Janet
Your point shapefile cannot be fed directly into dsims
. There is an argument
fitted.model
associated with the make.density
function that uses the gam output from the
mgcv
package associated with a model fitted to your predicted densities and
s(x,y)
as predictors. If your point shape file came from an
mgcv
analysis, then use the model rather than the shape file.
I'm not sure how much testing the fitted.model
approach to make.density
has received. We'd be interested in your experience.