データの表現

データの測定または生成、GUI でのインポートまたはデータオブジェクトを使った表現、複素数データの操作

関数

`timetable`	タイムスタンプ付きの行と、異なる型の変数をもつ timetable 配列
`iddata`	時間領域または周波数領域のシステム同定用の入出力データとそのプロパティ
`idfrd`	Frequency response data or model
`idinput`	Generate input signals to support system identification
`sim`	Simulate response of identified model
`size`	入力-出力モデルの出力/入力/配列の次元、および FRD モデルの周波数の数を照会

midprefs Specify location for file containing System Identification app startup information

simOptions Option set for sim

Iddata Sink	シミュレーションデータを `iddata` オブジェクトとして MATLAB ワークスペースにエクスポート
Iddata Source	Import time-domain data stored in `iddata` object in MATLAB workspace

Import Time-Domain Data into the App
Import time-domain data into the System Identification app.
Import Frequency-Domain Data into the App
Import frequency-domain input-output data and frequency-response data into the System Identification app.
Import Data Objects into the App
Import iddata and idfrd data objects.
Data Domains and Data Types in System Identification Toolbox
System Identification Toolbox™ accepts timetables, numeric matrices, and data objects for model estimation in the time and frequency domains.
Convert SISO Matrix Data to Timetable
Convert matrix-based SISO estimation data to timetables for model identification.
連続時間モデルを推定するために MIMO 行列データを timetable に変換
最初に行列ベースのデータを timetable に変換して連続時間 MIMO モデルを推定する。
Generate Data Using Simulation
Creating input data with specific characteristics and simulating the output data from a model.

Representing Data in MATLAB Workspace
Represent time-domain, time-series, and frequency-domain data.
Requirements on Data Sampling
The toolbox provides limited support for nonuniformly sampled data.
Specifying the Data Sample Time
Specify time between successive data samples.
Managing Data in the App
You can get information about each data set in the System Identification app by right-clicking the corresponding data icon.
Representing Time- and Frequency-Domain Data Using iddata Objects
Using the iddata constructor to represent time-domain and frequency-domain data and working with iddata objects.
Managing iddata Objects
The iddata object stores time-domain data or frequency-domain data and has several properties that specify the time or frequency values. To modify the time or frequency values, you must change the corresponding property values.
Representing Frequency-Response Data Using idfrd Objects
Using the idfrd constructor to represent frequency-response data and working with idfrd objects.
Manipulating Complex-Valued Data
Supported operations and limitations for handling complex data and commands for manipulating complex signals.