On 01-Feb-06 Elizabeth Lawson wrote: > Hey eveyone! I hope someone can help wiht this question. I have a > matirux of all zeros and ones and I would like to indentify all unique > patterns in the rows andthe number of times the pattern occurs. I > changed all zeros to NA tried to use prelim.norm to identify all > patterns of missing data in the rows. I got the message > > Warning message: > NAs introduced by coercion > > Any ideas of how to get this to work? Or are there any way to > indentify all the unique patterns in a huge matrix? ( 10000 x 71) > > Thanks for any suggestions!! > > Elizabeth Lawson
I think Chuck Celand has pretty well answered it: Don't worry about the warning, since I'm pretty sure it is generated when prelim.norm is calculating something else (e.g. the covariance matrix) and it is not related to generating prelim.norm(X)$r which is the list of patterns and the numbers of times they occur. Best wsihes, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 094 0861 Date: 01-Feb-06 Time: 15:44:34 ------------------------------ XFMail ------------------------------ ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
