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.
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