search for: cfa

...om Sept. 14th. Is something broken? -- *Matt Phelps* *Information Technology Specialist, Systems Administrator* (Computation Facility, Smithsonian Astrophysical Observatory) Center for Astrophysics | Harvard & Smithsonian 60 Garden Street | MS 39 | Cambridge, MA 02138 email: mphelps at cfa.harvard.edu cfa.harvard.edu | Facebook <http://cfa.harvard.edu/facebook> | Twitter <http://cfa.harvard.edu/twitter> | YouTube <http://cfa.harvard.edu/youtube> | Newsletter <http://cfa.harvard.edu/newsletter>

Dear R-List, (I am not sure whether this list is the right place for my question...) I have a dataframe df.cfa df.cfa<-data.frame(x1=c(5,4,1,5,5,NA,4,NA,NA,5),x2=c(2,3,3,3,NA,1,2,1,2,1),x3=c(5,3,4,1,5,5,5,5,5,5),x4=c(5,3,4,5,5,5,5,5,5,5),x5=c(5,4,3,3,4,4,4,5,NA,5),x6=c(3,5,2,1,4,NA,NA,5,3,4),x7=c(5,4,3,4,4,3,4,NA,NA,4),x8=c(5,5,3,4,5,4,5,4,5,5),x9=c(5,1,1,1,NA,3,3,2,2,3),x10=c(5,5,2,3,4,3,1,3,2,5),x11=c...

Dear R users, Version 2.1-1 of the sem package, for structural equation modeling, is now on CRAN. Unlike version 2.0-0, which was a major overhaul of the package, version 2.1-1 just sprinkles some syntactic sugar on it, introducing the specifyEquations() and cfa() functions; specifyEquations() supports model specification in equation (rather than path) format, and cfa() facilitates compact specification of simple confirmatory factor analysis models. For example, from ?sem, the Duncan, Haller, and Portes peer-influences model can now be specified as mode...

Dear R users, Version 2.1-1 of the sem package, for structural equation modeling, is now on CRAN. Unlike version 2.0-0, which was a major overhaul of the package, version 2.1-1 just sprinkles some syntactic sugar on it, introducing the specifyEquations() and cfa() functions; specifyEquations() supports model specification in equation (rather than path) format, and cfa() facilitates compact specification of simple confirmatory factor analysis models. For example, from ?sem, the Duncan, Haller, and Portes peer-influences model can now be specified as mode...

On Tue, Sep 24, 2019 at 12:08 PM Phelps, Matthew <mphelps at cfa.harvard.edu> wrote: > > I *know* there has been a lot going on, and congratulations on getting > CentOS 8 out! > > But(!), I don't see any updates to CO 7.7.1908 in the "updates" directory > on the mirrors I typically use. All the files date from Sept. 14th. >...

...en is CO 7.8.xxxx coming out?") -- *Matt Phelps* *Information Technology Specialist, Systems Administrator* (Computation Facility, Smithsonian Astrophysical Observatory) Center for Astrophysics | Harvard & Smithsonian 60 Garden Street | MS 39 | Cambridge, MA 02138 email: mphelps at cfa.harvard.edu cfa.harvard.edu | Facebook <http://cfa.harvard.edu/facebook> | Twitter <http://cfa.harvard.edu/twitter> | YouTube <http://cfa.harvard.edu/youtube> | Newsletter <http://cfa.harvard.edu/newsletter>

...his carried over to CentOS 7.7.1908? -- *Matt Phelps* *Information Technology Specialist, Systems Administrator* (Computation Facility, Smithsonian Astrophysical Observatory) Center for Astrophysics | Harvard & Smithsonian 60 Garden Street | MS 39 | Cambridge, MA 02138 email: mphelps at cfa.harvard.edu cfa.harvard.edu | Facebook <http://cfa.harvard.edu/facebook> | Twitter <http://cfa.harvard.edu/twitter> | YouTube <http://cfa.harvard.edu/youtube> | Newsletter <http://cfa.harvard.edu/newsletter>

Hi Sorry for the rather long message. I am trying to use the cfa command in the lavaan package to run a CFA however I am unsure over a couple of issues. I have @25 dichotomous variables, 300 observations and an EFA on a training dataset suggests a 3 factor model. After defining the model I use the command fit.dat <- cfa(model.1, data=my.dat, std.lv = T, es...

On Fri, 4 Oct 2019 at 08:18, Phelps, Matthew <mphelps at cfa.harvard.edu> wrote: > > On Fri, Oct 4, 2019 at 6:33 AM Jim Perrin <jperrin at centos.org> wrote: > > > > > > > On 10/3/19 9:35 PM, Stephen John Smoogen wrote: > > > On Thu, 3 Oct 2019 at 13:52, Phelps, Matthew <mphelps at cfa.harvard.edu> > >...

...work is done. It quits at the end of the function. So you have to attach the browser to the functions that are called there, and so forth. But that doesn't quite put everything together. Example. Recently I was trying to find out where the package lavaan's calculations for the function cfa are actually done and it was a maddening chase from one function to the next, as data was re-organized and options were filled in. lavaan's "cfa" function reformats some options, then the work gets done by an eval. cfa> fit <- cfa(HS.model, data=HolzingerSwineford1939) debuggin...

I have friendship data which is strong skewed. So it doesn't make sense to use maximum likelihood methods for fa and cfa. But I couldn't find any function for asymptotically distributed data for doing a factor analysis. Only: apca() but there is no possibility to allow for factor correlations. The same problem is with sem() I couldn't get any solutions for my model because of the distribution. I get the err...

Hello, I am trying to do a multiple groups CFA in lavaan and I get the following error message: Error in cov(data.obs, use = "pairwise") : 'x' is empty I'm not sure what this message is referring to, can anyone help me? Thanks -- View this message in context: http://r.789695.n4.nabble.com/Multiple-Groups-CFA-in-Lavaan-...

Hello everybody, Can anyone tell me how I could analyze data that are at a contigency table form? I already found function cfa in the cfa package but I still don't understand how I could use this function in order to elaborate a contigency table. Every answer is welcome! --------------------------------- ÁðïêôÞóôå ôçí äùñåÜí óáò@yahoo.gr [[alternative HTML version deleted]]

Bill, > The reason for it: when going to calculate the CFA in LLVM, the > original code was adding an offset of type i32 to a pointer. This is > fine if pointers are 32-bits, but we get an assert if the types are > different. By converting the cfa_offset to a pointer, we get it to be > that size. Please ignore my prev. e-mail. The code breaks a...

David, I guess I'm a little confused here. Are you asking me to provide a "pencil copy" of an LOA for your review? I don't understand why you need an LOA from us. We need an LOA from you to order circuits that will be billed to us that will be attached to your CFA. It was also my understanding that you had an LOA ready to be given to us, which had already been reviewed by your lawyers. I have been hearing about this LOA that SC has had in its possession for probably at least a month now and I have asked about it on numerous occasions yet it doesn't see...

On Fri, Oct 4, 2019 at 9:24 AM Stephen John Smoogen <smooge at gmail.com> wrote: > On Fri, 4 Oct 2019 at 08:18, Phelps, Matthew <mphelps at cfa.harvard.edu> > wrote: > > > > On Fri, Oct 4, 2019 at 6:33 AM Jim Perrin <jperrin at centos.org> wrote: > > > > > > > > > > > On 10/3/19 9:35 PM, Stephen John Smoogen wrote: > > > > On Thu, 3 Oct 2019 at 13:52, Phelps, Matthew <...

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.&quo...

I performed a CFA using the lavaan package require('lavaan'); HS.model <- 'external_regulation_soc =~ JOBMOTIVATIE_extsoc1 + JOBMOTIVATIE_extsoc2 + JOBMOTIVATIE_extsoc3 external_regulation_mat =~ JOBMOTIVATIE_extmat1 + JOBMOTIVATIE_extmat2 + JOBMOTIVA...

Hello, Bill > The reason for it: when going to calculate the CFA in LLVM, the > original code was adding an offset of type i32 to a pointer. This is > fine if pointers are 32-bits, but we get an assert if the types are > different. By converting the cfa_offset to a pointer, we get it to be > that size. How do you like the one attached? It seems to be...

...os.org/mailman/listinfo/centos > -- *Matt Phelps* *Information Technology Specialist, Systems Administrator* (Computation Facility, Smithsonian Astrophysical Observatory) Center for Astrophysics | Harvard & Smithsonian 60 Garden Street | MS 39 | Cambridge, MA 02138 email: mphelps at cfa.harvard.edu cfa.harvard.edu | Facebook <http://cfa.harvard.edu/facebook> | Twitter <http://cfa.harvard.edu/twitter> | YouTube <http://cfa.harvard.edu/youtube> | Newsletter <http://cfa.harvard.edu/newsletter>