选择用于估计的数据
选择数据子集，指定估计和验证数据
函数
fselect | 选择 FRD 模型中的频率点或频率范围 |
getexp | 从多试验数据集中获取特定试验 |
merge (iddata) | 将数据集合并为 iddata 对象 |
fcat | 沿频率维度串联 FRD 模型 |
主题
- 在 App 中指定估计和验证数据
为获得最佳验证结果，您应使用不同的数据集来估计和验证模型。
- Select Subsets of Data
Select portions of data for identification in the app or at the command line.
- Create Data Sets from a Subset of Signal Channels
You can create a new data set in the System Identification app by extracting subsets of input and output channels from an existing data set.
- Create Multiexperiment Data Sets in the App
You can create a time-domain or frequency-domain data set in the System Identification app that includes several experiments.
- Create Multiexperiment Data at the Command Line
You can create
iddataobjects that contain several experiments. - Dealing with Multi-Experiment Data and Merging Models
This example shows how to deal with multiple experiments and merge models when working with System Identification Toolbox™ for estimating and refining models.
