Displaying 1 result from an estimated 1 matches for "listofbadusers".
2003 Sep 05
2
eliminating a large subset of data from a frame
...0 rows. One of the columns
represents the user id (of which about 10,000 are unique). I am
able to isolate 1000 of these user ids (stored in a list) that
I want to eliminate from the data set, but I don't know of an
efficient way to do this. Certainly this would be slow:
newdf<-df
for(i in listofbadusers) {
newdf<-subset(tmp,uid!=i)
}
is there a better approach?
I guess I could use the opposite logic and use a list of
good users and add their data to the new frame...
thanks,
pete