How to build SAS type custom formats in R?

r
sas
format

#1

Hi all,
My requirement is to build SAS style custom formats in R, did some googling but was not able to come up with anything. I have a dataset with 4 columns. I need to build 3 custom formats. Based on the value read from column4 and type of custom format specified i will display either value from column1 ,2 or 3. Is there a package or some function that can assist me with this task? Thanks