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‘confint.default()’ would fail on S4 model objects because it used ‘stats’ methods for ‘coef’ and ‘vcov’ and their defaults did not know about S4. Now changed to look for the the two functions in the calling frame. The mechanism for ‘AIC.default’ and ‘BIC.default’ has been changed to do likewise.
All four of ‘{col,row}{Sums,Means}(Z, na.rm=TRUE)’ now correctly work with complex ‘Z’ where ‘is.na(Re(Z))’ differs from ‘is.na(Im(Z))’, fixing PR#18942, unearthed by Dirk Eddelbuettel.