User`s guide

32 System Identification Toolbox 5.0.1 Release Notes
32-2
Upgrading from an Earlier Release
There is one new upgrade issue involved in moving from the System
Identification Toolbox 5.0 to the System Identification Toolbox 5.0.1.
Syntax of data Function
The syntax
data{...}
is no longer supported. Use the functions getexp or merge iddata instead.
Note The following upgrade issue is involved in moving from System
Identification Toolbox 4.0.5 (Release 11.0) to the System Identification Toolbox
5.0.1.
Theta Models No Longer Supported
Theta models (matrices) are no longer supported in the System Identification
Toolbox 5.0. Existing code that uses functions such as
th2par and th2ss to
access the theta model data will continue to work in the System Identification
Toolbox 5.0. However, if you have code that directly indexes into the theta
matrix (e.g.,
th(1,3)), that code will no longer work.