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Hi,
somebody asked me to do a Poisson regression on cancer incidence over
years to see wether if there is a descending or an ascending tendancy.
I tried with R, but it complains that the data are not integer but
floating poing data. So, as I never did that sort of thing before, I'm a
bit lost.
the data serie looks like this
SEX PERIOD INCIDENCE
1 [1978;1982] 57,3
1 [1983;1987] 58,3
1 [1988;1992] 65
1 [1993;1997] 56,8
2 [1978;1982] 4,6
2 [1983;1987] 5
2 [1988;1992] 5,1
2 [1993;1997] 6,2
Any suggestions?
Thanks a lot
- --
La publicit�, c'est la science qui consiste � interrompre
les processus du cerveau le temps de lui piquer du fric.
Stephen Leacoch
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