checkdata

data

region.table

sample.table

obs.table

formula

<p>This is an internal function that checks the <code>data.frame</code>s supplied
to <code>ds</code> are "correct".</p>

A simple way of fitting detection functions to distance sampling
data for both line and point transects. Adjustment term selection, left and
right truncation as well as monotonicity constraints and binning are
supported. Abundance and density estimates can also be calculated (via a
Horvitz-Thompson-like estimator) if survey area information is provided. See
Miller et al. (2019) <doi:10.18637/jss.v089.i01> for more information on
methods and <https://examples.distancesampling.org/> for example analyses.

Laura Marshall

Distance

Distance Sampling Detection Function and Abundance Estimation

checkdata function

Check that the data supplied to <code>ds</code> is correct — checkdata

Check that the data supplied to <code>ds</code> is correct

checkdata: Check that the data supplied to `ds` is correct

Description

Usage

Arguments

Value