[R] Aggregate individual level data to age categories
stei@@@duke m@iii@g oii gm@ii@com
stei@@@duke m@iii@g oii gm@ii@com
Wed Feb 12 21:39:42 CET 2020
Dear All,
I have a seemingly standard problem to which I somehow I do not find
a simple solution. I have individual level data where x is a
categorical variable with 3 categories which I would like to aggregate
by age.
age x
45 1
45 2
46 1
47 3
47 3
and so on.
It should after transformation look like that
age x_1 x_2 x_3
45 1 0 1
46 1 0 0
47 0 0 2
Basically to calculate prevalences by age categories.
Thanks for any pointers!
Cheers!
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