Comparison Functions
Functions
all_equal(): Is it true that all corresponding elements ofxandyare equal, have the same shape, and have no missing values?all_consistent(): Is it true that all corresponding elements ofxandyare either equal or at least one is a blank string, have the same shape, and have no missing values?not_all_equal(): Complement ofall_equal.all_not_equal(): Do not know yet. Currently unused; should we remove?
