search for: cpdid

...t to avoid recreating the table from scratch with many commands like the series below. I will have to perform this operation on many different data sets some, with many more factors then this example. ### help me learn to use an apply or other command that will do the following ##### m0<-mydata$cpdID[mydata$time=="24hr" & mydata$treatment=="control" & mydata$expREP=="expREP1" & mydata$techREP=="techREP1"] m1<-mydata$Y[mydata$time=="24hr" & mydata$treatment=="control" & mydata$expREP=="expREP1" & myd...