search for: monette

...e, and each should produce an object of class "citation". With just a single citEntry(), citation produces the expected output, with BibTeX entry: > citation("heplots") To cite package 'heplots' in publications use: John Fox and Michael Friendly and and Georges Monette (2008). heplots: Visualizing Tests in Multivariate Linear Models. R package version 0.8-4. URL http://CRAN.R-project.org/package=heplots A BibTeX entry for LaTeX users is @Manual{, title = {{heplots}: Visualizing Tests in Multivariate Linear Models}, author = {John Fox and Michael F...

...to read that way): library(magrittr) "f 147/1315/587 2820/1320/587 3624/1321/587 1852/1322/587" %>% ? strsplit(' ') %>% ? unlist %>% ? sub('^[^/]*/*','',.) %>% ? sub('^[^/]*/*','',.) %>% ? paste(collapse = ' ') Georges Monette -- Georges Monette, PhD P.Stat.(SSC) | Associate Professor. Faculty of Science, Department of Mathematics & Statistics | North 626 Ross Building | York University | 4700 Keele Street, Toronto, ON M3J 1P3 | Telephone: 416-736-5250 | Fax: 416-736-5757 | E-Mail: georges at yorku.ca On 2017-10-...

...gestions: strings <- c("ASk/20005-01-45/90", "Alldatk/25-17-4567/990") x <- as.numeric(gsub("^[^-]*-|-.*$","",strings)) or x <- as.numeric(sub("^[^-]*-([0-9]+)-.*$","\\1",strings)) Best, Georges --------------------- Georges Monette, York University, Toronto On 08/04/2016 10:53 PM, Fox, John wrote: > Dear Val, > > Your question isn't entirely clear (to me), but this is what I think you want to do: > > ------------------ snip ---------------- > >> strings <- c("ASk/20005-01-45/90", &quo...

..."grDevices", : DESCRIPTION file of package 'heplots' is missing or broken The DESCRIPTION file is as follows: Package: heplots Type: Package Title: Visualizing Tests in Multivariate Linear Models Version: 0.8-3 Date: 2008-10-28 Author: John Fox, Michael Friendly, and Georges Monette Maintainer: John Fox <jfox at mcmaster.ca> Depends: car, graphics, stats Suggests: rgl, candisc LazyLoad: yes LazyData: yes Description: Represents sums-of-squares-and-products matrices for linear hypotheses and for error using ellipses (in two dimensions) and ellipsoids (in three dimension...

Dear R list members, I'd like to produce rug plots at the bottom of panels in a trellis display (using the lattice package), but par("usr") doesn't return user coordinates for panels, and consequently rug fails, as the following example (suggested to me by Georges Monette) illustrates: > x <- rnorm(50) > y <- rnorm(50) > f <- factor(sample(c('a','b','c'),size=50, replace=T)) > z <- xyplot(y~x|f, + panel = function(x,y,...) { + panel.xyplot(x,y,...) +...

I have a file containing "words" like a a/b a/b/c where there may be multiple words on a line (separated by spaces).? The a, b, and c strings can contain non-space, non-slash characters. I'd like to use gsub() to extract the c strings (which should be empty if there are none). A real example is "f 147/1315/587 2820/1320/587 3624/1321/587 1852/1322/587" which

Hi, I'm using glm function to do logistic regression and now I want to know if it exists a kind of R-squared with this function in order to check the model. Thank you.

...ydata, 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], R-Core [ctb]' truncated to 255 bytes in column 'Autho r' Warning in odbcUpdate(channel, query, mydata, coldata[m, ], test = test, : character data 'John Fox [aut, cre], Liviu Andronic [ct...

...ith factors. You can see an example of what I need in fig 9.13 p265 from Hastie and Tibshirani book (1990). It's clearly stated that in ?gam "Interactions with nonparametric smooth terms are not fully supported". I have found a trick in a former http://www.math.yorku.ca/Who/Faculty/Monette/S-news/2284.html, using NAs and na.gam.replace argument, but some points are still unclear for me. First the prediction of new data (using predict function) is not so easy (see script below), and need a close reading from section 7.3.2 of the Chambers and Hastie (1992). Second I need to have the...

Georges Monette and I would like to announce a new package, cv, now on CRAN, which implements cross-validation of regression models. Some of the functions supplied by the package: - cv() is a generic function with a default method and computationally efficient "lm" and "glm" methods, alon...

Georges Monette and I would like to announce a new package, cv, now on CRAN, which implements cross-validation of regression models. Some of the functions supplied by the package: - cv() is a generic function with a default method and computationally efficient "lm" and "glm" methods, alon...

Longitudinal and Multilevel Data in R and Stan ICPSR short course: May 28 to June 1, 2018 May 28: Introduction to R by John Fox May 29 to June 1: Longitudinal and Multilevel Data in R and Stan by Georges Monette Sponsored and organized by ICPSR, University of Michigan and held at York University in Toronto, Ontario Course description:https://www.icpsr.umich.edu/icpsrweb/sumprog/courses/0226 Applications:https://www.icpsr.umich.edu/icpsrweb/content/sumprog/registration.html For further information, cont...

Dear Val, Your question isn't entirely clear (to me), but this is what I think you want to do: ------------------ snip ---------------- > strings <- c("ASk/20005-01-45/90", "Alldatk/25-17-4567/990") > location <- regexpr("-[0-9]*", strings) > x [1] "01" "17" > x <- substring(strings, location + 1, location +

Hi Folks, Could anyone point me to a good reference on linear regression models? Specifically, I am trying to gain an intuitive feel for how the standard error values are calculated for the parameter estimates. My understanding is that these are computed using the variance-covariance matrix computed from the input data matrix. Although I think I understand the math, I still don't have a

...jectory reveals how an individual's health changes over time, in relation to her or his personal characteristics, such as age, income and family characteristics. Also it is possible to incorporate an additional level of ?community? effects. This part of SPIDA will be taught by Professor Georges Monette of York University. For the lectures and the daily computer lab sessions in SPIDA, we will be using R, an independent open source (i.e., free) statistical software package with wide-ranging pre-programmed statistical procedures and capacity for programming tailored statistical analyses. In additio...

Hi all I am trying t extract a variable from a column ASk/20005-01-45/90 Alldatk/25-17-4567/990 I want to assign a variable to the numbers coming the first"-" x=01 for the first and x=17 for teh second I tried using gsub but did not work x=gsub("-") any help? [[alternative HTML version deleted]]

...said Bill Hunt, President and CTO at Stroudwater Contact Point. "Our next step is to integrate the PIKA on board fax solution." Unlimitel Inc. offers VoIP services to business customers across Canada using the VoIP/PSTN network and was looking for a way to deliver reliable fax. Stephan Monette, President of Unlimitel stated: ?Using Asterisk and the PIKA [high density analog] Daytona board was quick and easy. We were able to demonstrate the stability of the fax service in our lab within 24 hours!? Kanatek Technologies Inc. is an Ottawa, Ontario-based systems integrator delivering IT con...

..., the upstream DESCRIPTION [with lines broken to 80 cols] file is included below: Package: car Version: 1.0-5 Date: 2003/5/26 Title: Companion to Applied Regression Author: John Fox <jfox@mcmaster.ca>. I am grateful to Douglas Bates, David Firth, Michael Friendly, Georges Monette, Brian Ripley, and Sanford Weisberg for various suggestions. Maintainer: John Fox <jfox@mcmaster.ca> Depends: R (>= 1.7.0), modreg Description: This package accompanies J. Fox, An R and S-PLUS Companion to Applied Regression, Sage, 2002. The package contains...