generateNCI: Generate NCI over space and time

In sylvainschmitt/ecoevosimulator: Eco-evolutionnary simulator

Description

Generate NCI over space and time

Usage

generateNCI(
  grid = 20,
  Nt = 50,
  timestep = 30,
  muNCI = 124,
  sigmaNCI = 26,
  alpha = -1.32,
  beta = 0.003,
  mu = 0.749,
  sigma = 2.651,
  lambda = 0.31,
  d = 3
)

Arguments

grid	int. Number of cells per side of the matrix.
Nt	int. Number of time-steps.
timestep	int. Time-step length in years.
muNCI	double. mu parameter for the normal distribution used for NCI.
sigmaNCI	double. sigma parameter for the normal distribution used for NCI.
alpha	double. Intercept for the Bernoulli distribution determining the risk to have a negative deltaNCI.
beta	double. Slope of previous NCI for the Bernoulli distribution determining the risk to have a negative deltaNCI.
mu	double. mu parameter for the lognormal distribution used for positive deltaNCI.
sigma	double. sigma parameter for the lognormal distribution used for positive deltaNCI.
lambda	double. lambda parameter for the exponential distribution used for negative deltaNCI.
d	int. Spatial auto-correlation size in number of cells.

Value

A data frame with columns Time, X, Y and NCI.

Examples

generateNCI()

sylvainschmitt/ecoevosimulator documentation built on Nov. 19, 2020, 8:04 a.m.