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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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

[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] 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

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] 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] 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] 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] 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] 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] 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] 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] Test for equality of coefficients in multivariate multipleregression

at least one of Ulrich's messages referring to alternative approaches appeared there. I hope that's OK.) Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] equality constraint

Dear Ana Maria, How about replacing the last of the four parameters with the negative of the sum of the others? I hope this helps, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

[R] [R-pkgs] Version 0.9-4 of sem to CRAN

Dear Kurt, I've uploaded a new version (0.9-4) of the sem package to CRAN. I hope that everything is well with you. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Syntax of Levene's test

medium.high high.lowlow.low [6] medium.low levels(fcategory) [1] high lowmedium levels(partner.status) [1] high low I'll add a couple of examples to the help page. I hope this helps, John John Fox Department of Sociology McMaster University

Re: [R] Syntax of Levene's test

Dear Paul, Levene's test tests the null hypothesis that the variance are equal, so a small p-value suggests that they are not. Looking at your output, it seems odd that you have as many as 96 groups. John John Fox Department of Sociology McMaster University

Re: [R] Doubt about Student t distribution simulation

you'd get a better picture of what's going on in the tails. 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] Doubt about Student t distribution simulation

Dear Sundar, Try qq.plot(t, dist=t, df=n-1) from the car package, which include a 95-percent point-wise confidence envelope that helps you judge how extreme the outliers are relative to expectations. Regards, John John Fox Department of Sociology McMaster

Re: [R] polychoric correlation error

- cut(test.c, c(-Inf, -1, 1, 2, 3, Inf)) 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] Specifying Path Model in SEM for CFA

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 Rick Bilonick Sent: Tuesday

Re: [R] Specifying Path Model in SEM for CFA

John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message- From: Rick Bilonick [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 16

Re: [R] tkinser

Dear Julie, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of julie7.josse Sent: Thursday, August 17, 2006 4:01 AM To: r-help Subject: [R] tkinser Importance: High Dear list, I 'd like to know if it is possible to delete my text window

Re: [R] Specifying Path Model in SEM for CFA

Dear Rick, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rick Bilonick Sent: Thursday, August 17, 2006 7:07 AM To: John Fox Cc: 'R Help'; 'Rick Bilonick' Subject: Re: [R] Specifying Path Model in SEM for CFA . . . I'm trying to build

Re: [R] Total (un)standardized effects in SEM?

by standardized.eoefficients(). This function doesn't return the standardized A matrix in a usable form, but could be made to do so. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

Re: [R] polychor error

of 'lower' is larger than 'upper' Thanks, Janet John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox __ R-help@stat.math.ethz.ch mailing

Re: [R] Type II and III sum of square in Anova (R, car package)

, however. 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] Total (un)standardized effects in SEM?

) } 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 Rense

Re: [R] Type II and III sum of square in Anova (R, car package)

@stat.math.ethz.ch Cc: John Fox; Prof Brian Ripley; Mark Lyman Subject: Re: [R] Type II and III sum of square in Anova (R, car package) Hello, First of all, I would like to thank everybody who answered my question. Every post has added something to my knowledge of the topic. I now know why Type

[R] [R-pkgs] Version 1.2-0 of the Rcmdr package

, comments, and suggestions are welcome. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox ___ R-packages mailing list R-packages

Re: [R] Question on Chi-square of null model in sem package

) to CRAN; the source package is there now and I'm sure that the compiled Windows package will appear in due course. Thank you once more for bringing the problem to my attention. John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada

Re: [R] problems with R and tckl/tk on Mac OS X

, 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] scatter3d() model.summary coefficients?

be better if ?scatter3d mentioned this; I've made that change in the development version of the package. BTW, a nice thing about R is that the source code is there, so you can look to see what a function does. I hope this helps, John John Fox Department of Sociology

Re: [R] RODBC ERROR on Rcmdr install

; in the latest version of the Rcmdr, you won't even see this menu item in non-Windows systems. You should, I believe, be able to install and use the Rcmdr package on your system without RODBC. I hope this helps, John John Fox Department of Sociology McMaster

Re: [R] RODBC ERROR on Rcmdr install

is present, or would I have to rely, e.g., on a user-set option? I'm moving this message to the r-devel list. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Re: [R] Linear model with hidden variables

-- are they correlated?) 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] glm and plot.effects

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 Michael Kubovy Sent

Re: [R] Differences in estimates calculated in R and SPSS

about how R handles factors in linear models). 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] regression analyses using a vector of means anda variance-covariance matrix

. 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] [mailto

RE: [R] ANCOVA

Dear Matt, The sequential sums of squares produced by anova() test for g ignoring x (and the interaction), x after g (and ignoring the interaction), and the x:g interaction after g and x. The second and third test are generally sensible, but the first doesn't adjust for x, which is probably not

Re: [R] Rcmdr X11 protocol error message

Dear Peter, On 30 Aug 2004 17:41:10 +0200 Peter Dalgaard [EMAIL PROTECTED] wrote: John Fox [EMAIL PROTECTED] writes: Dear Peter and Michael, Peter: Thank you for fielding this question. Michael initially contacted me directly, and I suggested that he write to the list since I didn't

RE: [R] initialization error with XEmacs init.el file

Dear Melanie, Are you using forward-slashes (/) or double-back-slashes (\\) to separate directories, as I believe you should, and placing quotes around the path? I hope that this helps, John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of

RE: [R] Rcmdr X11 protocol error message

Dear Michael, A question: Do you observe these problems with tcltk in general or just with the Rcmdr package? Is it possible for you to test a Tcl/Tk program outside of R? Regards, John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Dalgaard

RE: [R] Rcmdr X11 protocol error message

. John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Dalgaard Sent: Tuesday, August 31, 2004 2:37 PM To: Michael Bibo Cc: [EMAIL PROTECTED] Subject: Re: [R] Rcmdr X11 protocol error message Michael Bibo [EMAIL PROTECTED] writes: John

RE: [R] Rcmdr X11 protocol error message

, September 01, 2004 6:21 AM To: John Fox Cc: 'Peter Dalgaard'; [EMAIL PROTECTED]; 'Dirk Eddelbuettel' Subject: Re: [R] Rcmdr X11 protocol error message John Fox wrote: Dear Peter and Michael, I installed Quantian on a spare machine that I have and observed the same warning messages

RE: [R] Rcmdr X11 protocol error message

help until we discover the source of the problems. (I tested on my Quantian system.) Thanks for your help. John -Original Message- From: Michael Bibo [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 01, 2004 6:21 AM To: John Fox Cc: 'Peter Dalgaard'; [EMAIL PROTECTED]; 'Dirk

RE: [R] Rcmdr X11 protocol error message

Dear Michael, -Original Message- From: Michael Bibo [mailto:[EMAIL PROTECTED] Sent: Saturday, September 04, 2004 9:59 AM To: John Fox Cc: 'Peter Dalgaard'; [EMAIL PROTECTED]; 'Dirk Eddelbuettel' Subject: Re: [R] Rcmdr X11 protocol error message . . . I have another reliable

RE: [R] a little question about R

You can use letters[1:4]. (B (BI hope that this helps, (B John (B (B -Original Message- (B From: [EMAIL PROTECTED] (B [mailto:[EMAIL PROTECTED] On Behalf Of ?? (B Sent: Tuesday, September 07, 2004 7:42 PM (B To: [EMAIL PROTECTED] (B Subject: [R] a little question about R (B

RE: [R] R conversion

Dear Mark, See ?factanal for a factor-analysis function, in the standard stats package (though factanal does ML factor analysis and not principal axes). Note that help.search(factor analysis) turns this up. With respect to your last question, it's not possible to know the source of the

RE: [R] Proposal for New R List: Criticism? Comments?

Dear Bert, I believe that you've identified an important issue -- and one that's occasionally been discussed on this list previously -- but I'm not sure that another email list is a good solution. Some method of indexing functions in packages that would allow people to more easily locate them

RE: [R] Proposal for New R List: Criticism? Comments?

, September 10, 2004 5:26 AM To: Jonathan Baron Cc: Adaikalavan Ramasamy; John Fox; R-help; 'Berton Gunter' Subject: Re: [R] Proposal for New R List: Criticism? Comments? On Fri, 10 Sep 2004, Jonathan Baron wrote: On 09/10/04 03:54, Adaikalavan Ramasamy wrote: There is another issue

RE: [R] boxplot() from list

Dear Laura, You don't say what kind of objects are in the list, but suppose that they are matrices; here's a scaled-down example using 3 list elements: M1 - matrix(rnorm(30*4), 48, 4) M2 - matrix(rnorm(30*4), 48, 4) M3 - matrix(rnorm(30*4), 48, 4) L - list(M1=M1, M2=M2, M3=M3) par(mfrow=c(3,

RE: [R] mahalanobis distance

Dear Murli, Try ?mahalanobis, which, by the way, is turned up by help.search(mahalanobis). I hope this helps, John -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Murli Nair Sent: Sunday, September 12, 2004 3:17 PM To: [EMAIL PROTECTED] Subject:

Re: [R] replacing NA's with 0 in a dataframe for specified columns

guide! http://www.R-project.org/posting-guide.html John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch

Re: [R] Splitting vector into individual elements

! http://www.R-project.org/posting-guide.html John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman

RE: [R] How do I insert a newline in my title in a plot?

Dear Christos, This works for me, and has many times in the past. Is it possible that you used a forward-slash (/), rather than a back-slash (\)? Alternatively, perhaps this has something to do with using Greek fonts. I hope this helps, John -Original Message- From: [EMAIL PROTECTED]

RE: [R] Proposal for New R List: Criticism? Comments?

-Original Message- From: Martin Maechler [mailto:[EMAIL PROTECTED] Sent: Friday, September 17, 2004 7:57 AM To: John Fox Cc: 'R-help' Subject: RE: [R] Proposal for New R List: Criticism? Comments? Hi John et al. I'm coming late to this thread (because of vacation), JohnF

Re: [R] Issue with predict() for glm models

-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ [EMAIL PROTECTED

RE: [R] Issue with predict() for glm models

Dear Uwe, Unless I've somehow messed this up, as I mentioned yesterday, what you suggest doesn't seem to work when the predictor is a matrix. Here's a simplified example: X - matrix(rnorm(200), 100, 2) y - (X %*% c(1,2) + rnorm(100)) 0 dat - data.frame(y=y, X=X) mod - glm(y ~ X,

RE: [R] Issue with predict() for glm models

Dear Uwe, -Original Message- From: Uwe Ligges [mailto:[EMAIL PROTECTED] Sent: Thursday, September 23, 2004 8:06 AM To: John Fox Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: [R] Issue with predict() for glm models John Fox wrote: Dear Uwe, Unless I've somehow

RE: [R] Issue with predict() for glm models

Dear Uwe, -Original Message- From: Uwe Ligges [mailto:[EMAIL PROTECTED] Sent: Thursday, September 23, 2004 11:37 AM To: John Fox Cc: [EMAIL PROTECTED] Subject: Re: [R] Issue with predict() for glm models . . . John, note that I used glm(y ~ .) (the dot!), because

[R] RE: using tcltk in R under ESS/XEmacs on Windows

)) } where the default value for the `dir' argument is to run the tcltk directory chooser and get the directory name chosen. (Thanks to Prof. John Fox for the tcltk part!!) While this function works fine under Rgui on Windows, it doesn't work when running R within ESS (5.2.3) and XEmacs

[R] RE: using tcltk in R under ESS/XEmacs on Windows

that kind of tcltk command that I've had trouble with in ESS/XEmacs under Windows. Regards, John -Original Message- From: Liaw, Andy [mailto:[EMAIL PROTECTED] Sent: Friday, September 24, 2004 3:23 PM To: 'John Fox' Subject: RE: using tcltk in R under ESS/XEmacs on Windows Hi John

Re: [R] Diagnosing trouble with R-2.0, Fedora Core 2, and Rcmdf

! http://www.R-project.org/posting-guide.html John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman

RE: [R] Diagnosing trouble with R-2.0, Fedora Core 2, and Rcmdf

Dear Paul, I've now had a chance to check into these problems further: -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Johnson Sent: Monday, October 11, 2004 1:09 PM To: r help Subject: [R] Diagnosing trouble with R-2.0, Fedora Core 2, and

RE: [R] Seeking advice on introducing R

Dear Arin, I have a variety of materials at http://socserv.socsci.mcmaster.ca/jfox/Courses/S-course/index.html that may be helpful. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http

RE: [R] Testing for normality of residuals in a regression 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 Federico

RE: [R] one more Rcmdr problem

away. 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] Testing for normality of residuals in a regression model

). The general idea is to transform the LS residuals into an uncorrelated, equal-variance set. Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

RE: [R] Testing for normality of residuals in a regression model

quite the same as errors. 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] Testing for normality of residuals in a regression model

their validity well when the errors are non-normal, the efficiency of the LS estimates can (depending upon the nature of the non-normality) be seriously compromised, not only absolutely but in relation to alternatives (e.g., robust regression). Regards, John John Fox

RE: [R] one more Rcmdr problem

at the moment to investigate further, but I suspect a problem between tcltk and Rgui. I'm copying this response to the r-devel list, since that might be a better place to pursue the problem. Sorry for the trouble. John John Fox Department of Sociology McMaster

Re: [R] multinom object :way of plotting??

John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R

RE: [R] polr (MASS) and lrm (Design) differences in tests of statistical signifcance

Dear Paul, I tried polr() and lrm() on a different problem and (except for the difference in signs for the cut-points/intercepts) got identical results for both coefficients and standard errors. There might be something ill-conditioned about your problem that produces the discrepancy -- I

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