similar to: Version 0.9-4 of sem to CRAN

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 -------------------------------- -----Original Message----- From: John Fox [mailto:jfox at mcmaster.ca] Sent: Sunday,

Dear list members, In sem, std.coef() will give me standardized coefficients from a sem model. But is there a trick so that path.diagram can use these coefficients rather than unstandardized ones? Thanks Steve Powell From: John Fox <jfox_at_mcmaster.ca> Date: Wed 28 Feb 2007 - 14:37:22 GMT Dear Tim, See ?standardized.coefficients (after loading the sem package). Regards, John John

Dear Roman, I've attached the latex file for the copy-edited version of your manuscript -- correcting English grammar and style, and making the paper conform more closely to the R News style. Can you check this over to confirm that I've not altered the meaning of your text and to approve the copy-edits? Thanks, John -------------------------------- John Fox Department of Sociology

Hi John Thanks a lot for the reply. Could you suggest how I can correct this problem? I tried using a correlation matrix instead of raw moments, but still got the same error. I also fixed parameters v1,v2,v3,a1 at 1; then it gave me the error that the system is exatly singular. To answer the points that you raised: 1. x1-x6 are not causes; they are just indicatiors. Does that change my

Dear R-devel list members, Under the development version of R (2.6.0), I notice that my sem package produces the following warning: checking Rd files ... WARNING Rd files with unknown encoding: residuals.Rd I wonder what the warning means. As far as I can see, residuals.Rd is similar to the other .Rd files in the package. At least for the time being, I won't reproduce residuals.Rd here

Dear R-devel list members, For several years, I've maintained for my private use and for demonstrations a set of functions [e.g., for indexing, with(), summary(), etc.] that employ the RODBC package and a database to provide a "pseudo" data frame. Row "indexes" can be specified as SQL queries. I know that the idea isn't original, and I haven't done anything with

Dear r-devel list members, I've prepared a version of the Rcmdr package that uses the new tools for internationalization and localization in R 2.1.x. For the present, this is the development version of the Rcmdr package (1.1-0), available at <http://socserv.socsci.mcmaster.ca/jfox/Misc/Rcmdr/index.html>. There is currently a French translation provided with the package, courtesy of

Dear list members, I've just uploaded version 1.0-0 of the Rcmdr package to CRAN. For people who haven't seen the package before, the "R Commander" provides a basic-statistics graphical user interface to R, based on the tcltk package. The new version incorporates a number of improvements to the R Commander interface, as documented in the CHANGES file distributed with the

Dear list members, I've just uploaded version 1.0-0 of the Rcmdr package to CRAN. For people who haven't seen the package before, the "R Commander" provides a basic-statistics graphical user interface to R, based on the tcltk package. The new version incorporates a number of improvements to the R Commander interface, as documented in the CHANGES file distributed with the

Dear R users, Version 3.0-0 of the sem package is now on CRAN. From the package NEWS file: o Compiled code for optimization. o Added multi-group models. o Modification indices for equality-constrained parameters. o weights argument added to tsls(). o raw argument added to cfa(). Of these changes, the first two are the most significant, and the first -- the use of compiled code to

Dear r-help members, Can lmer() in the lme4 package fit models that have a specified within-group correlation structure, as provided, for example, by the correlation argument to lme() in the nlme package? Thanks, John -------------------------------- John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox

Dear list members, I think that it's a pity that there's no Windows binary for the rgl package on CRAN. I understand that rgl doesn't compile with the standard Windows tools and that there's a Windows binary on Daniel Adler's web site. But the lack of an rgl binary on CRAN provides presents a potential obstacle to at least some Windows users, such as many students in

Dear r-devel list members, I find that adding --sdi to the Target field in the short-cut for R is ineffective in R 2.3.0 beta for Windows (version/platform details below). Setting MDI = no in the Rconsole file works, however. It's probably a bit late to request this for version 2.3.0, but it would be nice to be able to select either the SDI or MDI in the R Windows installer. Regards, John

Dear list members (esp. Duncan), I've run into the following curious problem with Version 2.2.0 alpha for Windows: Options in the Profile file in R's etc directory don't appear to be set. (I habitually uncomment options(chmhelp=TRUE), to no effect in this case.) As far as I can see, the only thing non-standard about my installation is that I put R 2.2.0 alpha under c:\R rather than

Dear R users, Jarrett Byrnes and I would like to announce version 2.0-0 of the sem package for fitting observed- and latent-variable structural equation models. This is a general reworking of the original sem package (which is still available on R-Forge as package sem1). Some highlights of sem 2.0-0 include: o More convenient and compact model specification, including the default automatic

Dear R users, Jarrett Byrnes and I would like to announce version 2.0-0 of the sem package for fitting observed- and latent-variable structural equation models. This is a general reworking of the original sem package (which is still available on R-Forge as package sem1). Some highlights of sem 2.0-0 include: o More convenient and compact model specification, including the default automatic

Dear list members, I've uploaded a new package, called polycor (version 0.5-0), to CRAN. The package has functions for computing polychoric and polyserial correlations, either by maximum-likelihood (in which case, standard errors are available) or by faster approximations. There's also a function to compute "heterogeneous" correlation matrices composed of product-moment,

Dear list members, I've uploaded a new package, called polycor (version 0.5-0), to CRAN. The package has functions for computing polychoric and polyserial correlations, either by maximum-likelihood (in which case, standard errors are available) or by faster approximations. There's also a function to compute "heterogeneous" correlation matrices composed of product-moment,

Dear r-devel list members, I've experienced the following problem in getting a selection from a Tk list box using tcltk. This is a long-standing problem, but I've finally decided to tackle it. Consider the following: Library(tcltk) top <- tktoplevel() listbox <- tklistbox(top, height="10", width="2", exportselection="FALSE",

Dear list members, I'm encountering the following problem with package dependencies and imports: The Rcmdr package doesn't declare a formal dependency (via depends or suggests in the package DESCRIPTION) on the rgl package because the latter apparently causes problems on some systems. This allows the Rcmdr package to build and check on systems without rgl present; if rgl isn't