Dear list members,

I am trying to fit a glmmADMB model on my data, but even after trying
several things and reading different posts on forums I can't seem to fix
the problem I am encountering. My response variable is the proportion of
individuals surviving at a certain timepoint. The model looks like this:

glmmSing8 =
> glmmadmb(survF~temperature*snail*tank*plate+(1|plate:replicate)+(1|week),
> data=SurvSing8, family="binomial", zeroInflation=TRUE)
>

And the error that I keep getting is this one:

Error in glmmadmb(survF ~ temperature * snail * tank * plate + (1 |
> plate:replicate) +  :
>   The function maximizer failed (couldn't find STD file) Troubleshooting
> steps include (1) run with 'save.dir' set and inspect output files; (2)
> change run parameters: see '?admbControl'
> In addition: Warning messages:
> 1: In glmmadmb(survF ~ temperature * snail * tank * plate + (1 |
> plate:replicate) +  :
>   non-integer response values in discrete family
> 2: running command './glmmadmb -maxfn 500 -maxph 5 -noinit -shess' had
> status 1
>

'snail' is a fixed effect, because I want to distinguish between snails and
'plate' and 'tank' are fixed effects, because they only have two and three
levels respectively. A summary of my data looks like this:

> summary(SurvSing8)
>      snail      temperature    plate   tank         week
> replicate        time
>  Y33    : 59   Min.   :15.00   1:287   1:189   13     : 97   7      : 77
> Min.   :8
>  Y64    : 59   1st Qu.:15.00   2:285   2:218   16     : 92   8      : 75
> 1st Qu.:8
>  Y40    : 55   Median :20.00           3:165   5      : 81   2      : 74
> Median :8
>  Y48    : 53   Mean   :17.53                   6      : 73   3      : 73
> Mean   :8
>  Y30    : 45   3rd Qu.:20.00                   7      : 64   4      : 71
> 3rd Qu.:8
>  Y51    : 45   Max.   :20.00                   8      : 64   1      : 69
> Max.   :8
>  (Other):256                                   (Other):101
> (Other):133
>      total         dead_cc          survF
>  Min.   :10.0   Min.   : 0.00   Min.   :0.0000
>  1st Qu.:13.0   1st Qu.: 6.75   1st Qu.:0.3820
>  Median :20.0   Median :10.00   Median :0.5410
>  Mean   :22.9   Mean   :11.83   Mean   :0.5346
>  3rd Qu.:29.0   3rd Qu.:16.00   3rd Qu.:0.7037
>  Max.   :78.0   Max.   :53.00   Max.   :1.0000
>


Kind regards,
Boris Berkhout

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