[R] Workshop: structural equation modeling in R

2013-10-16 Thread John Fox
, including on how to register, is in the attached poster. Best, John --- John Fox McMaster University Hamilton, Ontario, Canada http://socserv.socsci.mcmaster.ca/jfox/ Fox-sem-poster.pdf Description: Adobe PDF document

Re: [R] leveneTest - output

2013-10-01 Thread John Fox
Dear Hermann, -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Hermann Norpois Sent: Tuesday, October 01, 2013 8:07 AM To: r-help Subject: [R] leveneTest - output Hello, I have a question concerning the output of

Re: [R] DataEllipse versus Ellipse Function in R

2013-09-15 Thread John Fox
/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. John Fox McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca

Re: [R] Failed path analysis using sem package

2013-09-15 Thread John Fox
coefficient standard errors and tests on the fitted model. See ?sem and http://socserv.mcmaster.ca/jfox/Books/Companion/appendix/Appendix-SEMs.pdf . I hope this helps, John --- John Fox McMaster University Hamilton, Ontario, Canada http

Re: [R] melting a data frame

2013-09-08 Thread John Fox
, minimal, self-contained, reproducible code. John Fox McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo

Re: [R] Poly Correlations

2013-09-05 Thread John Fox
. I'd also be pleased to work with someone-on-one on a consulting basis if someone has the time and inclination. Hoping to find an individual who knows SPSS and R. It's unclear to me what SPSS has to do with all this. Best, John John Fox

Re: [R] spacing problem in main title using car package scatterplot

2013-08-29 Thread John Fox
--- John Fox McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Gerard Smits Sent: Thursday, August 29, 2013 5:00 PM To: r-help@r-project.org Subject: [R] spacing problem

Re: [R] Creating a Plot in R Commander

2013-08-23 Thread John Fox
Dear Tom, The Graphs - Scatterplot dialog includes an option for a least-squares line (which is checked by default). Best, John --- John Fox McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r

[R] Rcmdr version 2.0-0 now on CRAN

2013-08-22 Thread John Fox
Munoz-Marquez). As usual, please report bugs or problems to j...@mcmaster.ca. Comments and suggestions are also appreciated. Best, John and Milan --- John Fox McMaster University Hamilton, Ontario, Canada

Re: [R] Structural equation models (SEM) for count data / poisson distribution

2013-08-07 Thread John Fox
Dear Stella, The sem package doesn't make provision for count data. Because the sem() function allows the user to specify an arbitrary objective function, if you know the likelihood for the model that you want to fit, you could in principle write a corresponding objective function, but this

Re: [R] CFA and Factor scores from ordered Likert scale items using SEM and Lavaan packages

2013-08-07 Thread John Fox
-guide.html and provide commented, minimal, self-contained, reproducible code. John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox

Re: [R] replace Na values with the mean of the column which contains them

2013-07-29 Thread John Fox
Dear iza.ch1, I hesitate to say this, because mean imputation is such a bad idea, but it's easy to do what you want with a loop, rather than puzzling over a cleverer way to accomplish the task. Here's an example using the Freedman data set in the car package: colSums(is.na(Freedman))

Re: [R] Error with sem function df = -6

2013-07-23 Thread John Fox
]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. John

Re: [R] 2SLS / TSLS / SEM non-linear

2013-06-29 Thread John Fox
structural equations. Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -- View this message in context: http://r.789695.n4.nabble.com/2SLS-TSLS

Re: [R] Lexical scoping is not what I expect

2013-06-28 Thread John Fox
Dear Duncan and Steve, Since Steve's example raises it, I've never understood why it's legal to change the built-in global constants in R, including T and F. That just seems to me to set a trap for users. Why not treat these as reserved symbols, like TRUE, Inf, etc.? Best, John -Original

Re: [R] Lexical scoping is not what I expect

2013-06-28 Thread John Fox
, 2013 11:07 AM To: John Fox Cc: 'S Ellison'; r-help@r-project.org Subject: Re: [R] Lexical scoping is not what I expect On 28/06/2013 10:54 AM, John Fox wrote: Dear Duncan and Steve, Since Steve's example raises it, I've never understood why it's legal to change the built-in global

Re: [R] Lexical scoping is not what I expect

2013-06-28 Thread John Fox
Dear Brian, -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Prof Brian Ripley Sent: Friday, June 28, 2013 11:16 AM To: r-help@r-project.org Subject: Re: [R] Lexical scoping is not what I expect On 28/06/2013 15:54, John

Re: [R] Levene's test output

2013-06-21 Thread John Fox
99.9%? 0.001033 is the p-value for the null hypothesis of equal variances. But what does the 356 mean? The residual df for the test. Is this test performed correctly? I certainly hope so. John John Fox Sen. William McMaster Prof. of Social

Re: [R] [R-SIG-Mac] problem with the installation of r commander on a mac

2013-06-12 Thread John Fox
help. Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org

Re: [R] [R-SIG-Mac] problem with the installation of r commander on a mac

2013-06-12 Thread John Fox
] Sent: Wednesday, June 12, 2013 11:44 AM To: John Fox Subject: Re: [R] [R-SIG-Mac] problem with the installation of r commander on a mac Dear John, thank you very much for your quick reply - I realize I sent this email to the list without being a member, but I am a very beginner

Re: [R] Rcmdr seit heute nicht mehr ladbar

2013-06-10 Thread John Fox
://socserv.socsci.mcmaster.ca/jfox/Misc/Rcmdr/installation-notes.html. Apparently, R is having difficulty connecting to X11. I'm copying this response to Rob Goedman, who has often been able to help with Rcmdr issues under Mac OS X. Best, John --- John Fox

Re: [R] measuring distances between colours?

2013-06-02 Thread John Fox
10:43 AM To: John Fox Cc: r-help; Michael Friendly; Martin Maechler Subject: Re: [R] measuring distances between colours? Sorry about the bug. How embarrassing. Especially because I've learned over the years to trust my gut feelings when something doesn't feel quite right, and when I

Re: [R] measuring distances between colours?

2013-06-01 Thread John Fox
)) --- snip -- Thanks again to everyone who responded to my original, naïve, question. Best, John -Original Message- From: Michael Friendly [mailto:frien...@yorku.ca] Sent: Friday, May 31, 2013 10:24 AM To: John Fox Cc: r-help@r-project.org; 'Martin Maechler' Subject

Re: [R] measuring distances between colours?

2013-06-01 Thread John Fox
: Saturday, June 01, 2013 11:33 AM To: John Fox Cc: 'r-help'; 'Martin Maechler' Subject: Re: [R] measuring distances between colours? Just a quick note: The following two versions of your function don't give the same results. I'm not sure why, and also not sure why the criterion for 'near

Re: [R] measuring distances between colours?

2013-06-01 Thread John Fox
-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Ken Knoblauch Sent: Saturday, June 01, 2013 12:18 PM To: John Fox Cc: r-help@r-project.org; Michael Friendly; Martin Maechler Subject: Re: [R] measuring distances between colours? Hi John, Out of curiosity

Re: [R] measuring distances between colours?

2013-05-31 Thread John Fox
. Best, John -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Kevin Wright Sent: Friday, May 31, 2013 3:39 PM To: Martin Maechler Cc: r-help; John Fox Subject: Re: [R] measuring distances between colours? Thanks

[R] measuring distances between colours?

2013-05-30 Thread John Fox
it. Any suggestions would be appreciated. John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox

Re: [R] measuring distances between colours?

2013-05-30 Thread John Fox
space are more closely related to perceptual differences in colours than are distances in the RGB space. Best, John On Thu, 30 May 2013 22:30:18 +1000 Jim Lemon j...@bitwrit.com.au wrote: On 05/30/2013 10:13 PM, John Fox wrote: Dear r-helpers, I'm interested in locating the named colour

Re: [R] measuring distances between colours?

2013-05-30 Thread John Fox
Dear Ken, Yes, that's the paper I was trying to remember, along with the associated spaces. I'll probably get a better solution using the colorspace package. Thanks, John On Thu, 30 May 2013 12:36:11 + Ken Knoblauch ken.knobla...@inserm.fr wrote: John Fox jfox at mcmaster.ca writes

Re: [R] measuring distances between colours?

2013-05-30 Thread John Fox
Dear Martin, -Original Message- From: Martin Maechler [mailto:maech...@stat.math.ethz.ch] Sent: Thursday, May 30, 2013 9:18 AM To: John Fox Cc: r-help@r-project.org Subject: Re: [R] measuring distances between colours? Dear John, John Fox j...@mcmaster.ca on Thu, 30 May

Re: [R] measuring distances between colours?

2013-05-30 Thread John Fox
- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Eik Vettorazzi Sent: Thursday, May 30, 2013 9:33 AM To: John Fox Cc: r-help@r-project.org Subject: Re: [R] measuring distances between colours? Hi John, i would propose a one-liner for the hexcode

Re: [R] measuring distances between colours?

2013-05-30 Thread John Fox
...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of John Fox Sent: Thursday, May 30, 2013 8:13 AM To: r-help@r-project.org Subject: [R] measuring distances between colours? Dear r-helpers, I'm interested in locating the named colour that's closest to an arbitrary RGB colour

Re: [R] SEM: multigroup model

2013-05-23 Thread John Fox
data and the complete R script that you used. Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org

Re: [R] Rcmdr Bug?

2013-05-17 Thread John Fox
is to add a row of variable names to the spreadsheet. Best, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Fri, 17 May 2013 07:40:51

Re: [R] Help with dataEllipse function

2013-04-26 Thread John Fox
to do what you want by adding the ellipses one at a time to your plot (see the argument add in ?dataEllipse) or by using the coordinates of the ellipses, returned by dataEllipse(), to a customized graph. I hope that this helps, John John Fox Sen

Re: [R] Trouble Computing Type III SS in a Cox Regression using drop1 and Anova

2013-04-24 Thread John Fox
for it (though it escapes me why you prefer it to the LR test). I hope this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada

Re: [R] Frustration to get help R users group

2013-04-23 Thread John Fox
else. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Tue, 23 Apr 2013 12:44:11 +1200 Champak Ishram

Re: [R] Mancova with R

2013-04-17 Thread John Fox
Dear Remi, Take a look at the Anova() function in the car package. In your case, you could use Anova(lm(as.matrix(Y) ~ x + z)) or, for more detail, summary(Anova(lm(as.matrix(Y) ~ x + z))) I hope this helps, John John Fox Sen. William

Re: [R] Mancova with R

2013-04-17 Thread John Fox
., Candidat Ph.D. en Biologie Université du Québec à Rimouski 300, allée des Ursulines remilesmeri...@yahoo.ca De : John Fox j...@mcmaster.ca À : Rémi Lesmerises remilesmeri...@yahoo.ca Cc : r-help@r-project.org r-help@r-project.org Envoyé le

Re: [R] Path Diagram

2013-04-16 Thread John Fox
Dear Laura, This works for me. Is dot on your system path? Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help

Re: [R] Using R commander within R Studio (Mac)

2013-04-15 Thread John Fox
RStudio, there are some problems, particularly with the RStudio graphics device. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http

Re: [R] Can not load Rcmdr

2013-04-15 Thread John Fox
John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Mon, 15 Apr 2013 22:51:49 +0200 Ludwig Asam asamlu...@gmx.de wrote: Hello, I have the same problem

Re: [R] sem: S is numerically singular: expect problems

2013-04-09 Thread John Fox
singular. The message you quote suggests three reasons, but these aren't exhaustive. Investigating the eigenstructure or SVD of S or the data matrix might help -- e.g., through a principal components analysis. I hope this helps, John --- John Fox Senator

Re: [R] Confirmatory Factor Analysis

2013-04-09 Thread John Fox
Dear Laura, In the current version of the Rcmdr package, output of fit indices beyond the LR test, AIC, and BIC is optional, and is controlled by the fit.indices argument to the summary() method (see ?summary.objectiveML) or by the fit.indices option. Everyone seems to have different preferences

Re: [R] R Commander and FactoMineR

2013-04-02 Thread John Fox
Dear Dániel, One normally sends a bug report to the maintainer of a package, in this case the maintainer of the FactoMineR package, Francois Husson, to whom I'm copying this reply. Best, John John Fox Sen. William McMaster Prof. of Social

Re: [R] lmer effects-type plot?

2013-03-31 Thread John Fox
Dear Nicole, Thanks to Sandy Weisberg, who is a coauthor of the package, the effects package has methods for objects produced by lme() in the nlme package and lmer() and glmer() in the lme4 package, to plot the fixed effects. See ?effect. I hope this helps, John -Original Message-

Re: [R] Trouble embedding functions (e.g., deltaMethod) in other functions

2013-03-22 Thread John Fox
Dear Blaser and Pat, I missed the original posting because deltaMethod appears near the end of the message subject and was truncated by my email reader. The problem is caused by lexical scoping. That is, deltaMethod(), which is in the car namespace, will see objects in the global environment,

Re: [R] Control variables in mediation analysis

2013-03-21 Thread John Fox
hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Thu, 21 Mar 2013 16:49:46 -0400 Ista Zahn istaz...@gmail.com

Re: [R] Bootstrap (bootSem) causes R to crash

2013-03-20 Thread John Fox
--- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of pedroabg Sent

Re: [R] save scores from sem

2013-03-18 Thread John Fox
question. In any event, see the fscore() function in the sem package (?fscore) for computation of factor scores. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton

Re: [R] Confirmatory factor analysis using the sem package. TLI CFI and RMSEA absent from model summary.

2013-03-18 Thread John Fox
Dear Kevin, See ?summary.objectiveML, and in particular the description of the fit.indices argument. By default, the summary() method doesn't print many fit indices, but many are available optionally. I hope this helps, John John Fox Sen

Re: [R] Confirmatory factor analysis using the sem package. TLI CFI and RMSEA absent from model summary.

2013-03-18 Thread John Fox
University of Derby Kedleston Road Derby DE22 1GB k.che...@derby.ac.ukmailto:k.che...@derby.ac.uk 01332592081 http://derby.academia.edu/KevinCheung -Original Message- From: John Fox [mailto:j...@mcmaster.ca] Sent: 18 March 2013 15:55 To: Kevin Cheung Cc: r-help@r-project.org Subject

Re: [R] Same eigenvalues but different eigenvectors using 'prcomp' and 'principal' commands

2013-03-14 Thread John Fox
to the corresponding eigenvalues. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Thu, 14 Mar 2013 01:01:56 -0700 (PDT

[R] ICPSR data archive to release datasets in R format

2013-03-12 Thread John Fox
datasets with the .rda extension. ICPSR has been releasing files in R since the beginning of the year, and currently has nearly 150 datasets available in the format. ICPSR Council member John Fox, a contributor to the R Project for Statistical Computing, and professor of sociology at McMaster

Re: [R] Bootstrap BCa confidence limits with your own resamples

2013-03-12 Thread John Fox
Dear Frank, I'm not sure that it will help, but you might look at the bootSem() function in the sem package, which creates objects that inherit from boot. Here's an artificial example: -- snip -- library(sem) for (x in names(CNES)) CNES[[x]] - as.numeric(CNES[[x]]) model.cnes -

Re: [R] Bootstrap BCa confidence limits with your own resamples

2013-03-12 Thread John Fox
. OTOH, I don't believe that I ever checked that the BCa intervals are correct for objects produced by bootSem() -- I did many years ago check against manual computations for a regression model fit by robust regression, but that's another matter. Best, John Frank John Fox wrote Dear Frank

Re: [R] Cook's distance

2013-03-12 Thread John Fox
(linmod$residuals^2)/98)*(hatvalues(linmod)[1]/( 1-hatvalues(linmod)[1])^2) 1 0.09853436 cooks.distance(linmod)[1] 1 0.09853436 I hope this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department

Re: [R] Confirmatory Factor Analysis

2013-03-10 Thread John Fox
Dear Pablo, The sem() function in the sem package can do second-order CFA. See the Thurstone example in ?sem. You could also use the lavaan or OpenMx packages (the latter not on CRAN). I hope this helps, John -Original Message- From: r-help-boun...@r-project.org

Re: [R] Errors-In-Variables in R

2013-03-03 Thread John Fox
or one of the other SEM packages. I hope this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r

Re: [R] print method like print.anova()

2013-03-02 Thread John Fox
Hi Michael, Take a look at ?printCoefmat. I hope this helps, John On Sat, 02 Mar 2013 12:37:36 -0500 Michael Friendly frien...@yorku.ca wrote: I have a print method for a set of statistical tests, vcdExtra::CMHtest, for which I'd like to have more sensible printing of pvalues, as in

Re: [R] Troubleshooting underidentification issues in structural equation modelling (SEM)

2013-02-15 Thread John Fox
) He who has a why can endure any how. ~ Friedrich Nietzsche On 10 February 2013 00:38, John Fox j...@mcmaster.ca wrote: Dear Ruijie, Your model is underidentified by virtue of two of the factors having only one observed indicator each. No SEM software can magically

Re: [R] Rcmdr, RODBC and XLConnect conflict cause R to crash

2013-02-14 Thread John Fox
John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Thu, 14 Feb 2013 21:43:21 +0100 Jeremy MAZET jeremy.ma...@soredab.org wrote: Dear all, Since I upgraded R to the version

Re: [R] effect() error: non-conformable arguments

2013-02-11 Thread John Fox
in mod.matrix %*% V : non-conformable arguments Thanks! On Fri, Feb 8, 2013 at 8:57 AM, John Fox j...@mcmaster.ca wrote: Dear Elisha, It's impossible to tell from the information that you provide what the source of the problem is. The gold standard for a problem report is commented

Re: [R] Troubleshooting underidentification issues in structural equation modelling (SEM)

2013-02-09 Thread John Fox
. If you haven't already done so, I think that you might back up and look more closely at your data, and perhaps seek some competent local help. I hope that this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department

Re: [R] effect() error: non-conformable arguments

2013-02-08 Thread John Fox
. Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf

Re: [R] The use of R Commander for beginning students and newbies

2013-02-08 Thread John Fox
--- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Dr. Thomas W. MacFarland Sent: Thursday, February

Re: [R] mountain lion install, error message

2013-02-01 Thread John Fox
Dear Claire, This error is due to a bug in the previous version of the Rcmdr package; it is fixed in the current version on CRAN, version 1.9-4. Simply reinstall the Rcmdr package from CRAN and verify that you have the correct version. I hope this helps, John -Original Message- From:

Re: [R] mountain lion install, error message

2013-02-01 Thread John Fox
Dear Jeff, As I just explained to Claire, this error is caused by a bug in an earlier version of the Rcmdr package; the bug affects the Rcmdr on all platforms, not just Mac OS X, and is fixed in the current version 1.9-4 of the Rcmdr on CRAN. Best, John -Original Message- From:

Re: [R] Please, problem using bcPower

2013-01-31 Thread John Fox
transformation parameters 1e+07 * (x - 0.99 * (min(x))) 2.774309 I was slightly surprised that the magnitude of the numbers is an issue. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics

Re: [R] how to suppress the intercept in an lm()-like formula method?

2013-01-29 Thread John Fox
Hi Michael, How about, x - x[, colnames(x) != (Intercept)] I hope this helps, John -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Michael Friendly Sent: Tuesday, January 29, 2013 8:45 AM To: R-help Subject: [R] how to

Re: [R] confidence / prediction ellipse

2013-01-27 Thread John Fox
--- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Giuseppe Amatulli Sent

Re: [R] CFA with lavaan or with SEM

2013-01-23 Thread John Fox
the error message produced by sem(). By the way, I assume that you didn't really call sem in the sem package as sem::sem in a session in which lavann was loaded. I'm not sure what would happen if you did that. Best, John John Fox Sen. William

Re: [R] CFA with lavaan or with SEM

2013-01-23 Thread John Fox
, John -Original Message- From: David Purves [mailto:david.pur...@glasgow.ac.uk] Sent: Wednesday, January 23, 2013 10:23 AM To: John Fox Cc: r-help@R-project.org Subject: RE: [R] CFA with lavaan or with SEM Hi John Thanks for your quick reply. The full warning I got

Re: [R] FactoMineR

2013-01-23 Thread John Fox
...@ktk.pte.hu] Sent: Tuesday, January 22, 2013 8:02 AM To: John Fox Cc: R-help Subject: RE: [R] FactoMineR Dear John, great news, thank you for your kind answer and quick response. I am sure that the author is going to do his best as well. An other good experience why I love R! :) Have

Re: [R] CFA with lavaan or with SEM

2013-01-23 Thread John Fox
Dear Daniel, Oh, I see I forgot to comment on your second specification in my last reply: -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of David Purves Sent: Wednesday, January 23, 2013 10:23 AM To: John Fox Cc: r-help@R

Re: [R] FactoMineR

2013-01-22 Thread John Fox
for the difficulties introduced by these changes. John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Tue, 22 Jan 2013 10:34:28 + Dániel Kehl

Re: [R] sem package, suppress warnings

2013-01-20 Thread John Fox
prints the iteration history and some additional information; it is irrelevant to warnings. I hope this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada

Re: [R] nested, unbalanced anova

2013-01-06 Thread John Fox
-measures designs. The paper doesn't, however, try to clarify the distinctions among type-I, II, and III tests. Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada

Re: [R] Polychor() - why does it take that long?

2012-12-07 Thread John Fox
, so I expect that there's an error in your command, but without a reproducible example, one can only guess at what that error is. My guess: data[c(s1,s2)] isn't a two-way contingency table. I hope this helps, John --- John Fox Senator William

Re: [R] Using multcomp::glht() with Anova object

2012-12-05 Thread John Fox
John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Wed, 5 Dec 2012 11:09:44 -0600 Stephen Politzer-Ahles politzerahl...@gmail.com wrote: Hello everyone

Re: [R] SEM raw moment matrix

2012-11-24 Thread John Fox
after UNIT, is correct. The model runs fine. Thank you, Maya -Original Message- From: John Fox [mailto:j...@mcmaster.ca] Sent: Friday, November 23, 2012 2:39 PM To: Maya Abou Zeid Cc: r-help@r-project.org Subject: Re: [R] SEM raw moment matrix Dear Maya, sem() computes

Re: [R] SEM raw moment matrix

2012-11-23 Thread John Fox
this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Fri, 23 Nov 2012 00:33:51 +0200 Maya Abou Zeid ma...@aub.edu.lb

Re: [R] polycor package

2012-11-16 Thread John Fox
don't mention that), and you should address your question to the author of that package (or use an appropriate title line in your r-help posting). Best, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology

Re: [R] Hypothesis RayosRayos.2 = (Intercept) is not well formed: contains bad coefficient/variable names.

2012-11-05 Thread John Fox
specified tests that a coefficient in the model named RayosRayos.2 is equal to the regression intercept, which is standardly named (Intercept). Is that what you intended? Best, John John Fox Sen. William McMaster Prof. of Social Statistics

Re: [R] structural equations using sem package

2012-11-05 Thread John Fox
and the document at http://socserv.socsci.mcmaster.ca/jfox/Books/Companion/appendix/Appendix-SEMs.pdf. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario

Re: [R] 95% Q-Q Plot error message

2012-11-04 Thread John Fox
unreasonable, and fix it if we find a problem. Best, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org

Re: [R] 95% Q-Q Plot error message

2012-11-04 Thread John Fox
, maybe you can make up a suitable example that you can share and that demonstrates the problem. As I said, we'll do what we can in the absence of a reproducible example. John From:John Fox j...@mcmaster.ca To:Liang Che/US/TLS/PwC@Americas-US Cc:'Sanford

Re: [R] Plot lmer model with Effects package

2012-10-26 Thread John Fox
believe that Effect() would work as you want for either form. Q2: Can I also visualize the random effects? I'm not sure what that would mean. I suppose that you could look at the distribution of the BLUPs. I hope this helps, John John Fox Sen

Re: [R] SEM multigroup modeling

2012-10-24 Thread John Fox
. These are given in a little more detail in http://socserv.socsci.mcmaster.ca/jfox/Books/Companion/appendix/Appendix-SEMs.pdf. Best, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario

Re: [R] Recode function car package erases previous values

2012-10-24 Thread John Fox
the original version of pharm. I'm not sure why you expected this to give you what you want -- it really doesn't make sense. Best, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton

Re: [R] scatterplot with wrong line offset

2012-10-23 Thread John Fox
(such as lines) to the plot. Best, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Tue, 23 Oct 2012 12:00:11 -0700 (PDT) fm3c2007

Re: [R] How Rcmdr or na.exclude blocks TukeyHSD

2012-10-23 Thread John Fox
statistics, such as residuals, to a data set in the presence of missing data. The Rcmdr restores the previous value of this option when it exits. I'm aware that you know all this, and just wanted to provide context. Best, John John Fox Sen. William

Re: [R] car::linearHypothesis Sum of Sqaures Error?

2012-10-09 Thread John Fox
are balanced. I hope this helps, John John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ If they should, maybe we can figure out why mine do

Re: [R] car::linearHypothesis Sum of Sqaures Error?

2012-10-09 Thread John Fox
Dear John, -Original Message- From: John Jay Wiley Jr. [mailto:jwile...@syr.edu] Sent: Tuesday, October 09, 2012 9:17 AM To: John Fox Cc: r-help@r-project.org Subject: RE: [R] car::linearHypothesis Sum of Sqaures Error? John, Thank you for the reply. The data are balanced

Re: [R] car::linearHypothesis Sum of Sqaures Error?

2012-10-09 Thread John Fox
Dear John, -Original Message- From: John Jay Wiley Jr. [mailto:jwile...@syr.edu] Sent: Tuesday, October 09, 2012 3:37 PM To: John Fox Cc: r-help@r-project.org Subject: RE: [R] car::linearHypothesis Sum of Sqaures Error? John, Again, thank you for your reply. Unfortunately

Re: [R] Why do I get different results for type III anova using the drop1 or Anova command?

2012-10-08 Thread John Fox
that this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org

Re: [R] Anova

2012-10-05 Thread John Fox
John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ Please advise, Jean -- View this message in context: http://r.789695.n4.nabble.com/Anova-tp4645130.html Sent from the R help

Re: [R] Dúvida função Anova pacote car - Medidas repetidas

2012-10-05 Thread John Fox
are independent units, and that the design is therefore entirely within replicate. If that's wrong, then the analysis I've suggested is also incorrect. I hope this helps, John --- John Fox Senator McMaster Professor of Social Statistics Department

Re: [R] problem with the installation of r commander on a mac

2012-10-04 Thread John Fox
, John --- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf

Re: [R] Error messages when attempting to calculate polychoric correlation matrices

2012-10-01 Thread John Fox
--- John Fox Senator McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Kevin

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