search for: weisberg

Is there an existing function to compute Cook-Weisberg confidence curves for non-linear model parameters in R? Kari Ruohonen -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe"...

...to tell me is that the X-Fi drivers are junk. What I'm trying to understand is why every other sound program on the system works well with it, but Wine won't recognize it at all. Maybe a clue is that the X-Fi driver doesn't provide the legacy OSS interface? You tell me... -- Jason Weisberger jbdubbs at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.winehq.org/pipermail/wine-users/attachments/20080619/a1fd59c3/attachment.htm

...39;t work for two reasons: 1. The statement m1 <- update(m, ~.+I(predict(m)^2)) can't see 'm' in the call to predict. 2. If in creating m missing values had been present, then predict(m), even if it could be computed, could be of the wrong length. Can anyone help? -- Sanford Weisberg, sandy at stat.umn.edu Office and mailing address: University of Minnesota, School of Statistics 312 Ford Hall, 224 Church St. SE, Minneapolis, MN 55455 612-625-8355, FAX 612-624-8868 St. Paul office: 146 Classroom-Office Building, 612-625-8777

...Effect Displays for Linear, Generalized Linear, Multinomial-Logit, Proportional-Odds Logit Models and Mixed-Effects Models Authors@R: c(person("John", "Fox", role = c("aut", "cre"), email = " jfox@mcmaster.ca"), person("Sanford", "Weisberg", role = "aut", email = "sandy@umn.edu"), person("Michael", "Friendly", role = "aut", email = "friendly@yorku.ca "), person("Jangman", "Hong", role = "aut"), person("Robert", "A...

...rame() > class(fred) [1] "data.frame" > test.fn <- function(x,class=class(x)) {class} > test.fn(fred) Error in test.fn(fred) : promise already under evaluation: recursive default argument reference or earlier problems? R 2.5.1 on both Windows and SUSE Linux. -- Sanford Weisberg, sandy at stat.umn.edu Office and mailing address: University of Minnesota, School of Statistics 312 Ford Hall, 224 Church St. SE, Minneapolis, MN 55455 612-625-8355, FAX 612-624-8868 St. Paul office: 146 Classroom-Office Building, 612-625-8777

I'm running Wine 0.9.2 on FC2, I was under the impression that this was the latest stable version, but I did some looking around and found that it's simply the latest version with official RPMs from the wine project. Is there a reason the RH/FC packages have not been updated in over half a year? Is there just a new place where I should be getting them from?

...elative difference: 3" > all.equal(2, 4) [1] "Mean relative difference: 1" > all.equal(3, 4) [1] "Mean relative difference: 0.3333333" the messages start making much less sense. I tried Wikipedia [1], but the description is cryptic, as is the help page. Also, Fox and Weisberg (2011) don't explain this particular message. Regards Liviu [1] http://en.wikipedia.org/wiki/Mean_difference#Relative_mean_difference -- Do you know how to read? http://www.alienetworks.com/srtest.cfm http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader Do you know how to...

Hello, I am new to R, and I am trying to figure out how to use it for a random effects model. I am using version 2.4.0, and I also have the book Applied Linear Regression by Sanford Weisberg. I have four variables: Swimmer, Sex, Swim, and Difference. Swimmer identifies the number assigned to a particular person. Sex is male/female. Swim identifies the number swim from 1 to 6. Difference is my variable of interest (random). The book says I should run something like this: >...

How I can do to appear all Windows Programs Shortcuts automatically in my "Applications" menu on Ubuntu? Thank you! Ale (hope I not be dreaming or expected too much of wine so sooner :)

How does one go about getting a newer version of an application added to the AppDB in order to provide reports as to what does and does not work with that version of the application when run via Wine? In particular I'd like to add my observations regarding v4.31 of Pegasus Mail but it is not one of the listed versions. -- Jim

Full_Name: Sanford Weisberg Version: 1.9.1 OS: Win XP Submission from: (NULL) (160.94.148.2) > wm <- read.table(url("http://www.stat.umn.edu/~sandy/wmdata0.txt"), header=TRUE) > mean(wm$Spd1) [1] 7.7773 > summary(wm$Spd1) Min. 1st Qu. Median Mean 3rd Qu. Max. 0.222 4.780 7.550 7.780...

Well I have installed Ubuntu 8.40, Wine 9.59, and World of Warcraft, and it took me some time to get it working, but I finally did. Now, however, I'm having several problems with the way it runs. Namely: -the mouse is very slow and skippy at moving when in WoW -lots of objects in the game fail to render (the ground usually doesn't render either) -my FPS in the middle of nowhere, with

I have a question regarding customising contrasts for linear models I read the section in Fox/Weisberg's CAR (2nd ed.) and was thinking--apparently erroneously--that the following two snippets would do the same: # approach 1: default treatment contrasts # generate data set.seed(1111) y <- c(rnorm(1000, -1), rnorm(1000, 0), rnorm(1000, 1)) x <- factor(rep(letters[1:3], each=1000)) # tryin...

...in: https://stat.ethz.ch/pipermail/r-help/2006-May/094765.html However, Anova does calculate p-values from Wald chi-square tests for fixed terms from "mer" objects (as well as from "lme" objects, from lme). I suppose that the key to understand the logic for this is in Fox & Weisberg's commentary in "An R Companion to Applied Regression" (2nd edition, p. 272), where they say: "Likelihood ratio tests and F tests require fitting more than one model to the data, while Wald tests do not." Unfortunately, that's too brief a commentary for me to understand...

...ors.   The problem is that I don’t know how to obtain F in the other cases (H1: equal mesor, H2.x: equal amplitude and acrophase, H3: equal rhythmic components). I suppose I have to use dummy variables, but I don’t know how to do it.   I could access something similar in a solution manual of  a Weisberg book (1985), chapter 6, problem 9, as follows: m1 <- lm(Yvar~ Xvar + Fvar + Fvar:Xvar, na.action=na.omit, weights=theWeights)  # this is model 1 the most general m2 <- lm(Yvar~ Xvar + Fvar            , na.action=na.omit, weights=theWeights)  # this is model 2 parallel m3 <- lm(Yvar~ Xvar...

...seriously peer-reviewed. Everybody in the R community is encouraged to submit their R products to JSS, we even welcome "code snippet" type of contributions (which will go into a separate section of the journal). Volume 7, 2002, consists so far of the following three issues issue 1: S. Weisberg Dimension reduction regression in R. issue 2: A. Zeileis, F. Leisch, and K. Hornik strucchange: an R package for testing for structural change in linear regression models issue 3: G. Marsaglia and W.W. Tsang Some difficult-to-pass tests of randomness. === Jan de Leeuw; Professor and Chair, UCLA...

...seriously peer-reviewed. Everybody in the R community is encouraged to submit their R products to JSS, we even welcome "code snippet" type of contributions (which will go into a separate section of the journal). Volume 7, 2002, consists so far of the following three issues issue 1: S. Weisberg Dimension reduction regression in R. issue 2: A. Zeileis, F. Leisch, and K. Hornik strucchange: an R package for testing for structural change in linear regression models issue 3: G. Marsaglia and W.W. Tsang Some difficult-to-pass tests of randomness. === Jan de Leeuw; Professor and Chair, UCLA...

...R. John-Chandran; D. Johnson; M. Kuhn; J. Laake; F. Lavancier; T. Lawrence; R.A. Lamb; J. Lee; G.P. Leser; [... truncated] Warning in odbcUpdate(channel, query, mydata, coldata[m, ], test = test, : character data 'John Fox [aut, cre], Sanford Weisberg [aut], Douglas Bates [ct b], Steve Ellison [ctb], David Firth [ctb], Michael Friendly [ctb], Gregor Gorja nc [ctb], Spencer Graves [ctb], Richard Heiberger [ctb], Rafael Laboissiere [ctb ], Georges Monette [ctb], Henric Nilsson [ctb], Derek Ogle [ctb], Brian Ripley [ ctb], Achim Zeileis [ctb],...

...asets, datasheets, data editors, transformations, analysis methods, models and plugins --- solves the lack of standards for such things. The implementation is slow for data objects and needs to be re-architected. The implementation for the others is more than adequate. 3) At the suggestion of Sandy Weisberg, I have incorporated PARCIL, a C-to-Lisp Parser. This allows users to type a=2*(b+c)^2 rather than the awkward lisp equivalent: (setf a (^ (* 2 (+ b c)) 2)) (I'm sorry I can't give a proper reference to PARCIL, I'm not at home). 4) Pedro Valero, Gabriel Molina, Michael Friendly and I,...

...inated, species denotes the species (wheat, mungbean, or rice) Start and end denote the beginning and end of a period of time and germinated denotes how many seeds germinated during that period of time. Prop represents the proportion of seeds that have germinated. I have attempted to mimic Fox and Weisberg's appendix to Nonlinear Regression found here. https://socserv.socsci.mcmaster.ca/jfox/Books/Companion/appendix/Appendix-Nonlinear-Regression.pdf My first step is to look at a single species, wheat, and use nls on the individual temperatures. I have tried to use both the nlsList function and...