Converting two columns of a data frame to a named vector

Question

I need to convert a multi-row two-column data.frame to a named character vector. My data.frame would be something like:

dd = data.         


        

Answer 1

For variety, try split and unlist:

unlist(split(as.character(dd$name), dd$crit))
#        a        b        c        d 
#  "Alpha"   "Beta" "Caesar"  "Doris"