GVFC: Calculates the raw Visual Fast Count (VFC) estimator of the...
In emon: Tools for Environmental and Ecological Survey Design
Description
Usage
Arguments
Value
Author(s)
References
See Also
Description
The function considers the counts per segment and uses them sequentially until d positive counts
are obtained or until all s segments have been considered. If we assume that u counts are used (of
which some may be zero) then
the visual fast count estimator is the mean over the u counts multiplied by s. This function is used
by GVFCMOM to obtain the method of moments VFC estimator - which has reduced bias compared to the
raw VFC estimator.
Usage
1
GVFC(counts, s, d)
Arguments
counts
Vector of length s that contains a count for each segment
s
Number of segments
d
Number of positive segment counts needed before counting stops
Value
The raw VFC estimate of the segment mean
Author(s)
Jon Barry: jon.barry@cefas.co.uk
References
Barry J, Eggleton J, Ware S and Curtis M (2015) Generalizing Visual Fast Count Estimators for Underwater
Video Surveys. Ecosphere.
http://www.esajournals.org/doi/full/10.1890/ES15-00093.1
See Also
emon documentation built on May 2, 2019, 6:02 p.m.
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Description Usage Arguments Value Author(s) References See Also
Description
The function considers the counts per segment and uses them sequentially until d positive counts
are obtained or until all s segments have been considered. If we assume that u counts are used (of
which some may be zero) then
the visual fast count estimator is the mean over the u counts multiplied by s. This function is used
by GVFCMOM to obtain the method of moments VFC estimator - which has reduced bias compared to the
raw VFC estimator.
Usage
1 | GVFC(counts, s, d)
|
Arguments
counts |
Vector of length s that contains a count for each segment |
s |
Number of segments |
d |
Number of positive segment counts needed before counting stops |
Value
The raw VFC estimate of the segment mean
Author(s)
Jon Barry: jon.barry@cefas.co.uk
References
Barry J, Eggleton J, Ware S and Curtis M (2015) Generalizing Visual Fast Count Estimators for Underwater Video Surveys. Ecosphere. http://www.esajournals.org/doi/full/10.1890/ES15-00093.1
See Also
R Package Documentation
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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