On Oct 2, 2013, at 12:15 AM, pattebegga wrote: > Hi > > Assume that I want to compare two methods, say skinfold measurement and BMI, > in how they classify subjects into four categories. In a 2x2 table I would > simply calculate sensitivity and specificity and NPV an PPV, using the > standard formulas, but can the same be directly applied in the 4x4 table
> Or are other methods preferable? This is the wrong place for this question, please send your statisical question to a venue where this would be on topic, or if this is homework, then consult your instructor. -- David Winsemius Alameda, CA, USA ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.

