Displaying 20 results from an estimated 300 matches similar to: "sem vs. LISREL: sem fails"
2007 Apr 11
1
creating a path diagram in sem
Hello,
I finally run my measurement model in sem - successfully. Now, I am trying to print out the path diagram that is based on the results - but for some reason it's not working. Below is my script - but the problem is probably in my very last line:
# ANALYSIS OF ANXIETY, DEPRESSION, AND FEAR - LISREL P.31
library(sem)
# Creating the ANXIETY, DEPRESSION, AND FEAR intercorrelation matrix
2006 Mar 09
1
import from LISREL output of parameter estimates
I am using R and LISREL for simulation studies. R generates the data
that is analyzed with LISREL.
In LISREL I use "PV" in the LISREL output statement to request estimated
variances. LISREL writes these in a file that looks like this:
1 0 0
0.100331D+01 0.144845D+01 0.141009D+01 0.214423D+01 0.214129D+01
0.194464D+01
0.191531D+01 0.198328D+01 0.100683D+00-0.236392D-01
2006 Aug 22
1
Total (un)standardized effects in SEM?
Hi there,
as a student sociology, I'm starting to learn about SEM. The course I
follow is based on LISREL, but I want to use the SEM-package on R
parallel to it.
Using LISREL, I found it to be very usable to be able to see the
total direct and total indirect effects (standardized and
unstandardized) in the output. Can I create these effects using R? I
know how to calculate them
2009 Sep 08
2
Very basic question regarding plot.Design...
Hello ALL!
I have a problem to plot factor (lets say gender) as a line, or at least
both line and point, from ols model:
ols1 <- ols(Y ~ gender, data=dat, x=T, y=T)
plot(ols1, gender=NA, xlab="gender", ylab="Y",
ylim=c(5,30), conf.int=FALSE)
If I convert gender into discrete numeric predictor, and use
forceLines=TRUE, plot is not nice and true, since it shows values
2011 May 11
3
Vermunt's LEM in R
I don't know of any R package that can match all the functionality of LEM
eg fitting equality constraints to model parameters a la LISREL.
WRT dumping tables, I would have thought that as.data.frame.table does
pretty much what you want, [not tested]
newtab <- as.data.frame(table(a,b,c))
cat("dim\n")
for(i in seq(1, ncol(newtab)-1) {
cat(nlevels(newtab[,1]," ")
}
2008 Mar 14
2
problems creating data frames
I am having two problems creating data frames that I have solutions, but
they really seem like kludges and I assume I just don't understand the
proper R way of doing things.
The first situation is I have an set of uneven data vectors. When I try to
use them to create a data frame I would like the bottoms of them padded with
NAs, without explicitly specifying that. When I do:
anxiety.data =
2011 May 31
2
Winetricks wininet
workaround can't be used in wine 1.3.21
winetricks wininet
wine iexplore
fixme:urlmon:create_object Could not find object for MIME L"application/x-gzip-compressed"
2003 Nov 22
3
summary.manova and rank deficiency
Hi all,
I have received the following error from summary.manova:
Error in summary.manova(manova.test, test = "Pillai") :
residuals have rank 36 < 64
The data is simulated data for 64 variables. The design is a 2*2 factorial with 10 replicates per treatment. Looking at the code for summary.manova, the error involves a problem with qr(). Does anyone have a suggestion as to how to
2020 Jun 19
3
Inclusive language in LLVM: can we rename `master` branch?
On 2020-06-19, Justin Hibbits via llvm-dev wrote:
>On Fri, 19 Jun 2020 17:38:02 +0100
>Renato Golin <rengolin at gmail.com> wrote:
>
>> On Fri, 19 Jun 2020 at 16:43, Robinson, Paul via llvm-dev
>> <llvm-dev at lists.llvm.org> wrote:
>> > If anyone's keeping track of the voting:
>> > +1 for "dev" (contrasts with "release")
2008 Oct 08
1
NA's in multiple choice summary table in Hmisc
Hi,
I have a set of 30 binary variables measuring side effects after drug
treatment. Since each subject can have multiple side effects, I want to
display these side effects in a multiple choice table. I'm using the summary
and mChoice functions of the Hmisc package, because it produces nicely
formatted latex tables. My problem is, that table includes a category for
people who have at
2020 Jun 19
2
Inclusive language in LLVM: can we rename `master` branch?
On Fri, 19 Jun 2020 14:45:37 +0100
Renato Golin via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> On Fri, 19 Jun 2020 at 12:57, Hal Finkel via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> > I like "dev" as an option here. It's short, and in addition,
> > conveys the fact that the development happens in that branch.
> > "main" in
2020 Jun 19
2
Inclusive language in LLVM: can we rename `master` branch?
On Fri, 19 Jun 2020 14:46:19 +0000
"Keane, Erich via llvm-dev" <llvm-dev at lists.llvm.org> wrote:
> If the name of our branch causes anxiety/difficulty for a significant
> portion of our population, it is literally the least we can do to
> choose a word that better respects the last few centuries of world
> history.
Honestly, if the name of a branch causes
2004 Jul 13
5
Help with factanal and missing values
Hi list,
I'm performing a series of confirmatory factor analysis on different
groupings of items from data collected with questionnaires. There are some
missing values.
For those sets with no missing values I call
factanal(datamatrix,factors=n)
where datamatrix is a table of all observations for the items under
investigation.
This call fails when there are missing values.
help(factanal)
2009 Jan 06
1
R SEM package
Does anyone know if the sem package in R can implement a stacked model
comparison, for example as in LISREL or AMOS?
Thanks,
Anthony
--
Anthony Steven Dick, Ph.D.
Post-Doctoral Fellow
Human Neuroscience Laboratory
Department of Neurology
The University of Chicago
5841 S. Maryland Ave. MC-2030
Chicago, IL 60637
Phone: (773)-834-7770
Email: adick at uchicago.edu
Web:
2003 Jul 03
1
beginner gls (nlme) question
Hi all,
I am trying to get a handle on gls (package nlme). I have a toy problem: 3 fixed factors (A, B, C), two levels each, 5 replicates per treatment. The response variable is continuous, normal. I have a correlation matrix of the form:
> mat
A B C
A 1.00 0.75 0
B 0.75 1.00 0
C 0.00 0.00 1
which is common to all observations.
How do I construct the call to gls? I think I need to
2004 Dec 09
1
Re: Tetrachoric and polychoric correlations, Polycor package
A bit late, but you might like to look at
http://www.qimr.edu.au/davidD/polyr.R
Regarding the original posters queries:
You can analyse polychoric correlations as if they were Pearson
correlations using standard software (eg sem), and this usually doesn't do
too badly, or go to AWLS (Browne) in LISREL etc, or ML analysis
of the full multidimensional contingency table using programs such as
2003 Nov 05
2
Contrast
Could anyone please explain how to set up contrasts between means in R. I want to know if "before I conduct an experiment and believe the mean for 1 and 2 will be different from means 3 and 4, Is this true?" That is what I have to prove or disprove, I thought that contrasts would be the way to go. Thanks for the help.
Igor
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1998 Feb 16
1
R-beta: Various R Questions and Comments
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2007 Jan 26
5
primary bonus of mongrel 1.0.1?
Hello,
I''ve completed the update of all my servers to the new mongrel. No
problems whatsoever to report, well done.
But, I have some colleagues who are wondering what the primary
improvements are to mongrel with this new release.
I read the Change log but it was a bit cryptic for me.
Can anyone provide an executive summary of why 1.0.1 is better than 0.3.xx?
a few main bullet
2009 Dec 26
5
Is SEM package of R suitable for sem analysis
Dears,
I'm a college student and In doing my statistics homework.
I use R with SEM package as my tool for sem analysis,
but my teacher told me AMOS is more suitable for such analysis.
Could someone help tell me whether it is true
that some commercial software is better accepted in academic fields?
Sorry if I should not post such topics here.
--
Best Regards,
Reeyarn T. Lee
Accounting