make.logtrans {CollocInfer}  R Documentation 
Log Transforms
Description
Functions to modify liklihood, transform, lik
and proc
objects so that the operate with the state defined on a log scale.
Usage
make.logtrans()
make.exptrans()
make.logstate.lik()
make.exp.Cproc()
make.exp.Dproc()
Details
All functions require more
to specify the original object (ODE right hand side functions,
definitions of lik
and proc
objects).
Value
A list of functions that calculate log transforms and derivatives in various contexts.
make.logtrans 
modifies the right hand side of a differential equation and its derivatives for a loged state vector. 
make.exptrans 
modfies a map from states to observations to a map from logged states to observations along with its derivatives. 
make.logstate.lik 
modifies a 
make.exp.Cproc 

make.exp.Dproc 

See Also
LS.setup
, make.Cproc
, make.Dproc
Examples
# Model the log of an SEIR process
proc = make.SSEproc()
proc$more = make.logtrans()
proc$more$more = make.SEIR()
# Observe a linear combination of
lik = make.logstate.lik()
lik$more = make.SSElik()
lik$more$more = make.genlin()
# SEIR Model with multivariate transition densities
proc = make.exp.Cproc()
proc$more = make.multinorm()
proc$more$more = c(make.SEIR(),make.cvar())
[Package CollocInfer version 1.0.4 Index]