solvecov

Tries to invert a matrix by <code>solve</code>. If this fails because of
singularity, an eigenvector decomposition is computed, and eigenvalues below
<code>1/cmax</code> are replaced by <code>1/cmax</code>, i.e., <code>cmax</code> will be the
corresponding eigenvalue of the inverted matrix.

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

solvecov function

<dl><dt>m</dt>
<dd>a numeric symmetric matrix.</dd>
<dt>cmax</dt>
<dd>a positive value, see above.</dd></dl>

Arguments

Author

Invert of covariance matrices — solvecov

<dl>

<dt>m</dt>
<dd>a numeric symmetric matrix.</dd>


<dt>cmax</dt>
<dd>a positive value, see above.</dd>

</dl>

solvecov: Invert of covariance matrices

Description

Usage

Value

Arguments

Author

See Also