rw2 {pomp} | R Documentation |
Two-dimensional random-walk process
Description
rw2
constructs a ‘pomp’ object encoding a 2-D Gaussian random walk.
Usage
rw2(x1_0 = 0, x2_0 = 0, s1 = 1, s2 = 3, tau = 1, times = 1:100, t0 = 0)
Arguments
x1_0 , x2_0 |
initial conditions (i.e., latent state variable values at the zero time |
s1 , s2 |
random walk intensities |
tau |
observation error s.d. |
times |
observation times |
t0 |
zero time |
Details
The random-walk process is fully but noisily observed.
Value
A ‘pomp’ object containing simulated data.
See Also
More examples provided with pomp:
blowflies
,
childhood_disease_data
,
compartmental_models
,
dacca()
,
ebola
,
gompertz()
,
ou2()
,
pomp_examples
,
ricker()
,
verhulst()
Examples
if (require(ggplot2)) {
rw2() |> plot()
rw2(s1=1,s2=1,tau=0.1) |>
simulate(nsim=10,format="d") |>
ggplot(aes(x=y1,y=y2,group=.id,color=.id))+
geom_path()+
guides(color="none")+
theme_bw()
}
[Package pomp version 5.11.0.0 Index]