getpar

Extracts parameters of a particular type (scale,
shape, adjustments or g0 (p(0))) from the vector of parameters in
<code>ddfobj</code>. All of the parameters are kept in a single vector for
optimization even though they have very different uses. <code>assign.par</code>
parses them from the vector based on a known structure and assigns them into
<code>ddfobj</code>. <code>getpar</code> extracts the requested types to be extracted
from <code>ddfobj</code>.

utility

Animal abundance estimation via conventional, multiple covariate
and mark-recapture distance sampling (CDS/MCDS/MRDS). Detection function
fitting is performed via maximum likelihood. Also included are diagnostics
and plotting for fitted detection functions. Abundance estimation is via a
Horvitz-Thompson-like estimator.

Laura Marshall

mrds

Mark-Recapture Distance Sampling

getpar function

<dl><dt>ddfobj</dt>
<dd>distance sampling object (see <code>create.ddfobj</code>)</dd>
<dt>fitting</dt>
<dd>character string which is either "all","key","adjust" which
determines which parameters are retrieved</dd>
<dt>index</dt>
<dd>logical that determines whether parameters are returned (FALSE)
or starting indices in parameter vector for scale, shape, adjustment
parameters</dd></dl>

Arguments

Author

Extraction and assignment of parameters to vector — getpar

<dl>

<dt>ddfobj</dt>
<dd>distance sampling object (see <code>create.ddfobj</code>)</dd>


<dt>fitting</dt>
<dd>character string which is either "all","key","adjust" which
determines which parameters are retrieved</dd>


<dt>index</dt>
<dd>logical that determines whether parameters are returned (FALSE)
or starting indices in parameter vector for scale, shape, adjustment
parameters</dd>

</dl>

getpar: Extraction and assignment of parameters to vector

Description

Usage

Value

Arguments

Author

See Also