andyer weng wrote: > Sorry Guys, i press the wrong button to send out the uncompleted message. > > let me do it again. > > I have a data set containing : > > pclass: A factor giving the class of the passenger: one of 1st, 2nd, 3rd. > age: The age of the passenger in years. > sex: Passenger's gender: female or male > age.group: Passengers age group, one of 0‐9 , 10‐19, 20‐29, > 30‐39, 40‐49, 50‐59, 60‐69,70‐79 > survived: Passenger's survival (1=survived, 0=did not survive) > > Ignoring the variable age, > - I need to group the data into groups corresponding to each > age‐group/sex/class combination, > - I need to compute the logits for each combination. > - Make a data frame containing the logits, and the categorical > variables. I need to have one line in the data frame for each > combination of the factor levels. > > Can someone please help with the R code for above???!!! > > Thanks millions!! > > Cheers > Andyer. > > > ---------- Forwarded message ---------- > From: andyer weng <[EMAIL PROTECTED]> > Date: 2008/10/18 > Subject: RE:Categorial Response Questions > To: r-help@r-project.org > > > Hi All, > > I have a data set containing : > pclass: A factor giving the class of the passenger: one of 1st, 2nd, 3rd. > age The age of the passenger in years. > sex Passenger's gender: female or male > age.group Passengers age group, one of 0‐9 , 10‐19, 20‐29, 30‐39, > 40‐49, 50‐59, 60‐69, > 70‐79 > survived Passenger's survival (1=survived, 0=did not survive) >
For that dataset, 10-19 is aa very heterogeneous group; those ages should not have been combined. Frank _______________________________ Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.