search for: zygosity

...ng, as I get results that obviously aren't correct. Many thanks, Paul twin.wide$a<-twin.wide$RCCT<600 & twin.wide$RCCT>480 twin.wide$b<-twin.wide$LCCT<600 & twin.wide$LCCT>480 selVarsCCT <- with(twin.wide,c('a','b')) MZCCT <- subset(twin.wide,Zygosity=='MZ',selVarsCCT) DZCCT <- subset(twin.wide,Zygosity=='DZ',selVarsCCT) -- View this message in context: http://n4.nabble.com/Exclude-data-using-logical-tp1689992p1689992.html Sent from the R help mailing list archive at Nabble.com.

...capabilities, for my data analysis, like the Pinheiro & Bates S-Plus/R package nlme() but with binomial family and logit link. I need multiple crossed, possibly interacting fixed effects (age cohort of twin when entered study, sex of twin, sampling method used to acquire twin pair, and twin zygosity), a couple of random effects other than the cluster variable, and the ability to have a variable of the sort that P&B call "outer" to the clustering variable---zygosity. Dependent variables are all parental (mom, dad separately of course) psychiatric diagnoses. In my data, twin p...