Dear R gurus,
I think this question is very trivial, but I search around the HELP
file and this maillist can come up with no answer. Suppose I have a
vector called AGE like this
> sort(AGE)
[1] 30 34 35 37 37 38 38 38 38 39 39 40 40 42 42 43 43 43 43 43 43 44
[23] 44 44 44 44 44 44 45 45 45 46 46 46 46 46 46 47 47 47 47 47 47 48
.....
I can count the frequency based on some cut point using table with cut,
> table(cut(AGE, b=c(0,39,49,59,69,79,89)))
(0,39] (39,49] (49,59] (59,69] (69,79] (79,89]
11 46 70 45 16 1
How can I calculate the cumulative Frequency, e.g.
0-39 11
40-49 57
50-59 127
60-69 172
70-79 188
80-89 189
using R command?
--
CH Chan
Research Assistant - KWH
http://www.macgrass.com
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