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@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. > > -- View this message in context: http://www.nabble.com/WISP-survey-part-of-created-area--tp24586141p24589375.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@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.
