psych does not currently have bootstrapped confidence intervals for loadings. That is a reasonable request and I will try to add it, perhaps in the “real soon now” version of 1.5.4 (almost finished), perhaps in the next release,
Bill > On Apr 13, 2015, at 2:38 PM, stephen sefick <ssef...@gmail.com> wrote: > > Hi, > > Please search the mailing list archives for this, or type bootstrapped PCA > R into google. Please provide a minimal self-contained example of what you > are trying to solve. Please read the posting guide that is referenced at > the end of every email. > kind regards, > > Stephen > > On Mon, Apr 13, 2015 at 11:07 AM, Efstathia Defteraiou < > efstathia.deftera...@student.uibk.ac.at> wrote: > >> Dear All, >> >> I am relatively new in R. >> Im working with the 'psych' package and 'principal' function. >> I would like to know how to generate the bootstraped conf.intervals for >> loadings, >> looking for sth similar to setting 'n.iter' argument for the 'fa' function. >> >> If in 'psych' can't work and suggest me the 'boot' package please provide >> specific Rscript since I don't understand the commands and arguments that >> have to be used before calling the function 'boot'( what are indices? what >> to define as what inside function(){}) >> >> The names Im using are included in the following code: >> 'newdata3.1' is my data and provided as data.frame >> >> makingtheanalysis3.1 <-principal(newdata3.1, nfactors =3, >> residuals = FALSE, >> covar=FALSE,rotate="varimax",scores=TRUE) >> >> >> I am sorry for not providing a specific code but my data are too large >> >> Any Help appreciated >> Cheers! >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. >> > > > > -- > Stephen Sefick > ************************************************** > Auburn University > Biological Sciences > 331 Funchess Hall > Auburn, Alabama > 36849 > ************************************************** > sas0...@auburn.edu > http://www.auburn.edu/~sas0025 > ************************************************** > > Let's not spend our time and resources thinking about things that are so > little or so large that all they really do for us is puff us up and make us > feel like gods. We are mammals, and have not exhausted the annoying little > problems of being mammals. > > -K. Mullis > > "A big computer, a complex algorithm and a long time does not equal > science." > > -Robert Gentleman > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. > William Revelle http://personality-project.org/revelle.html Professor http://personality-project.org Department of Psychology http://www.wcas.northwestern.edu/psych/ Northwestern University http://www.northwestern.edu/ Use R for psychology http://personality-project.org/r It is 3 minutes to midnight http://www.thebulletin.org ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.