Re: [R] Matrix of dummy variables from a factor

Dear Charles, Try model.matrix(~f)[,-1]. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From

Re: [R] is it possible to use R to edit an EXCEL spreadsheet so I can create a searchable EXCEL database of R packages?

- readLines(c:/temp/Packages.txt) packages - gsub(^\ *, , gsub(\ *$, , packages)) packages - matrix(packages, ncol=3, byrow=TRUE) write.table(packages[,1:2], c:/temp/Packages2.txt, sep=,, row.names=FALSE, col.names=FALSE) I hope this helps, John John Fox

[R] FW: Error in structural equation model - The model hasnegativedegrees of freedom

Dear R-help list members, I forgot to copy my reply to the r-help list. Here's most of it. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Error in structural equation model - The model has negativedegrees of freedom

this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED

Re: [R] Tiger Mac stalls running Rcmdr program

structural-equation modeling or meta-analysis. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From

Re: [R] type III sums of squares in R

matrix. I should probably elaborate the warning about Type-III tests in the help page for Anova(), but perhaps it would help to know that the issue is discussed at greater length in the book with which the car package is associated. I hope this helps, John John

Re: [R] residuals in logistic regression model

Dear Urania, The residuals method for glm objects can compute several kinds of residuals; the default is deviance residuals. See ?residuals.glm for details and references. I hope this helps. John John Fox Department of Sociology McMaster University Hamilton

Re: [R] residuals in logistic regression model

Dear Urania, -Original Message- From: Urania Sun [mailto:[EMAIL PROTECTED] Sent: Thursday, November 24, 2005 8:52 PM To: John Fox Cc: r-help@stat.math.ethz.ch Subject: Re: [R] residuals in logistic regression model Thanks, Professor. But is it ok to write residuals

Re: [R] _simple_ introduction to bayesian methods?

Dear Joshua, You might take a look at Lancaster, An Introduction to Modern Bayesian Econometrics. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] graphing help

Dear Anthony, You can use xlim in plot() to reverse the x-axis. For example, x - 1:10 y - x plot(x, y, xlim=rev(range(x))) (I'm pretty sure, by the way, that this question has been asked before.) I hope this helps, John John Fox Department of Sociology

Re: [R] Autoloading R Commander

R starts, this could go in Rprofile.site in R's etc subdirectory. For more detail, see ?Startup, as others have suggested. local({ old - getOption(defaultPackages) options(defaultPackages = c(old, Rcmdr)) }) I hope this helps, John John Fox Department

Re: [R] Autoloading R Commander

Dear Stephen, As a brief addendum, this information (and other information) is in the Rcmdr installation notes, at http://socserv.socsci.mcmaster.ca/jfox/Misc/Rcmdr/installation-notes.html. Sorry I forgot that when I posted my original answer. John John Fox

Re: [R] loess: choose span to minimize AIC?

=result$minimum, criterion=result$objective) } A little experimentation suggests that aicc1 doesn't seem to behave reasonably. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

Re: [R] Interpretation of output from glm

, and Related Methods. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED

Re: [R] basic mac question

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George

Re: [R] Need advice about models with ordinal input variables

Dear Paul, I'll try to answer these question briefly. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Johnson Sent: Tuesday, November 08, 2005 2:42 PM To: r-help@stat.math.ethz.ch Subject: [R] Need advice about models with ordinal input

Re: [R] Interpretation of output from glm

Dear Pedro, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Pedro de Barros Sent: Tuesday, November 08, 2005 9:47 AM To: r-help@stat.math.ethz.ch Subject: [R] Interpretation of output from glm Importance: High I am fitting a logistic model to

Re: [R] A Quick and (Very) Dirty Intro to Stats in R

Dear Jarrett, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jarrett Byrnes Sent: Tuesday, November 08, 2005 6:41 PM To: R-help@stat.math.ethz.ch Subject: [R] A Quick and (Very) Dirty Intro to Stats in R . . . Most importantly, there are

Re: [R] OLS variables

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: Prof Brian Ripley [mailto:[EMAIL PROTECTED] Sent: Monday, November 07

Re: [R] OLS variables

Dear Brian, I like the idea of providing support for raw polynomials in poly() and polym(), if only for pedagogical reasons. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

Re: [R] OLS variables

, however, if not quite 2^20. The introductory manual that comes with R has information on model formulas in Section 11. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

Re: [R] cox models

level. To see the contrasts, enter the command contrasts(igr1$class). A bit more information on contrasts is in Section 11.1.1 of the introductory manual that comes with R. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton

Re: [R] (no subject)

Dear Erez, How about C - A + B ? Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL

Re: [R] function effect and standard error

student Biology Departement Université de Sherbrooke 2500 boul. de l'Université Sherbrooke, Québec J1K 2R1 CANADA Tél: 1-819-821-8000 poste 2059 Fax: 1-819-821-8049 [EMAIL PROTECTED] [[alternative HTML version deleted]] John Fox Department

Re: [R] GLM

)) sapply(summaries, function(x) x$AIC) I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message

Re: [R] Problem with llines in lattice

Of Deepayan Sarkar Sent: Saturday, October 29, 2005 6:01 PM To: John Fox Cc: r-help@stat.math.ethz.ch Subject: Re: [R] Problem with llines in lattice On 10/29/05, John Fox [EMAIL PROTECTED] wrote: Dear r-help list members, I'm experiencing problems getting type=b (or o or c) to work

[R] Problem with llines in lattice

() and lplot.xy(), which llines() calls, and don't see the source of the problem. I'm using R 2.2.0 under Windows XP. I'm pretty sure that this used to work, but I got the same problem in R 2.1.1 when I tried it there. Any help would be appreciated. Thanks, John John Fox

Re: [R] lm type of sums of squares

__ 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 John Fox Department of Sociology McMaster University

Re: [R] Help: partial.cor significance test

would want to do this, however, is another matter. What would one do with a matrix of 2-sided p-values? Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] making an inicator variable

Section 11 of the Introduction to R manual that comes with R). It's hard to give really good advice without knowing more about the context. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525

Re: [R] String manipulation

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Luis Ridao Cruz Sent: Thursday

Re: [R] spliting an integer

Dear Sundar and Dimitri, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sundar Dorai-Raj Sent: Thursday, October 20, 2005 3:50 PM To: Dimitri Szerman Cc: R-Help Subject: Re: [R] spliting an integer Dimitri Szerman wrote: Hi there,

Re: [R] how to import such data to R?

mail addres is [EMAIL PROTECTED] Blog:http://sociology.yculblog.com John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ R-help@stat.math.ethz.ch mailing list

Re: [R] asking the user for data

, as would as.numeric(readline(paste(Please enter the z value for , x, : , sep=))). I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] SEM with dichotomous indicators

John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ 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

Re: [R] zip package

tells you. (3) You don't seem to be using the destdir argument correctly; you can omit it. Why not avoid all this and just use the R for Windows menus: Packages - Install package(s) from local zip files? I hope this helps, John John Fox Department of Sociology

Re: [R] R/S-Plus equivalent to Genstat predict: predictions over averages of covariates

Dear Peter, See the effects package, described in http://www.jstatsoft.org/counter.php?id=75url=v08/i15/effect-displays-revi sed.pdf. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525

Re: [R] data.frame error using sem package

the sem examples for details and the paper at http://socserv.socsci.mcmaster.ca/jfox/sem-package.pdf. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Rcmdr and scatter3d

by groups. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: ecatchpole [mailto:[EMAIL PROTECTED

Re: [R] testing non-linear component in mgcv:gam

Dear Denis, Take a closer look at the anova table: The models provide identical fits to the data. The differences in degrees of freedom and deviance between the two models are essentially zero, 5.5554e-10 and 2.353e-11 respectively. I hope this helps, John John

Re: [R] transparent surface in rgl

, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf

Re: [R] testing non-linear component in mgcv:gam

be dependent upon the scale of the response. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL

Re: [R] testing non-linear component in mgcv:gam

to the package author. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: Denis Chabot [mailto:[EMAIL

Re: [R] Rcmdr and scatter3d

)) } John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED

Re: [R] plot question when type = b and pch is a vector

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf

Re: [R] generalized linear model for multinomial data?

Dear Hongyu, See multinom() in the nnet package, associated with Venables and Ripley's Modern Applied Statistics with S. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Are least-squares means useful or appropriate?

, that is for terms merged with their lower-order relatives. These, for example, are unaffected by contrast coding. How to define reasonable quasi-variances in this context has been puzzling me for a while. Regards, John John Fox Department of Sociology McMaster University

Re: [R] text editor TinR?

Dear Mihai, It's Tinn-R (with two n's), at http://www.sciviews.org/Tinn-R/. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Rcommander and simple chisquare

will be calculated. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

Re: [R] Rcommander and simple chisquare

will be calculated. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

Re: [R] Rcommander and simple chisquare

directly are the hypothesized probabilities. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message

Re: [R] Collineariy Diagnostics

Dear Sundar and Antoine, In addition, the vif function in the car package will calculate generalized variance inflation factors. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

Re: [R] is library loaded

Dear Omar, The following function tests whether a package is in the search path (with the package name given in quotes): packageLoaded - function(name) 0 != length(grep(paste(^package:, name, $, sep=), search())) I hope this helps, John John Fox Department

Re: [R] is library loaded

() both loaded a package (with or without a namespace) and attached it to the search path, but I must admit that I'm easily confused about these distinctions. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525

[R] [R-pkgs] Internationalized version of the Rcmdr package

they are completed. If you're interested in translating the Rcmdr into another language, please contact me. As before, bug reports, suggestions, and other feedback are appreciated. John John Fox Department of Sociology McMaster University Hamilton, Ontario

Re: [R] Plotting an ellipse in 3D

) } } if (model.summary) return(summaries) else return(invisible(NULL)) } John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original

Re: [R] tcltk, X11 protocol error: Bug?

the warnings. The way I handle the problem in the Rcmdr package is simply to intercept the warnings. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Rcmdr extensions

by using the function doItAndPrint(). I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message

Re: [R] Matrix oriented computing

) system.time(for (i in 1:length(df)) mat[i,] - qchisq(x, df[i])) [1] 0.09 0.00 0.10 NA NA Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Manually Calculating Odds from POLR Model

is distributed with R. More detailed explanations are in texts such as Venables and Ripley, Modern Applied Statistics With S, and my own, An R and S-PLUS Companion to Applied Regression. I hope this helps, John John Fox Department of Sociology McMaster University

Re: [R] path analysis

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Manel Salamero Sent

Re: [R] path analysis

Dear Manuel and list, I see that I wrote point-biserial when I meant biserial. Sorry, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] path analysis

Dear Manel, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of SALAMERO BARO, MANUEL Sent: Saturday, August 13, 2005 2:02 PM To: r-help@stat.math.ethz.ch Subject: [R] path analysis Someone knows if it is possible to perform a path analysis with

Re: [R] Issues with tcltk for Tiger Mac OSX

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bernard Leong

Re: [R] Manually Calculating Odds from POLR Model

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tate

Re: [R] tcltk programming guide

on the tcltk package. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL

Re: [R] partial SS for anova

Dear Natalia, See the Anova() function in the car package. Also see the warning in ?Anova about Type III sums of squares. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

Re: [R] Unexpected behavior in recode{car}

- recode(nn, 2='Num2'; 4='Num4', as.factor=TRUE) Thanks for bringing this bug to my attention. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] logistic regression: categorical value, and multinomial

Dear Ed, See ?glm for fitting binomial logit models, and ?multinom (in the nnet package) for multinomial logit models. Neither function will handle a character (text) variable as the response, but you could easily convert the variable to a factor. John John Fox

Re: [R] setting elements to NA across an array

Dear Dr Carbon, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dr Carbon Sent: Wednesday, July 27, 2005 12:19 PM To: [EMAIL PROTECTED] Subject: [R] setting elements to NA across an array Please excuse what is obviously a trivial matter... I

Re: [R] setting elements to NA across an array

), function(x) any(is.na(x))), dim(foo))] - NA Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message

Re: [R] grep help needed

Dear Denis, I don't believe that anyone fielded your question -- my apologies if I missed a response. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Denis Chabot Sent: Monday, July 25, 2005 9:46 PM To: R list Subject: [R] grep help needed Hi,

Re: [R] sciviews installation

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Philippe

Re: [R] 3D ellipsoid confidence region

__ 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 John Fox Department of Sociology McMaster University

Re: [R] How to save changed options in Rcmdr

). For more information on R initialization, see ?Startup. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original

Re: [R] Another question about Rcmdr

has used the Rcmdr under R 2.1.1 on a Linux system and can report success or failure. I'm sorry that I can't be of more help, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca

Re: [R] test for equality of two data sets withmultidimensional variables

Dear Petr and Shengzhe, Also see ?manova. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL

Re: [R] Factanal loadings as large as 1.2 with promax -- how unusual?

suggest that you could get by with fewer factors. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message

Re: [R] Problem with multinom ?

hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

Re: [R] Problem with multinom ?

Dear Marc, -Original Message- From: Marc Girondot [mailto:[EMAIL PROTECTED] Sent: Saturday, June 11, 2005 2:16 PM To: John Fox Cc: [EMAIL PROTECTED] Subject: RE: [R] Problem with multinom ? Dear Marc, I get the same results -- same coefficients, standard errors, and fitted

Re: [R] problem with polr ?

Dear Marc, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marc Girondot Sent: Friday, June 10, 2005 3:44 PM To: r-help@stat.math.ethz.ch Subject: [R] problem with polr ? I want to fit a multinomial model with logit link. For example let this

RE: [R] Forecasting with macroeconomic structural equations models?

of the model. To do so, you'll need forecasts for the exogenous variables in the system. I hope that this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

RE: [R] chisq.test and anova problems

Dear Richard, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Richard Mendes Sent: Monday, June 06, 2005 8:44 AM To: r-help@stat.math.ethz.ch Subject: [R] chisq.test and anova problems we just started to use R and having some problems that no

RE: [R] R GUI for Linux?

Dear Charles, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of White, Charles E WRAIR-Wash DC Sent: Monday, May 30, 2005 10:52 AM To: r-help@stat.math.ethz.ch Cc: [EMAIL PROTECTED] Subject: [R] R GUI for Linux? . . . Rcmdr: There are all

RE: [R] Errors in Variables

. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED

RE: [R] text-function: adding text in an x,y-plot

going on. Instead you could specify labels=lab$V1 in the text() command. But why put the row names in a data frame in the first place; why not simply use labels=rownames(out.pca)? I hope this helps, John John Fox Department of Sociology McMaster University Hamilton

RE: [R] Errors in Variables

Dear Spencer, -Original Message- From: Spencer Graves [mailto:[EMAIL PROTECTED] Sent: Sunday, May 29, 2005 4:13 PM To: John Fox Cc: r-help@stat.math.ethz.ch; 'Jacob van Wyk'; 'Eric-Olivier Le Bigot' Subject: Re: [R] Errors in Variables Hi, John: Thanks

RE: [R] precision problem

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Omar Lakkis Sent

RE: [R] precision problem

, but of course without abs(). Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED

RE: [R] colors and palettes and things...

directory. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED

RE: [R] installing R and Rcmdr onMacOS 10.3.9

on a Mac is willing to prepare notes about how to get it installed and working, I'd gladly post them on my web site. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

RE: [R] R annoyances

Dear Uwe, I've often wondered why T and F aren't reserved words in R as TRUE and FALSE are. Perhaps there's some use of T and F as variables, but that seems ill-advised. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada

RE: [R] R annoyances

for TRUE and FALSE, then why provide standard global variables by these names? On the other hand, if providing T and F is considered desirable (e.g., for S-PLUS compatibility), then why not make them reserved names? Regards, John John Fox Department of Sociology

RE: [R] Difference between difference of means

Dear Peter, This looks like a two-way ANOVA, with product as one factor and condition as the other. The test that you describe is for the interaction between product and condition. I hope this helps, John John Fox Department of Sociology McMaster University

RE: [R] Anova - adjusted or sequential sums of squares?

of squares, be careful to use a contrast type (such as contr.sum) that produces an orthogonal row basis for the terms in the model. I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

RE: [R] Pearson corelation and p-value for matrix

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf

[R] Discrepancy between gam from gam package and gam in S-PLUS

(income, span = 0.6) 1 3 7.018995 0.0002517358 - snip I suppose that one of these must be in error. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

RE: [R] Pearson corelation and p-value for matrix

Dear Andy, Very nice! (My point was that if this is a one-time thing, for Dren to puzzle over it is probably more time-consuming than simply doing it inefficiently.) Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S

RE: [R] Pearson corelation and p-value for matrix

, for example. Thanks, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: Liaw, Andy [mailto:[EMAIL PROTECTED

RE: [R] Pearson corelation and p-value for matrix

Dear Mark, -Original Message- From: Marc Schwartz [mailto:[EMAIL PROTECTED] Sent: Friday, April 15, 2005 9:41 PM To: John Fox Cc: 'R-Help'; 'Dren Scott' Subject: RE: [R] Pearson corelation and p-value for matrix John, Interesting test. Thanks for pointing that out. You

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