generate_landscape: Generate a Random Carrying Capacity Landscape

Description Usage Arguments Value

View source: R/landscape_gen.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

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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 March 19, 2018, 7:02 a.m.