parmat {pomp} | R Documentation |
Create a matrix of parameters
Description
parmat
is a utility that makes a vector of parameters suitable for
use in pomp functions.
Usage
parmat(params, ...)
## S4 method for signature 'numeric'
parmat(params, nrep = 1, ..., names = NULL)
## S4 method for signature 'array'
parmat(params, nrep = 1, ..., names = NULL)
## S4 method for signature 'data.frame'
parmat(params, nrep = 1, ...)
Arguments
params |
named numeric vector or matrix of parameters. |
... |
additional arguments, currently ignored. |
nrep |
number of replicates (columns) desired. |
names |
optional character; column names. |
Value
parmat
returns a matrix consisting of nrep
copies of
params
.
Author(s)
Aaron A. King
Examples
# takes too long for R CMD check
## generate a bifurcation diagram for the Ricker map
p <- parmat(coef(ricker()),nrep=500)
p["r",] <- exp(seq(from=1.5,to=4,length=500))
trajectory(
ricker(),
times=seq(from=1000,to=2000,by=1),
params=p,
format="array"
) -> x
matplot(p["r",],x["N",,],pch='.',col='black',
xlab=expression(log(r)),ylab="N",log='x')
[Package pomp version 5.11.0.0 Index]