[R] Subset command and the : operator

Hello- I have some code that looks like this: with(mydatalocal, sum(table(Service[Time==5:8]))) This is designed to add up the numbers of responses between the Time codes 5 to 8 (which are integers and refer to quarters). Service is just one of the variables, I'm just trying to count the number

Re: [R] Subset command and the : operator

What you are probably looking for is the %in% operator: with(mydata, sum(table(X1[X2 %in% 5:8]))) Read up on how operations are vectorized and how variables are recycled if not long enough x - 1:10 x == 1:2 # compares first two fine [1] TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE