[R] aggregate similar to SPSS

[Natalie O'Toole]

Hi,

Does anyone know if: with R can you take a set of numbers and aggregate
them like you can in SPSS? For example, could you calculate the percentage
of people who smoke based on a dataset like the following:

smoke = 1
non-smoke = 2

variable
1
1
1
2
2
1
1
1
2
2
2
2
2
2


When aggregated, SPSS can tell you what percentage of persons are smokers
based on the frequency of 1's and 2's. Can R statistical package do a
similar thing?

Thanks,

Nat