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torgeir
2006 Oct 17
2
Calculate NAs from known data: how to?
...quot; age given a
probability for example "55 cm = 4 years has a p=75%, while 55 cm = 4
years has a p=25%". Those "p-values" should be calculated from the real
data.
How can this be done in R, and what is the right way to do it?
Sample number 1 is given below.
Best regards
Torleif Markussen Lunde
length age sampleno
55 5 1
45 4 1
55 4 1
55 5 1
60 6 1
45 5 1
52 5 1
48 4 1
51 6 1
53 4 1
54 5 1
48 5 1
50 6 1
55 6 1
55 4 1
50 5 1
49 5 1
40 4 1
50 6 1
36 4 1
46 6 1
35 3 1
41 3 1
44 5 1
36 3 1
29 2 1
28 2 1
32 2 1
31 2 1
30 2 1
29 2 1
32 2 1
28 2 1
25 2 1
27 2 1
27 2 1
24 2 1
27...
2009 Dec 08
0
Difference in S.E. gee/yags and geeglm(/geese)
...(diag(mm$robust.variance))
#(Intercept) tensionM tensionH
# 5.77 7.46 3.73
# geeglm:
sqrt(diag(mm2$geese$vbeta))
# [1] 8.17 10.56 5.28
# yags:
sqrt(diag(slot(mm3, "robust.parmvar")))
# [1] 5.77 7.46 3.73
Any explanation of this behavior is welcome.
Best wishes
Torleif Markussen Lunde
PhD candidate
Centre for International Health/
Bjerkens Centre for Climate Research
University of Bergen
Norway