We need a reproducible example. Please read the FAQ on BUGS and give an example and a clear example of why you are sure it is an error and not a misunderstanding.
On Thu, 10 Jun 2004 [EMAIL PROTECTED] wrote: > Full_Name: Kristian E. Markon > Version: 1.90 > OS: WinXP > Submission from: (NULL) (24.26.179.28) > > > I have been having problems with na.omit, and am not sure if it is a bug, or new > behavior. > > Basically, I observe exactly the same behavior as described in the bug > Language-fixed/522, but it occurs with classes other than matrices, including > data.frames. I am not sure how to reproduce it, as it sometimes occurs with > matrices, and sometimes not, and sometimes with data.frames and sometimes not. > It does occur repeatedly, however. > > I have observed another issue that may be related: It sometimes seems that > classes are not being converted. > > For example, if I do a factor analysis and save the loading matrix in an > object--e.g., > > temp.fa = factanal(covmat=x.cor, factors=2) > > temp.load = temp.fa$load > > I will sometimes get error messages that such and such is not possible with > loading matrices. > > For example, if I try to put the loadings in a list, and then convert the list > to a data.frame, as in > > as.data.frame(list(items=names, load=temp.load)), I get an error stating that > loadings cannot be converted to data.frames. True, and why do you think that is an error? > This error persists if I convert the loading matrix to a matrix class--e.g., > > as.data.frame(list(items=names, load=as.matrix(temp.load))) > > However, if I create a matrix, and assign the loadings to this matrix--e.g., > > load.mat = matrix(nrow=35,ncol=2) > > load.mat[1:35,1:2] = as.matrix(temp.load) > > then the following command > > as.data.frame(list(items=names, load=temp.load)) > > works as expected. > > The reason why I suspect the na.omit problem may be related is that I seem to > observe na.omit problems more often when dealing with objects that have been > converted from one class to another. -- Brian D. Ripley, [EMAIL PROTECTED] 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, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
