模型验证基础知识
估计模型后，您可以验证它是否在可接受的边界内重现系统行为。然后，您可以在模型细化和验证之间进行迭代，直到找到最能捕获系统动态特性的最简单模型。
主题
- Validating Models After Estimation
Introduction to validating models and supported model plots.
- Refine Linear Parametric Models
Procedures for refining model parameters after estimating a model or constructing the model with initial parameter guesses.
- Refine Initial ARMAX Model at Command Line
This example shows how to estimate an initial model and refine it using
pem. - Refine ARMAX Model with Initial Parameter Guesses at Command Line
This example shows how to refine models for which you have initial parameter guesses.
疑难解答
Troubleshooting Model Estimation
Adjust your modeling strategy based on model-validation results.
Resolve Fit Value Differences Between Model Identification and compare Command
This example shows how NRMSE fit values computed by model identification functions and by the compare function can differ because of differences in initial conditions and prediction horizon settings.
