View source: R/Math-Functions.R
periodic_cov | R Documentation |
Periodic function used to compute the variance-covariance matrix of the fields of the landscape.
periodic_cov(d, range, phi = 1)
d |
a numeric object containing pairwise distances between the centroids of the fields |
range |
range (half-period of oscillations) |
phi |
amplitude of the oscillations |
The periodic covariance is defined by exp(-2 * sin(d*pi/(2*range))^2 / phi^2)
. It is used to generate
highly fragmented or highly aggregated landscapes.
An object of the same type as d.
multiN
periodic_cov(10, range = 5)
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