Computes Effective Strip Width (ESW) for line-transect detection functions, or the analogous Effective Detection Radius (EDR) for point-transect detection functions.
An estimated detection function object. An estimated detection
function object has class 'dfunc', and is usually produced by a call to
A data frame containing new values of the covariates at which
ESW's or EDR's are sought. If NULL or missing and
Serves as a wrapper for
newdata is not missing or NULL and
covariates are present in
obj, returned value is
a vector with length equal to the number of rows in
newdata is missing or NULL and covariates are present
obj, returned value is a vector with length equal to
the number of detections in
obj$dist. In either of the
above cases, elements in the returned vector are
the effective sampling distances for the corresponding set of
obj does not contain covariates,
newdata is ignored and
a scalar equal to the (constant) effective sampling distance for all
detections is returned.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.