[R] Factor analysis with dichotomous variables
Hello, I would like to conduct an exploratory factor analysis with dichotomous data. Do any R routines exist for this purpose? I recall reading something about methods with tetrachoric correlations. Any help would be appreciated. Best, Tom Denson Department of Psychology University of Southern California __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
RE: [R] Factor analysis with dichotomous variables
You can use factanal to do the analysis. The polychor() package will give you polychorics. You can then the do the factor analysis on this correlation matrix. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Denson Sent: Friday, December 17, 2004 12:31 PM To: [EMAIL PROTECTED] Subject: [R] Factor analysis with dichotomous variables Hello, I would like to conduct an exploratory factor analysis with dichotomous data. Do any R routines exist for this purpose? I recall reading something about methods with tetrachoric correlations. Any help would be appreciated. Best, Tom Denson Department of Psychology University of Southern California __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Factor analysis with dichotomous variables
On Fri, 17 Dec 2004 13:07:08 -0500, Doran, Harold [EMAIL PROTECTED] wrote: You can use factanal to do the analysis. The polychor() package will give you polychorics. You can then the do the factor analysis on this correlation matrix. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Denson Sent: Friday, December 17, 2004 12:31 PM To: [EMAIL PROTECTED] Subject: [R] Factor analysis with dichotomous variables Hello, I would like to conduct an exploratory factor analysis with dichotomous data. Do any R routines exist for this purpose? I recall reading something about methods with tetrachoric correlations. Any help would be appreciated. You may also want to consider the routines in MCMCpack (MCMCordfactanal and MCMCmixfactanal), depending on your application. Chris -- Chris Lawrence - http://blog.lordsutch.com/ __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
