Dear R-help list, Apologies. I am trying to convert one table to another. It feels that it should be a very straightforward answer with a single (or two) commands with the right extensions, but I really can't figure this out right now. I have several hundred pheno factors actually, so manually doing this line by line is not an option.
My original table is approximately like this : ID pheno 1 A Breast Cancer 2 A Appendicitis 3 A Microcephaly 4 B Polyps 5 B Autism 6 C Autism 7 D Breast Cancer 8 D Polyps 9 D Appendicitis 10 E Breast Cancer What I want is this : ID Breast Cancer Appendicitis Microcephaly Polyps Autism A 1 1 1 B 1 1 C 1 D 1 1 E 1 The data is here data <- data.frame(ID=c(rep("A",3),rep("B",2),rep("C",1),rep("D",3),rep("E",1)), pheno=c("Breast Cancer","Appendicitis","Microcephaly","Polyps","Autism","Autism","Breast Cancer","Polyps","Appendicitis","Breast Cancer")) Thank you very much! Many apologies. Min-Han [[alternative HTML version deleted]] ______________________________________________ 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.