effort {Rdistance} | R Documentation |
effort - Effort information
Description
Extract effort information from an Rdistance data frame. Effort is length of line-transects or number of points on point-transects.
Usage
effort(x, ...)
Arguments
x |
Either an estimated distance function, output by
|
... |
Ignored |
Value
A vector containing effort. If line-transects, return is length of transects, with units. If point-transects, return is number of points (integers, no units). Vector length is number of transects. If input is not an RdistDf or estimated distance function, return is NULL.
Examples
data(sparrowDf)
effort(sparrowDf)
fit <- dfuncEstim(sparrowDf, dist ~ 1)
effort(fit)
[Package Rdistance version 4.0.5 Index]