birgitle birgitlemckesystbotuzhch thanks help time spent turn find way maybe enough correlations final remark examples work first case standard errors missing unfortunately whole dataset mark difford wrote first fails second works hetcortestpartc111132224434560 pdt stderrf hetcortestpartc172 pdf stderrf mark difford wrote hi birgitle seems possible use variables without somehow imputing missing values depends use full data set set stderrf pdf exclude columns cause falter redo ses turned correlations lack ses ca 5 columns havent tried revised classification thats regards mark art living like wrestling dancing marcus aurelius view message context httpwwwnabblecomproblemsusinghetcor28polycor29tp18867343p18871415html sent r help mailing list archive nabblecom ______________________________________________ rhelprprojectorg mailing list httpsstatethzchmailmanlistinforhelp please read posting guide httpwwwrprojectorgpostingguidehtml provide commented minimal selfcontained reproducible code thu 07 aug 2008 071316 0700 r problems using hetcor polycor