Description Usage Arguments Details Value Examples
View source: R/AreaEstimator.R
Estimate the area of multiple overlapping ellipses
1  areaEstimator(sitemap, fieldarea, precision = 1000)

sitemap 
a matrix with sites per row and columns:

fieldarea 
vector with dimensions of field surveyed in km: 
precision 
how many dots will be projected of field. Total dots equal 
This function will estimate the area occupied by sites (ellipses) in a rectangular
field, taking into consideration the fact that sites can overlap. It is formatted to be used inside
fieldMap()
.
This function is a cookiecutter area estimator, given the complexities of calculating the real areas of overlapping ellipses. It projects N x N equally spaced dots in the survey field and calculates the ratio of how many of them fall inside at least one site (ellipse). Using a precision of 1000 x 1000 dots, it approximates area to within 0.1% of real area.
The rate of points that are inside at least one ellipse divided by all points projected in the area.
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