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dwp (version 1.2)

Density-Weighted Proportion

Description

Fit a Poisson regression to carcass distance data and integrate over the searched area at a wind farm to estimate the fraction of carcasses falling in the searched area and format the output for use as the dwp parameter in the 'GenEst' or 'eoa' package for estimating bird and bat mortality, following Dalthorp, et al. (2024) .

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Version

Install

install.packages('dwp')

Monthly Downloads

244

Version

1.2

License

CC0

Maintainer

Daniel Dalthorp

Last Published

February 7th, 2026

Functions in dwp (1.2)

Fit Distance Distribution Model(s)

Names of the GLM Coefficients for Each Distribution

Export Estimated Density-Weighted Proportion to File in Proper GenEst Format

Remove Particular Names from a Longer List

Full List of Names of Distributions

Density-Weighted Proportion

Vector of Colors Used in Graphs of Fitted Models

Names of All the Available Models

Format DWP Estimate for Use in GenEst

Find suitable mmax for clipping improper priors for M

Example Data for Site Layout on an (x, y) Grid

Example Simple Geometry Data Format for Site Layout

Estimate Probability Carcass lands in Searched Area

Calculate Probability Functions for Distance Distributions

Convert Distribution Name + Parameters to ddSim Object

Run Models through a Sieve to Filter out Dubious Fits

Example Bare Vector Format for Eagle Data

Example Polygon Data for Site Layout

Import Carcass Observations Locations from Shape Files

Simple Extension of a dd Model beyond the Search Radius

Vector of Names of Standard Models

Vector of Names of Models Available for Grid Layout

Vector of Names of Models with Natural Offset

List of Names of the Distribution Parameters Associated with Respective Models

Calculate posterior distribution of M and extract statistics (M* and CI)

Utility Function for Constructing Offsets for GLMs

Internal Utility Function to Parse and Format Model for Calculating psihat

Format a Search Layout into Rings for Analysis

An Ordering of the Models by Degree of the Polynomial

Print S3 Objects in dwp Package

Simple Utility Function Used in Optimizing the GLM

Vector of Line Types Used in Graphs of Fitted Models

Create a Data Structure or Map for the Site Layout

Section of Code that Serves No Purpose but for Package to Pass CRAN Check

Vector of GLM Offsets for Available Models

Constraints on GLM Coefficients for Extensibility to a Distribution

Test Criteria for Model Selection within Search Area

Test Criteria for Model Selection

Check Parameter Value Validity the Distribution

Check Whether GLM Coefficients Give Proper Distribution

Simple Function to Extract Carcass Counts

Incomplete Gamma Function

Convert GLM Coefficients into Named Distribution Parameters

Display a Tables of Summary Statistics for Distance Distributions

Subset a Set of Fitted Dispersion Models (ddArray)

Default Graphics Parameters

Subset Simulated Dispersion Parameters while Preserving Attributes

subset.shapeCarcass

Subset Data from an Imported and Formatted Shape File

Locations of All Carcasses in Grid Data

Add Carcasses to a Site Layout

carcass_simple0

Full, Simulated carcass_simple Data Set (Including Locations and Missed Carcasses)

Check validity of format of custom prior for M

Plot dd and ddArray Objects

Probability Distributions for Carcasses Versus Distance from Turbine

Calculate Area of Intersection inside Circle and Square with Common Center

Calculate Akaike Information Criterion (AICc) for Distance Distributions

Simulation of Dispersion Parameters

Calculate CI for CDF, PDF, or quantile

Extract Parameters from a Distance Model (dd) and Format as ddSim Object

Carcass Data to Accompany the Simple Geometry Data Format

constraints_par

Constraints on Parameters to Assure Extensibility

Names of the Named Distributions

carcass_polygon

Example Carcass Distances to Accompany the Polygon Layout Data Set