Distance Sampling Detection Function and Abundance Estimation

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Documentation for package ‘Distance’ version 1.0.9

• DESCRIPTION file.
• Package NEWS.

Help Pages

Distance-package	Distance sampling
add_df_covar_line	Add covariate levels detection function plots
AIC.dsmodel	Akaike's An Information Criterion for detection functions
amakihi	Hawaiian amakihi point transect data
amakihi_units	Hawaiian amakihi point transect data
bootdht	Bootstrap uncertainty estimation for distance sampling models
bootdht_Dhat_summarize	Simple summary of density results for bootstrap model
bootdht_Nhat_summarize	Simple summary of abundance results for bootstrap model
capercaillie	Capercaillie in Monaughty Forest
capercaillie_units	Capercaillie in Monaughty Forest
checkdata	Check that the data supplied to 'ds' is correct
chi2_select	Tools for model selection when distance sampling data are overdispersed
ClusterExercise	Simulated minke whale data with cluster size
ClusterExercise_units	Simulated minke whale data with cluster size
convert_units	Convert units for abundance estimation
create.bins	Create bins from a set of binned distances and a set of cutpoints.
create_bins	Create bins from a set of binned distances and a set of cutpoints.
CueCountingExample	Cue counts of whale blows
CueCountingExample_units	Cue counts of whale blows
dht2	Abundance estimation for distance sampling models
Distance	Distance sampling
ds	Fit detection functions and calculate abundance from line or point transect data
ds.gof	Goodness of fit tests for distance sampling models
ducknest	Ducknest line transect survey data
ducknests_units	Ducknest line transect survey data
ducknest_units	Ducknest line transect survey data
DuikerCameraTraps	Duiker camera trap survey
DuikerCameraTraps_units	Duiker camera trap survey
dummy_ddf	Detection function objects when detection is certain
ETP_Dolphin	Eastern Tropical Pacific spotted dolphin survey
ETP_Dolphin_units	Eastern Tropical Pacific spotted dolphin survey
flatfile	The flatfile data format
gof_ds	Goodness of fit testing and quantile-quantile plots
golftees	Golf tee data
golftees_units	Golf tee data
logLik.dsmodel	log-likelihood value for a fitted detection function
LTExercise	Simulated line transect survey data
LTExercise_units	Simulated line transect survey data
make_activity_fn	Multiplier bootstrap helper functions
minke	Simulated minke whale data
plot.dsmodel	Plot a fitted detection function
predict.dsmodel	Predictions from a fitted detection function
predict.fake_ddf	Prediction for fake detection functions
print.dht_result	Print abundance estimates
print.dsmodel	Simple pretty printer for distance sampling analyses
print.summary.dsmodel	Print summary of distance detection function model object
PTExercise	Simulated point transect survey data
PTExercise_units	Simulated point transect survey data
p_dist_table	Distribution of probabilities of detection
QAIC	Tools for model selection when distance sampling data are overdispersed
Savannah_sparrow_1980	Savanna sparrow point transects
Savannah_sparrow_1980_units	Savanna sparrow point transects
Savannah_sparrow_1981	Savanna sparrow point transects
Savannah_sparrow_1981_units	Savanna sparrow point transects
sikadeer	Sika deer pellet data from southern Scotland
sikadeer_units	Sika deer pellet data from southern Scotland
Stratify_example	Simulated minke whale data
Stratify_example_units	Simulated minke whale data
summarize_ds_models	Make a table of summary statistics for detection function models
summary.dht_bootstrap	Summarize bootstrap abundance uncertainty estimate output
summary.dsmodel	Summary of distance sampling analysis
Systematic_variance_1	Simulation of encounter rate variance
Systematic_variance_1_units	Simulation of encounter rate variance
Systematic_variance_2	Simulation of encounter rate variance
Systematic_variance_2_units	Simulation of encounter rate variance
unflatten	Unflatten flatfile data.frames
unimak	Simulated line transect survey data with covariates
unimak_units	Simulated line transect survey data with covariates
units_table	Generate table of unit conversions
wren	Steve Buckland's winter wren surveys
wren_5min	Steve Buckland's winter wren surveys
wren_5min_units	Steve Buckland's winter wren surveys
wren_cuecount	Steve Buckland's winter wren surveys
wren_cuecount_units	Steve Buckland's winter wren surveys
wren_lt	Steve Buckland's winter wren surveys
wren_lt_units	Steve Buckland's winter wren surveys
wren_snapshot	Steve Buckland's winter wren surveys
wren_snapshot_units	Steve Buckland's winter wren surveys