generate_landscape: Generate a Random Carrying Capacity Landscape

In rdinnager/nichefillr: Niche Filling Simulations in R

Description

Function to generate a random carrying capacity landscape obeying certain constraints. It distributes peaks uniformly within an N-ball, which is approximated by the overall Super-gaussian multiplier distribution. Peak heights and widths are chosen to satisfy a particular ration and to add up to the total desired niche 'volume'.

Usage

generate_landscape(potent_vol = 1, total_vol = 1, num_peaks = 6,
  h_to_sig_ratio = 2, P_min_max = c(0.9, 1.1), dirichlet_param = 1.5,
  d = 2, P = 8, a_prop = 0.01)

Arguments

potent_vol	Total potential volume of the entire landscape.
total_vol	Total approximate volume of the entire landscape.
num_peaks	Number of fitness peaks to place on the landscape.
h_to_sig_ratio	Ratio of the height of each peak to its width (or sigma value).
P_min_max	Vector of length 2 giving the minimum and maximum peak super-gaussian parameters to use.
dirichlet_param	The alpha parameter of the dircihlet distribution for determining how the volume should be split between the peaks.
d	The number of dimensions of the landscape
P	Super-gaussian parameter for whole landscape multiplier
a_prop	Minimum carrying capacity within the landscape as a proportion of the maximum height

Value

List of parameter values that can be used in the carrying capacity function to generate the landscape

rdinnager/nichefillr documentation built on Dec. 3, 2019, 7:13 a.m.