R help - Jul 2009 - WISP-survey part of created area?

Dear R-Team!
I am a beginner in R and use the WISP library for a project. I am using
mark-recapture to estimate abundance. I would like to know if it is possible to
only survey a part of the created area (with the created population) and not all
of it. I am trying to quantify bias introduced by non random sampling design
(i.e. the area is 24x100 but I only wanna search 24x40) Thank you already in
advance for your help. Anja



      
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Anja:

Unfortunately, WiSP does not offer a spatially-explicit way to specify
capture probabilities for the designated study region.

Although the members of the population are assigned spatial coordinates
within the study region, there is no specification of where the
'captures'
take place within the study area.

You will have to manufacture this heterogeneity in catchability via the
distribution of exposure risk, as we discussed last week.


Anja Wittich wrote:
> 
> Dear R-Team!
> I am a beginner in R and use the WISP library for a project. I am using
> mark-recapture to estimate abundance. I would like to know if it is
> possible to only survey a part of the created area (with the created
> population) and not all of it. I am trying to quantify bias introduced by
> non random sampling design (i.e. the area is 24x100 but I only wanna
> search 24x40) Thank you already in advance for your help. Anja 
> 
> 
> 
>       
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 
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