PhotoEstimate: Produce replicate-specific photo count estimates.
In USFWS/AKaerial: Analysis of Alaska Region Aerial Survey Data
View source: R/PhotoEstimate.R
PhotoEstimate R Documentation
Produce replicate-specific photo count estimates.
Description
Produce replicate-specific photo count estimates for transect-based photo count surveys.
Usage
PhotoEstimate(data, total.area, M)
Arguments
data
An R data frame of photo counts and areas. Needs a minimum structure with columns rep, transect, count, and area.
total.area
The size of the study area to extrapolate density over.
M
The maximum possible transects through the study area (used in variance calculation)
Details
This function takes a data set of photos and associated automated or manual counts and
produces an estimate across transects at the replicate level.
Value
A list of 2 objects: rep_summary for information regarding the variance, and est for the estimate by replicate.
Author(s)
Charles Frost, charles_frost@fws.gov
USFWS/AKaerial documentation built on April 3, 2025, 4:06 p.m.
R Package Documentation
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View source: R/PhotoEstimate.R
| PhotoEstimate | R Documentation |
Produce replicate-specific photo count estimates.
Description
Produce replicate-specific photo count estimates for transect-based photo count surveys.
Usage
PhotoEstimate(data, total.area, M)
Arguments
data |
An R data frame of photo counts and areas. Needs a minimum structure with columns rep, transect, count, and area. |
total.area |
The size of the study area to extrapolate density over. |
M |
The maximum possible transects through the study area (used in variance calculation) |
Details
This function takes a data set of photos and associated automated or manual counts and produces an estimate across transects at the replicate level.
Value
A list of 2 objects: rep_summary for information regarding the variance, and est for the estimate by replicate.
Author(s)
Charles Frost, charles_frost@fws.gov
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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