Dear Christian, A quick question, is there a way to convert a data frame to an expression tree set? Thanks, Best, Steve [[alternative HTML version deleted]]

Dear Steve, There exists a function 'root.expr()' to create a new ExprTreeSet for an existing root expression file. You can look at the source code 'root.expr.R' how to create an ExprTreeSet which takes a data.frame as slot 'data'. However, I am not sure if this will help you. I would need more information what you want to do. Best regards Christian Steve Shen wrote: > Dear Christian, > > A quick question, is there a way to convert a data frame to an > expression tree set? Thanks, > > Best, > Steve