proba_ext: Compute the probability of extinction for a given alpha
In reconhub/branchr: R Estimation from Cluster Sizes
Description
Usage
Arguments
Value
Author(s)
Examples
Description
If the transmission can be charaterised by a Poisson offspring distribution, see the function
alpha.poisson(R) to compute alpha for a given R.
The probability of extinction is computed assuming a single initial case. To obtain the probability
extinction associated with n initial case, simply raise the probability returned by this function to the power of n.
Usage
1
proba_ext(alpha)
Arguments
alpha:
a value related to the reproduction number and the offspring distribution.
Value
The function returns the probability of extinction for a given alpha. Formally, Pext=exp(-alpha)
Author(s)
Pierre Nouvellet (p.nouvellet@imperial.ac.uk)
Examples
1
2
x <- proba.ext(c(.5,1))
x
reconhub/branchr documentation built on May 27, 2019, 4:01 a.m.
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Description Usage Arguments Value Author(s) Examples
Description
If the transmission can be charaterised by a Poisson offspring distribution, see the function alpha.poisson(R) to compute alpha for a given R. The probability of extinction is computed assuming a single initial case. To obtain the probability extinction associated with n initial case, simply raise the probability returned by this function to the power of n.
Usage
1 | proba_ext(alpha)
|
Arguments
alpha: |
a value related to the reproduction number and the offspring distribution. |
Value
The function returns the probability of extinction for a given alpha. Formally, Pext=exp(-alpha)
Author(s)
Pierre Nouvellet (p.nouvellet@imperial.ac.uk)
Examples
1 2 | x <- proba.ext(c(.5,1))
x
|
R Package Documentation
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