax: 206 366 1078 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/...

To follow up on my previous question, suppose a user R session wants to unload one workspace and load another within an R session. Is the following the correct sequence? 1. save.image() to save the current workspace as .Rdata in the current working directory. 2. rm(list=ls()) to remove everything from the workspace. 3. setcwd("xxx") to set the new working directory. 4.

Hello R-users, is it possible to navigate from one workspace to the other from within an R session or does one has to close R and restart it from the directory where resides the desired workspace? For example from Splus I have this little function, see at the end, which I used all the time to navigate between valid Splus directories. I find this particularly usefull when I develop new

Hi, I am new to R (I have most of my experience in SAS and SPSS). I was wondering if anyone has used both Resampling Stats and R, and could comment on strengths/relationships. Also, I have no clue on how to do the various examples from the book "Resampling: The New Statistics" in R. Can anyone give me some possible starting points? Or websites/books? Thanks, Brandon

Hi, this is both a statistical and a R question... what would the best way / test to detect an outlier value among a series of 10 to 30 values ? for instance if we have the following dataset: 10,11,12,15,20,22,25,30,500 I d like to have a way to identify the last data as an outlier (only one direction). One way would be to calculate abs(mean - median) and if elevated (to what extent ?) delete the

Hello, In the latest 'Scientific Computing World' magazine (issue 78, p. 22), there is a review on free statistical software by Felix Grant ("doesn't have to pay good money to obtain good statistics software"). As far as I know, this is the first time that R is even mentioned in this magazine, given that it usually discuss commercial products. In this article, the analysis

Hello, In the latest 'Scientific Computing World' magazine (issue 78, p. 22), there is a review on free statistical software by Felix Grant ("doesn't have to pay good money to obtain good statistics software"). As far as I know, this is the first time that R is even mentioned in this magazine, given that it usually discuss commercial products. In this article, the analysis

I'm teaching a class and using R for the first time. We're talking about the bootstrap, and I've been trying to get R to replicate some simple bootstrap programs with no success. I'd like to be able to use the boot.ci function to produce confidence intervals (non-parametric) for some simple statistics, and this requires first creating a "boot" object. The boot

Dear R users, I?m a beginner user of R and I?ve a problem with permutations that I don?t know how to solve. I?ve 12 elements in blocks of 3 elements and I want only to make permutations inter-blocks (no intra-blocks) (sorry if the terminology is not accurate), something similar to: 1 2 3 | 4 5 6 | 7 8 9 | 10 11 12 ----------1st permutation 1 3 2 | 4 5 6 | 7 8 9 | 10 11 12 NO - - 3 2 1

....Rdata file containing these and other handy functions together with a brief supporting document can be downloaded from a course website: http://faculty.washington.edu/lunnebor/Stat342/ Click on Exercises to get to the proper page. ********************************************************** Cliff Lunneborg, Professor Emeritus, Statistics & Psychology, University of Washington, Seattle cliff at ms.washington.edu ----- Original Message ----- From: <r-help-request at stat.math.ethz.ch> To: <r-help at stat.math.ethz.ch> Sent: Monday, July 12, 2004 3:04 AM Subject: R-help Digest, Vol...