Displaying 1 result from an estimated 1 matches for "costaux_avcar".
2012 Sep 06
1
use of ddply() within function
...costcarin = paste(c("CS_",costtype,"CAR"),collapse="")
costmotoin = paste(c("CS_",costtype,"MOTO"),collapse="")
browser()
COSTaux_AVCAR <- ddply(CARaux,c("SC","YEAR"),summarize,costcsolo = sum(CARaux[[costcarin]]))
COSTaux_AVMOTO <- ddply(CARaux,c("SC","YEAR"),summarize,costmoto= sum(CARaux[[costmotoin]] ))
COS...