is.points function

is.points - Tests for point surveys

Determines whether a distance function is for a point survey or line survey.

is.points(x)

Arguments

• x: Either an estimated distance function, output by dfuncEstim, or an Rdistance nested data frame, output by RdistDf.

Returns

TRUE if the model frame or fitted distance function contains point surveys. FALSE if the model frame or distance function contains line transect surveys.