I'd guess that "filename" is not a matrix nor something that can be coerced into a matrix. Try
> class(filename) To find out if it is a matrix. Without knowing more about "filename" it is hard to diagnose. It could be a data.frame with a character field or some other simple issue resulting from importing the data into R. > str(filename) Will list the fields in the "filename" and their type. For norm they must all be numeric. ---------------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77843-4352 -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of David Kaplan Sent: Tuesday, June 28, 2011 3:22 PM To: r-h...@stat.math.ethz.ch Subject: [R] Question about error message Greetings, I'm getting this error message using Joe Shafer's "NORM" package. Error in storage.mode(x) <- "double" : (list) object cannot be coerced to type 'double' I'm not sure what this means. I get this message when running s <- prelim.norm(filename) prelim.norm is used to develop some summary statistics, etc. before implementing the EM algorithm for missing data. Please note that this is a data fusion exercise and there is considerable amounts of missing data by design. Thanks in advance, David -- ======================================================================= David Kaplan, Ph.D. Professor Department of Educational Psychology University of Wisconsin - Madison Educational Sciences, Room, 1082B 1025 W. Johnson Street Madison, WI 53706 email: dkap...@education.wisc.edu homepage: http://www.education.wisc.edu/edpsych/default.aspx?content=kaplan.html Phone: 608-262-0836 ======================================================================= [[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.
