dsm2.3.3 package

Density Surface Modelling of Distance Sampling Data

block.info.per.su

Find the block information

check.cols

Check column names exist

dsm-data

Data format for DSM

dsm-package

Density surface modelling

dsm.cor

Check for autocorrelation in residuals

dsm

Fit a density surface model to segment-specific estimates of abundance...

dsm.var.gam

Prediction variance estimation assuming independence

dsm.var.movblk

Variance estimation via parametric moving block bootstrap

dsm.var.prop

Prediction variance propagation for DSMs

dsm_cor

Check for autocorrelation in residuals

dsm_var_gam

Prediction variance estimation assuming independence

dsm_var_movblk

Variance estimation via parametric moving block bootstrap

dsm_var_prop

Prediction variance propagation for DSMs

dsm_varprop

Variance propagation for density surface models

dummy_ddf

Detection function objects when detection is certain

generate.ds.uncertainty

Generate data from a fitted detection function

generate.mb.sample

Moving block bootstrap sampler

latlong2km

Convert latitude and longitude to Northings and Eastings

make.soapgrid

Create a knot grid for the internal part of a soap film smoother.

obs_exp

Observed versus expected diagnostics for fitted DSMs

plot.dsm

Plot a density surface model.

plot.dsm.var

Create plots of abundance uncertainty

plot_pred_by_term

Spatially plot predictions per model term

predict.dsm

Predict from a fitted density surface model

predict.fake_ddf

Prediction for fake detection functions

print.dsm

Print a description of a density surface model object

print.dsm.var

Print a description of a density surface model variance object

print.dsm_varprop

Print a description of a density surface model variance object

print.summary.dsm.var

Print summary of density surface model variance object

print.summary.dsm_varprop

Print summary of density surface model variance object

rqgam.check

Randomised quantile residuals check plot for GAMs/DSMs

rqgam_check

Randomised quantile residuals check plot for GAMs/DSMs

summary.dsm

Summarize a fitted density surface model

summary.dsm.var

Summarize the variance of a density surface model

summary.dsm_varprop

Summarize the variance of a density surface model

trim.var

Trimmed variance

vis.concurvity

Visualise concurvity between terms in a GAM

vis_concurvity

Visualise concurvity between terms in a GAM

Density surface modelling of line transect data. A Generalized Additive Model-based approach is used to calculate spatially-explicit estimates of animal abundance from distance sampling (also presence/absence and strip transect) data. Several utility functions are provided for model checking, plotting and variance estimation.

  • Maintainer: Laura Marshall
  • License: GPL (>= 2)
  • Last published: 2022-08-20