Stick: Broken stick

In ajrominger/pika: Tools for macroecology

Broken stick

Description

dstick gives the probability mass function, pstick gives the cumulative mass function, qstick the quantile function, rstick randome number generation

Usage

dstick(x, r, log = FALSE)

pstick(q, r, lower.tail = TRUE, log = FALSE)

qstick(p, r, lower.tail = TRUE, log = FALSE)

rstick(n, r)

Arguments

x	vector of integers for which to return the probability
r	parameter of the broken stick model, see Details
log	logical, should the log probability be used
q	vector of integers for which to return the cumulative probability
lower.tail	logical, should the lower tail be used
p	vector of probabilities for which to return the quantile
n	number of random replicates

Details

These functions assume infinite support of the Broken stick model from [1, Inf). Parameter r corresponds roughly to the probability of dividing the resource, but really should be interpreted in terms of the underlying PMF: (1-r)^{x-1}r

Value

A numeric vector of length equal to the input

Author(s)

Andy Rominger <[e-mail]>

See Also

fitSAD, dgeom

Examples

dstick(1:10, 0.5)

ajrominger/pika documentation built on Nov. 13, 2022, 8:22 a.m.