Hi all,
I have some problems with the mle2 function
> RogersIIbinom <- function(N0,attackR3_B,Th3_B)
{N0-lambertW(attackR3_B*Th3_B*N0*exp(-attackR3_B*(24-Th3_B*N0)))/(attackR3_B*Th3_B)}
> RogersII_B <-
mle2(FR~dbinom(size=N0,prob=RogersIIbinom(N0,attackR3_B,Th3_B)/N0),start=list(attackR3_B=1.5,Th3_B=0.04),method="Nelder-Mead",data=dat)
Error in dbinom(x, size, prob, log) :
Non-numeric argument to mathematical function
Can somenone explain met what this error means? All my parameters and data
are defined, so I don't understand what the non-numeric argument is???
With different equations the script does work...........
For this function to run you need packages: bbmle and emdbook.
Testdata I pasted here
N0 FR
5 4
3 2
5 3
5 4
6 4
5 4
4 2
5 4
6 5
5 3
10 5
14 7
12 6
17 9
10 4
16 8
15 8
14 5
15 6
15 5
19 10
20 11
22 10
21 12
25 12
26 11
25 10
25 12
25 11
24 9
35 12
33 12
35 13
36 12
31 12
37 12
39 13
36 14
35 12
35 10
46 11
44 10
41 12
43 14
45 12
48 11
45 13
45 9
49 12
45 11
56 12
59 15
52 11
54 10
51 12
55 12
61 13
55 12
54 10
55 12
Kind regards,
Met vriendelijke groeten,
Joachim
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______________________________________
Joachim Audenaert
Adviesdienst Gewasbescherming
Proefcentrum voor Sierteelt
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Belgium
Tel. +32 9 353 94 71
Fax +32 9 353 94 95
E-mail: joachim.audena...@pcsierteelt.be
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