保存仿真的运行时数据

保存仿真数据，如输出、信号、时间、状态和数据存储记录数据

在仿真期间，您可以将仿真数据保存到 MATLAB^® 工作区或文件中，包括 MLDATX 文件、MAT 文件或 Excel^® 文件，以便以后检索和后处理。仿真数据可以是输出、信号、时间、状态和数据存储记录数据的任意组合。

Dataset 格式为各种记录方法所记录的结果提供了一种通用的格式，因此以这种方式保存仿真数据可以简化后期处理。可以使用 Dataset 格式将数据存储为 MATLAB timeseries 或 timetable 对象，以便使用 MATLAB 进行处理。

要确定应该使用哪种方法来记录数据，请参阅保存仿真数据。

模块

Outport	为子系统或外部输出创建输出端口
Record, XY Graph	Log data to the workspace, to a file, or both （自 R2021a 起）
To File	将数据写入到文件
To Workspace	将数据从 Simulink 模型记录到工作区

工具

插桩属性	View and edit logging and visualization properties for logged signal
信号属性	View and edit signal properties
仿真数据检查器	检查并比较数据和仿真结果，以验证和迭代模型设计
Simulink 信号记录选择器	View signal logging configuration and override signal logging settings

函数

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配置信号记录

`Simulink.sdi.markSignalForStreaming`	Turn logging on or off for signal
`Simulink.sdi.getSignalInputProcessingMode`	Get value of Input Processing signal property （自 R2020a 起）
`Simulink.sdi.setSignalInputProcessingMode`	Specify value for Input Processing signal property （自 R2020a 起）

覆盖信号记录设置

`Simulink.SimulationData.ModelLoggingInfo.createFromModel`	Create `Simulink.SimulationData.ModelLoggingInfo` object for top model with override settings for each logged signal in model
`findSignal`	Find index of signals in `Signals` property vector
`setLogAsSpecifiedInModel`	Set logging mode for top model or top-level Model block
`getLogAsSpecifiedInModel`	Determine whether model logs as specified in model or uses override settings
`verifySignalAndModelPaths`	Verify paths in `Simulink.SimulationData.ModelLoggingInfo` object

限制记录的数据大小

配置记录的数据大小限制

`Simulink.sdi.setMaxDiskUsage`	Specify maximum size for data logged to disk （自 R2021a 起）
`Simulink.sdi.getMaxDiskUsage`	Get configured maximum size for data logged to disk （自 R2021a 起）
`Simulink.sdi.setRequiredFreeSpace`	Specify minimum disk space to leave free when logging data （自 R2021a 起）
`Simulink.sdi.getRequiredFreeSpace`	Get configured minimum disk space requirement for logging （自 R2021a 起）
`Simulink.sdi.setDeleteRunsOnLowSpace`	Specify behavior when logged data size approaches configured limits （自 R2021a 起）
`Simulink.sdi.getDeleteRunsOnLowSpace`	Get configured behavior when size of logged data approaches configured limits （自 R2021a 起）
`Simulink.sdi.setRecordData`	Specify record mode for logging （自 R2021a 起）
`Simulink.sdi.getRecordData`	Check record mode for logging （自 R2021a 起）

配置仿真数据检查器存档

`Simulink.sdi.setArchiveRunLimit`	Specify number of runs to retain in Simulation Data Inspector archive
`Simulink.sdi.setAutoArchiveMode`	Specify how Simulation Data Inspector manages simulation runs
`Simulink.sdi.getArchiveRunLimit`	Get limit for number of runs to retain in Simulation Data Inspector archive
`Simulink.sdi.getAutoArchiveMode`	Get Simulation Data Inspector run management mode

配置记录位置

`Simulink.sdi.setStorageLocation`	Specify location for logged data on disk （自 R2021a 起）
`Simulink.sdi.getStorageLocation`	Get path to custom storage location for data logged to disk （自 R2021a 起）
`Simulink.sdi.setStorageMode`	Specify whether to log data to disk or memory （自 R2021a 起）
`Simulink.sdi.getStorageMode`	Check if logging is configured to log data to disk or memory （自 R2021a 起）

处理记录的数据

`extractTimetable`	Extract data from `Simulink.SimulationData.Dataset` or `Simulink.SimulationData.Signal` objects into timetables （自 R2021b 起）
`getAsDatastore`	Get `matlab.io.datastore.SimulationDatastore` representation of element from referenced `Dataset` object
`removeElement`	Remove element from `Simulink.SimulationData.Dataset` object
`Simulink.SimulationData.createStructOfTimeseries`	Create structure of `timeseries` data to load as simulation input for bus
`Simulink.SimulationData.forEachTimeseries`	Apply function to data contained in set of `timeseries` objects
`Simulink.SimulationData.DatasetRef.getDatasetVariableNames`	List names of variables in MAT file that contain `Simulink.SimulationData.Dataset` objects

对象

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访问记录的仿真数据

`Simulink.SimulationOutput`	访问仿真输出和元数据
`Simulink.SimulationMetadata`	Access metadata of simulation runs
`Simulink.SimulationData.Dataset`	Access logged simulation data or group simulation input data
`Simulink.SimulationData.Signal`	Container for signal logging information
`Simulink.SimulationData.State`	State logging element
`Simulink.SimulationData.DatasetRef`	Create `Simulink.SimulationData.DatasetRef` object
`matlab.io.datastore.SimulationDatastore`	Datastore for inputs and outputs of Simulink models
`Simulink.SimulationData.BlockPath`	Fully specified Simulink block path
`Simulink.SimulationData.Unit`	Store units for simulation data
`Simulink.SimulationData.LoggingInfo`	Signal logging override settings
`Simulink.SimulationData.ModelLoggingInfo`	Signal logging override settings for model
`Simulink.SimulationData.SignalLoggingInfo`	Signal logging override settings for signal

模型设置

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指定要记录的数据

时间	Option to log time values for simulation
输出	Option to log data for top-level output ports
状态	Option to log block state values during simulation
信号记录	Option to log data for signals marked for logging in model
数据存储	Option to log data for Data Store Memory blocks
最终状态	Option to log final state values
保存最终工作点	Option to save complete model operating point when simulation is paused or stopped （自 R2019a 起）

指定记录的数据格式

单一仿真输出	Option to return simulation results as single `Simulink.SimulationOutput` object
格式	Format for logged states, output, and final states data
将数据集数据记录到文件	Option to log data that uses `Dataset` format to MAT file
在仿真数据检查器中记录所记录的工作区数据	Option to send data logged in format other than `Dataset` to Data Inspector at end of simulation

指定要记录的值

抽取	对记录的输出、状态和时间数据应用抽取因子的选项
将数据点限制为最后	Option to log only last n data points for outputs, states, and time
记录间隔	Option to specify time intervals in which to log simulation data
输出选项	Options to produce output values at specified times in variable-step simulation
输出时间	Option to specify times for which variable-step simulation produces output values
细化因子	Option to produce additional output values between simulation time steps

主题

仿真数据

保存仿真数据
保存用于分析和调试模型的仿真数据。
View and Access Logged Simulation Data
View and access saved simulation data for a completed or paused simulation.
记录的仿真数据的数据格式
您可以使用许多格式来记录数据，包括 Dataset、MATLAB timeseries、数组和结构体。支持的数据格式因记录方法而异。但是，Dataset 格式可用于所有记录方法。
Log Data to the Workspace and a File Using the Record Block
Use the Record block to log data to the workspace, to a file, or to both the workspace and a file.
Convert Data to Dataset Format
To convert a workspace variable that contains data that was logged in a format other than Dataset format to use Dataset format, use a Simulink.SimulationData.Dataset constructor.
Samples to Export for Variable-Step Solvers
Control how much output the simulation generates when your model uses a variable-step solver. Use the Output options configuration parameter.

信号记录

使用信号记录保存信号数据
通过标记要在模型中记录的信号，从仿真中捕获信号数据。
Override Signal Logging Settings
For a specific simulation run, override the signal logging settings for individual signals marked for logging.
View the Signal Logging Configuration
View the signals that are marked for signal logging.
查看和访问信号记录数据
查看和访问完成或暂停的仿真的信号记录数据。

大数据

Work with Big Data for Simulations
Log, load, and analyze big data for simulations.
Limit the Size of Logged Data
Choose among several strategies to limit the size of logged data.
Specify Signal Values to Log
Specify which signal values to log during simulation.
Log Data to Persistent Storage
Store logged simulation data to persistent storage in a MAT-file.
Analyze Big Data from a Simulation
Access simulation data logged to persistent storage for analysis in MATLAB.

仿真状态

Save Block States and Simulation Operating Points
Learn how you can use state information logged from simulation and decide how to log states and operating points.
Save State Information
Save state information for logged states.