Steve Friedman wrote: > Hi everyone, > > > I'm running a factor analysis on a correlation matrix with 32 rows and > columns. > > I get the following error when I issue the command sequence > > mich.fac1 <- factanal(michcor, factor=1) > Error in solve.default(cv) : system is computationally singular: reciprocal > condition number = 3.24729e-18 >
As the message tells us: Your correlation/covariance matrix is (almost) singular, hence the inverse cannot be computed. Do you have many zeros in there??? Or identical columns for some other reasons? Uwe Ligges > > I'd really appreciate an explanation for this error and a solution to the > problem > > Thanks > Steve > > [[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.
