Argh...
I just realized the inefficiency of one of my loops so I am trying to get rid
of it.
I have two data frames:
names(SubdivisionHouses)
"BuildYear", "SqrFootage", "Exterior"
names(BuildingCodes)
"Year", "Codes"
I am trying to add on the the "Codes" column to according to the "BuildYear"
Currently I am doing the following
SubdivisionHouseMod<-NULL
for(hh in 1:unique(BuildingCodes$Year))
{
SubdivisionHouses_tmp<-subset(SubdivisionHouses,
SubdivisionHouses$BuildYear == BuildingCodes$Year)
BuildingCodes_tmp<-subset(BuildingCodes, BuildingCodes$BuildYear ==
BuildingCodes[hh, ]$BuildYear)
SubdivisionHouseMod_tmp<-cbind(SubdivisionHouses_tmp,
BuildingCodes_tmp$Codes)
SubdivisionHouseMod<-rbind(SubdivisionHouseMod, SubdivisionHouseMod_tmp)
}
Doing this seems to work, but it also seems to be really inefficient.
Are there any suggestions of ways to cut this down and speed things up?
Thanks again.
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