IBM® SPSS® Amos™ 28
Employs Fisher's scoring method in the case of maximum likelihood estimation (Ml), or the Gauss-Newton method in the case of least squares estimation (Uls, Sls, Gls or Adf).
Syntax
object.Fisher (nIterations)
The Fisher method syntax has the following parts:
Part |
Description |
object |
An object of type AmosEngine. |
nIterations |
Upper limit on the number of iterations that will be performed by Fisher's scoring method or the Gauss-Newton method. If Amos has not obtained a solution by the time this limit is reached, the program will revert to the standard Amos algorithm. |
Placement: [1].
Default
Only exact derivatives are used.
Remarks
For some combinations of a model with an estimation method, the Fisher method is highly effective, and may even converge in a single iteration (Kendall & Stuart, 1973, Section 18.21). However, Fisher usually makes Amos slower and less reliable.
See Also
