Return the covariance matrix of the observed variables, given values of the latent states and the parameters.
# S4 method for pomp
vmeasure(object, x, times, params, ...)an object of class ‘pomp’, or of a class that extends ‘pomp’.
This will typically be the output of pomp, simulate, or one of the pomp inference algorithms.
an array containing states of the unobserved process.
The dimensions of x are nvars x nrep x ntimes,
where nvars is the number of state variables,
nrep is the number of replicates,
and ntimes is the length of times.
One can also pass x as a named numeric vector, which is equivalent to the nrep=1, ntimes=1 case.
a numeric vector (length ntimes) containing times.
These must be in non-decreasing order.
a npar x nrep matrix of parameters.
Each column is treated as an independent parameter set, in correspondence with the corresponding column of x.
additional arguments are ignored.
vmeasure returns a rank-4 array of dimensions
nobs x nobs x nrep x ntimes,
where nobs is the number of observed variables.
If v is the returned array, v[,,j,k] contains the
covariance matrix at time times[k] given the state x[,j,k].
Specification of the measurement-model covariance matrix: vmeasure specification
More on pomp workhorse functions:
dmeasure(),
dprior(),
dprocess(),
emeasure(),
flow(),
partrans(),
pomp-package,
rinit(),
rmeasure(),
rprior(),
rprocess(),
skeleton(),
workhorses