[R-sig-Geo] Spatstat: (coef(summary()) inquiry/problem.

[Rolf Turner]

On 21/05/14 03:28, Silvia Cordero-Sancho wrote:
> Hello,
>
> I am running a hybrid model (following Baddeleyet al 2013). I am using the
> ppm function, the tendency is being represented by a set of environmental
> variables  ("im"- format) and the incidence is being represented by a
> hybrid model (StraussHard and AreaInter). It seems that everything is
> working properly, I have been able to use the following tools with the
> model (simulate(), diagnose.ppm()) but I have not been successful to use
> the tool  (coef(summary()).
>
> The problem is that it runs for hours,  which made me concern that there is
> something abnormal, (so I killed the process after a couple of hours). With
>   previous models (no hybrid ones) I was able to use this tool and display
> the coefficients without problem. I will like to know if this is "normal"
> or it is a sign that it is something abnormal with my model.
>
> I will appreciate any advise.

I just tried a toy example using the sort of model you are fitting and 
there does seem to be a problem with summary() going away and not coming 
back.  We (i.e. Adrian --- (!!!) :-) ) will try to work out what is 
going on.  And with a bit of luck, get back to you.

cheers,

Rolf Turner