mean for each row
How about rowSums(x)/ncol(x), where x is the matrix?
On Mon, Mar 17, 2008 at 1:48 PM, Roslina Zakaria <zroslina at yahoo.com> wrote:
Hi r-users,
How do find the mean for each row? Thank you in advance for your help.
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 Day Totals
1 0.0 0.0 0.0 0.0 0.6 0.0 8.4 0.0 29.4 0.0 38.4
2 0.0 0.0 1.8 0.0 22.4 0.0 0.2 0.4 0.8 0.0 25.6
3 7.8 0.0 0.0 17.6 1.4 0.0 0.0 0.0 0.0 0.0 26.8
4 2.2 0.8 0.4 0.0 0.2 11.2 1.4 33.2 0.0 0.0 49.4
5 0.2 1.8 0.0 1.0 0.0 0.2 0.0 12.2 0.0 19.2 34.6
6 0.0 0.0 0.0 1.0 0.0 0.0 0.0 2.2 0.0 14.6 17.8
7 0.0 0.0 0.0 0.0 3.6 0.2 0.0 2.0 0.0 0.2 6.0
8 0.0 0.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0
9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
10 1.0 1.4 0.0 0.0 0.0 1.0 0.4 0.0 0.0 0.0 3.8
11 0.0 8.2 0.0 0.0 0.0 0.0 8.4 0.0 0.0 0.4 17.0
12 10.8 0.8 0.0 0.0 0.0 0.0 1.0 0.0 0.0 4.2 16.8
13 32.8 0.0 0.0 0.8 0.0 0.0 0.0 0.0 0.2 0.2 34.0
14 1.0 0.0 1.6 0.2 0.0 0.0 0.0 0.0 0.0 0.0 2.8
15 0.0 0.0 0.0 2.2 1.4 0.0 0.0 0.0 0.0 0.0 3.6
16 0.6 0.0 0.0 0.6 22.0 0.0 0.0 0.0 0.0 0.0 23.2
17 0.0 0.0 0.0 0.0 0.0 0.0 2.8 0.0 0.0 0.0 2.8
18 2.8 0.0 0.0 0.0 0.0 0.0 8.2 0.0 0.0 8.2 19.2
19 0.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.2 0.4
20 0.0 8.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.2
21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.4
23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 0.0 0.0 1.2
24 0.0 0.0 0.0 0.0 1.0 0.0 0.0 2.0 8.2 0.0 11.2
25 3.2 0.0 0.0 0.6 0.6 0.0 0.0 0.0 11.8 0.0 16.2
26 0.0 0.0 26.2 0.0 12.6 0.0 0.0 2.2 0.0 0.0 41.0
27 0.2 0.0 10.6 0.0 1.2 0.0 0.0 1.8 0.0 0.0 13.8
28 0.0 4.0 0.0 5.8 0.0 0.0 0.0 0.0 0.0 0.0 9.8
29 0.2 12.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.6
30 0.0 2.6 0.0 0.0 2.2 0.0 0.0 0.0 0.0 0.0 4.8
31 0.0 0.0 0.6 0.0 0.8 0.0 0.0 0.0 4.8 0.0 6.2
Year Totals 62.8 40.2 51.2 29.8 70.0 12.8 30.8 57.2 55.2 47.6 457.6
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??? Hesen Peng Department of Statistics, Fudan University, Shanghai, P. R. C. Tel: Mobile 86-13052231416 Dormitory 86-21-65647724 Home 86-23-68207912