Option set for
opt = iv4Options
opt = iv4Options(Name,Value)
Specify optional pairs of arguments as
the argument name and
Value is the corresponding value.
Name-value arguments must appear after other arguments, but the order of the
pairs does not matter.
Before R2021a, use commas to separate each name and value, and enclose
Name in quotes.
InitialCondition — Handling of initial conditions
'auto' (default) |
Handling of initial conditions during estimation, specified as one of the following values:
'zero'— The initial condition is set to zero.
'estimate'— The initial condition is treated as an independent estimation parameter.
'auto'— The software chooses the initial condition handling method based on the estimation data.
Advanced — Additional advanced options
Additional advanced options, specified as a structure with the following fields:
MaxSize— Specifies the maximum number of elements in a segment when input-output data is split into segments.
MaxSizemust be a positive integer.
StabilityThreshold— Specifies thresholds for stability tests.
StabilityThresholdis a structure with the following fields:
s— Specifies the location of the right-most pole to test the stability of continuous-time models. A model is considered stable when its right-most pole is to the left of
z— Specifies the maximum distance of all poles from the origin to test stability of discrete-time models. A model is considered stable if all poles are within the distance
zfrom the origin.
Create Default Options Set for ARX Model Estimation Using 4-Stage Instrument Variable Method
opt = iv4Options;
Specify Options for ARX Model Estimation Using 4-Stage Instrument Variable Method
Create an options set for
iv4 using the
'backcast' algorithm to initialize the state. Set
opt = iv4Options('InitialCondition','backcast','Display','on');
Alternatively, use dot notation to set the values of
opt = iv4Options; opt.InitialCondition = 'backcast'; opt.Display = 'on';
Version HistoryIntroduced in R2012a
R2018a: Renaming of Estimation and Analysis Options
The names of some estimation and analysis options were changed in R2018a. Prior names still work.