heteroPopTransmission: Simulating Frequency-Biased Cultural Transmission with an...
In ercrema/HERAChp.KandlerCrema: Cultural Evolutionary Analysis of Frequency Data

Description Usage Arguments Details Value

Simulates unbiased/frequency-biased transmission with the bias parameter of each individual randomly drawn from a normal distribution with user-defined mean and standard deviation.

1 2	heteroPopTransmission(N = 500, timesteps = 301, mu = 0.01, bmean = 0, bsd = 0)

`N`	Number of individuals.
`timesteps`	Number of generations (timesteps).
`mu`	Innovation rate.
`bmean`	Mean of the frequency bias parameter b.
`bsd`	Standard deviation of the frequency bias parameter b.

The function simulates cultural transmission within a population of heterogenous learners, each with a different levels of frequency bias at each generation. More formally the probability of an individual $x$ copying a variant $i$ is given by the following equation.

π_i=\frac{≤ft(\frac{m_i}{N}\right)^{1-β_x}}{∑\limits_{j=1}^k ≤ft(\frac{m_j}{N}\right)^{1-β_x}}(1-μ)

where β_x is randomly drawn from a normal distribution with mean bmean and standard deviation bsd.

A vector containing the Simpson's diversity index at each timestep/generation.

ercrema/HERAChp.KandlerCrema documentation built on May 6, 2019, 6:57 p.m.