options-class: arf3DS4 "options" class

In arf3DS4: Activated Region Fitting, fMRI data analysis (3D).

Description

The arf3DS4 "options" class contains the options of the minimization procedure (including starting value calculation, and (co)variance estimation). Mostly used by ARF "model" objects (see model).

Objects

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

Slots

nlm.gradtol:

<nlm> Gradient tolerance (not used).

nlm.steptol:

<nlm> Step tolerance (not used).

opt.method:

<optim> Optim method (L-BFGS-B).

opt.lower:

<optim> Lowerbound of parameters (for L-BFGS-B).

opt.upper:

<optim> Upperbound of parameters (for L-BFGS-B).

min.analyticalgrad:

Use analytical gradient in minimization?

min.iterlim:

Iteration limit.

min.boundlim:

Persistent Boundary iteration limit.

min.routine:

Minimization routine (optim).

start.method:

Method of startingvalue calculation ('use','load',or 'rect')

start.maxfac:

Width of smoothing kernel used in starting value calculation.

start.vector:

Starting value template (used for default values).

chk.method:

Check method for parameters of minimized solution.

chk.range:

Range of values to check parameters of minimized solution.

sw.type:

Use diagonal residual matrix or full residual matrix in sandwich (co)variance calculation.

output.mode:

Vector with output types ('none' or 'progress').

version:

Object of class "version" (see version)

Methods

Standard arf3DS4 accessor and replacement functions can be used to access and replace slots.

access

.classname.slotname(object)

replace

.classname.slotname(object)<-

In this case classname is "options" and slotname is for example "sw.type". So to access the "sw.type" slot of an r-object "myoptions" (of class "options") type .options.sw.type(myoptions).

Author(s)

Wouter D. Weeda - [e-mail]

See Also

model

Examples

showClass("options")

arf3DS4 documentation built on May 2, 2019, 5:16 p.m.