# Class "theta" for storage of nonlinear parameter estimates

### Description

`theta`

is the class to store parameter estimates associated with
possibly
many datasets; after a call to `fitModel`

a list containing `theta`

objects
for each of the n datasets analyzed in the call to `fitModel`

is
created. To see the parameter estimates
associated with the datasets, examine the object `currTheta`

in the list returned by `fitModel`

### Details

after a call to `fitModel`

, an object of class
`theta`

exists in the global environment as the variable
`currTheta`

### Objects from the Class

Objects can be created by calls of the form `new("theta", ...)`

or
`theta(...)`

.

### Slots

`kinpar`

:Object of class

`"vector"`

of rate constant estimates`specpar`

:Object of class

`"list"`

of spectral shape parameter estimates`irfpar`

:Object of class

`"vector"`

of IRF parameter estimates`parmu`

:Object of class

`"list"`

of parameter estimates describing dispersion of the location of other parameters (in time, temp., etc.)`partau`

:Object of class

`"vector"`

of parameter estimates describing dispersion of the width of other parameters (in time)`clpequ`

:Object of class

`"vector"`

of parameter estimates describing conditionally linear parameters (spectra, in a kinetic model) relations`specdisppar`

:Object of class

`"list"`

of parameter estimates describing dispersion of spectra`kinscal`

:Object of class

`"vector"`

of parameters describing kinetic relations in the context of a compartmental scheme`prel`

:Object of class

`"vector"`

of parameters describing relations between parameters (which may be linear, exponential, etc.)`dummy`

:Object of class

`"list"`

of dummy parameters which can be used in complex relations`eigenvaluesK`

:Object of class

`"vector"`

containing the eigenvalues of the kinetic transfer matrix K`coh`

:Object of class

`"vector"`

of parameters describing a coherent artifact or pulse follower.`drel`

:Object of class

`"vector"`

of parameters describing relations between datasets (linear, and possibly per-wavelength or, in general, per-clp)- amplitudes
- amps
- anipar
- cohirf
- jvec
- kin2scal
- kinpar2
- kinscalspecial
`oscpar`

:Object of class

`"vector"`

of parameters describing oscillation parameters. The length depends on the type of oscillation and the number of oscillations.- peakpar
- shift

### Author(s)

Katharine M. Mullen, Ivo H. M. van Stokkum, Joris J. Snellenburg, Sergey P. Laptenok

### See Also

`fitModel `

, `multitheta-class`