Re: [R] Factanal fits
On 28/05/2012 02:20, Hunsicker, Lawrence wrote: Greetings, all: I am using factanal in R. When I enter a matrix or a formula, the print method winds up with something like this: Test of the hypothesis that 6 factors are sufficient. The chi square statistic is 28.1 on 22 degrees of freedom. The p-value is 0.172 But when I enter a covmat, the print method winds up with something like this: The degrees of freedom for the model is 22 and the fit was 0.0904 The actual factanal print method is suppressed, so I can't figure out how the two calculations are done, or how they relate to one another. Can any of you help? No, it is not. You can find it by getS3method, for example. Many thanks in advance for any insight any of you can give me. To do the tests you need the number of observations. I expect you used 'covmat' incorrectly, but you were too unhelpful to actually show us what you did. Larry Hunsicker Professor, Internal Medicine, U. Iowa College of Medicine Notice: This UI Health Care e-mail (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential and may be legally privileged. If you are not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying of this communication is strictly prohibited. Please reply to the sender that you have received the message in error, then delete it. Thank you. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. And that means YOU. No HTML (as we asked), and include reproducible code for what you did and claim does not work as you want. -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Factanal fits
Many thanks to Michael Weylandt and Prof. Ripley for answers to yesterday's query. 1. The response to methods(print) is that the print.princomp method is non-visible, not suppressed, as I misquoted. The method can be located by either getAnywhere(print.princomp) as suggested by Michael or by getS3method(f = 'print', class = 'factanal') as suggested by Prof. Ripley. I learn something new about R every day! 2. Prof. Ripley is correct, of course. To print out the test whether The test of the hypothesis that X factors are sufficient. when submitting a covmat, the factanal function needs to know the n.obs. The following call, packaging n.obs with the covmat, worked perfectly: cor3.fa1 - factanal(factors = 6, covmat = list(cov = cor3, n.obs = 418)) Again, thanks. Larry Hunsicker Prof. Medicine, U. Iowa College of Medicine __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Factanal fits
Greetings, all: I am using factanal in R. When I enter a matrix or a formula, the print method winds up with something like this: Test of the hypothesis that 6 factors are sufficient. The chi square statistic is 28.1 on 22 degrees of freedom. The p-value is 0.172 But when I enter a covmat, the print method winds up with something like this: The degrees of freedom for the model is 22 and the fit was 0.0904 The actual factanal print method is suppressed, so I can't figure out how the two calculations are done, or how they relate to one another. Can any of you help? Many thanks in advance for any insight any of you can give me. Larry Hunsicker Professor, Internal Medicine, U. Iowa College of Medicine Notice: This UI Health Care e-mail (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential and may be legally privileged. If you are not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying of this communication is strictly prohibited. Please reply to the sender that you have received the message in error, then delete it. Thank you. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Factanal fits
I'm not sure what you mean by the method is suppressed -- if it's not exported just use getAnywhere() to find it. Sorry I can't give a more detailed follow up -- not at my computer right now, Best, Michael On Sun, May 27, 2012 at 9:20 PM, Hunsicker, Lawrence lawrence-hunsic...@uiowa.edu wrote: Greetings, all: I am using factanal in R. When I enter a matrix or a formula, the print method winds up with something like this: Test of the hypothesis that 6 factors are sufficient. The chi square statistic is 28.1 on 22 degrees of freedom. The p-value is 0.172 But when I enter a covmat, the print method winds up with something like this: The degrees of freedom for the model is 22 and the fit was 0.0904 The actual factanal print method is suppressed, so I can't figure out how the two calculations are done, or how they relate to one another. Can any of you help? Many thanks in advance for any insight any of you can give me. Larry Hunsicker Professor, Internal Medicine, U. Iowa College of Medicine Notice: This UI Health Care e-mail (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential and may be legally privileged. If you are not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying of this communication is strictly prohibited. Please reply to the sender that you have received the message in error, then delete it. Thank you. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
