similar to: Difficulty understanding sem errors / failed confirmatory factor analysis

Hello all, I'm trying to replicate a confirmatory factor analysis done in Amos. The idea is to compare a one-factor and a two-factor model. I get the following warning message when I run either model: "Could not compute QR decomposition of Hessian. Optimization probably did not converge." I have no idea what to do here. I believe posters reported the same problem. It seems

With some help from those with expertise on this list, I managed to produce a plot using trellis that looked like I wanted it to look. Now, I need to take the same plot and make the lines on it color, but I want to specify the color for the lines myself. I've managed to make the key use the colors I want. I've managed to make the symbols of the actual plot use the colors I want. But I

I have a puzzle.... When I include an interaction in the model, many predicted probabilities are above 1. Is that a problem with my model? I thought the predicted prob can't be bigger than 1... Any help would be really appreciated! Thanks! K. reg1<-glm(pyea~male+edu+married+inc+relig+factor(time)+ factor(time)*male, data=mydata, family=binomial(link="logit"))

Does someone have confirmatory factor analysis program in R,which includes factor loading and some tests?thank you! -- View this message in context: http://r.789695.n4.nabble.com/confirmatory-factor-analysis-program-in-R-tp3386133p3386133.html Sent from the R help mailing list archive at Nabble.com.

In R software,does it have packages about confirmatory factor analysis in R software? 3Q -- View this message in context: http://r.789695.n4.nabble.com/confirmatory-factor-analysis-in-R-tp3347618p3347618.html Sent from the R help mailing list archive at Nabble.com.

Hi: I am doing a confirmatory factor analysis now. In the analysis, I have null hypothesis test which specify some special structure for the loading matrix. And the alternative is there is no such special structure. Then the log likelihood ratio test can be used. The problem I have is my data comes from a questionnaire and all the variables are discrete from 1 to 7, which makes the normality

Hi, I'm trying to perform a hierachical, second order CFA. That's the thing that I need to leave AMOS. I found some sim.hierarchical and omega stuff, but nothing clear enough. Can anyone help me? I just need a simple and clear manual. Best, Pablo. [[alternative HTML version deleted]]

Hi Has anyone used R to conduct confirmatory factor analysis? This email pertains to use of SEM. For context consider an example: the basic idea is that there are a bunch of observables variables (say study habbits, amount of time reading in the bus, doing homework, helping other do homework, doing follow-up on errors etc.) and one believes that all these variables maybe measured by two or

Hi, I am doing a hierarchical CFA using the sem package. I have 20 items, and I have 2 factors (F3 and F4), and also F1 and F2 are nested within F3. Here is the code that I have, but it is giving me an error message "Warning message: In eval(expr, envir, enclos) : Negative parameter variances. Model may be underidentified." and a further error "Error in summary.objectiveML(cfa,

Zachary, Thanks for the help on IRC earlier. I've got code that can capture a stack trace and then discover for each address, its module, function, source index, line, and column. I still have a couple of loose ends though. Do you know what's going on here? 1. There appears to be 8 bytes before every LineFragmentHeader. Here's some of my own debug output, which matches

For the first and third questions, the easiest thing to do would be run llvm-pdbutil under a debugger and step through the code. Code that looks simple and innocuous can often have a lot of stuff hidden behind it. For example you could step through that loop that iterates the debug subsections and look at the value of Reader.getOffset() every time, and see if it matches with your own code

ok, I can't figure it out... I'd like to play some games with sound, but to make that work, I need to set the acceleration to emulation. Since that option is gone in the newer wine versions, I need some help to set this up in the wine registry. could someone help me please?

Hi, I'm having difficulty importing my textfile that looks something like this: #begin text file Timepoint 1 ObjectNumber Volume SurfaceArea 1 5.3 9.7 2 4.9 8.3 3 5.0 9.1 4 3.5 7.8 Timepoint 2 ObjectNumber Volume SurfaceArea 1 5.1

Hi Jeremy, I'm afraid this is indeed caused by the talloc tidyup as one can perfectly reproduce it wih the following patch for smbtorture (call bin/smbtorture ncacn_np:lo local.file.file_lines_parse). I guess we need to set up some warning signs around file_lines_parse() expressing that it takes talloced content and that one should not free the separated lines array separately. Cheers,

Still trying to upgrade to 1.6.0.9 for 1.4. It worked - it worked all day yesterday, but this morning: -- Executing [646xxxyyyy at longdistance:1] Answer("SIP/172-08276a60", "") in new stack .......... -- Executing [646xxxyyy at longdistance:6] Dial("SIP/172-08276a60", ""DAHDI/g2"/1646xxxyyyy") in new stack May 27 09:56:57]

Don''t get me wrong, JavaScript/Ajax helpers in Rails are a huge timesaver and they have helped me to finally overcome my irrational aversion to js libraries like prototype and such. However, all this goodness seems to come at quiet a price. The resulting code is littered with inline JS, including ubiquitous script tags and onload attributes etc.. It seems that just when i found

On Wed, Mar 10, 1999 at 03:14:08PM +0000, Simon Bond wrote: > Dear all, > > I'm using R 63.2 on windows NT, when I use > > > lines(x,y, lty=2) > > it produces a dashed line between the first pair of points and then reverts > back to a solid line. It produces different colours perfectly ok, but it's > not really a solution when the plot needs to be printed

Hi R-help, I am using the sem package to run confirmatory factor analysis (cfa) on some questionnaire data collected from 307 participants. I have been running R-2.15.3 in Windows in conjunction with R studio. The model I am using was developed from exploratory factor analysis of a separate dataset (n=439); it includes 18 items that load onto 3 factors. I have used the sem package documentation

To whom it may concern, I get the following message when I run my function: Warning message: multi-argument returns are deprecated in: return(call.fn, repl, time, from, to, last.year, occup.m, ant.occ.m, > version platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 1 minor 8.0

Hey all!! Sorry about the crosspost but this invoves CUPS and Samba issues. [Samba 2.2.8 / CUPS 1.1.8 / Redhat 7.2 std] I have encountered a small problem (which is due to my own slipup more than anything else). I have "Windows 2000" versions of the Adobe postscript drivers installed on many of my 2000 machines. Now I am wanting to use the CUPS drivers which are "Windows 2000 or