getStartValue

Calculate start values for <code>weightedLikelihood</code> or <code>weightedDistribution</code>.

Post-construction fatality monitoring studies at wind facilities are based on data from searches for bird and bat carcasses in plots beneath turbines. Bird and bat carcasses can fall outside of the search plot. Bird and bat carcasses from wind turbines often fall outside of the searched area. To compensate, area correction (AC) estimations are calculated to estimate the percentage of fatalities that fall within the searched area versus those that fall outside of it. This package provides two likelihood based methods and one physics based method (Hull and Muir (2010) <doi:10.1080/14486563.2010.9725253>, Huso and Dalthorp (2014) <doi:10.1002/jwmg.663>) to estimate the carcass fall distribution. There are also functions for calculating the proportion of area searched within one unit annuli, log logistic distribution functions, and truncated distribution functions.

Daniel Riser-Espinoza

windAC

Area Correction Methods

Paul Rabie

Trent McDonald

getStartValue function

<dl><dt>x</dt>
<dd>Numeric vector of the data observations.</dd>
<dt>distribution</dt>
<dd>String indicating which distribution to use.</dd>
<dt>w</dt>
<dd>Numeric Vector of weights. This is assumed to be in the same order as <code>x</code>. Default is a vector of ones the same length as <code>x</code>.</dd>
<dt>...</dt>
<dd>Currently ignored.</dd></dl>

Arguments

Calculate the start values to be passed to the optimizer. — getStartValue

<dl>

<dt>x</dt>
<dd>Numeric vector of the data observations.</dd>


<dt>distribution</dt>
<dd>String indicating which distribution to use.</dd>


<dt>w</dt>
<dd>Numeric Vector of weights. This is assumed to be in the same order as <code>x</code>. Default is a vector of ones the same length as <code>x</code>.</dd>


<dt>...</dt>
<dd>Currently ignored.</dd>

</dl>

getStartValue: Calculate the start values to be passed to the optimizer.

Description

Usage

Value

Arguments

Details

Examples