Simulink.io.MatFile Class

Namespace: Simulink.io

Read data in MAT file format

Since R2021a

Description

Simulink.io.MatFile inherits from the Simulink.io.FileType base class. The class reads data formatted in a format used by MAT files. To import data from a MAT file, use this class.

classdef MatFile < Simulink.io.FileType

The Simulink.io.MatFile class is a handle class.

Class Attributes

Abstract	false
HandleCompatible	true

For information on class attributes, see Class Attributes.

Properties

iofile.STAMatFile — MAT file reader

character array

MAT file reader, specified as a character array.

Attributes:

GetAccess	public
SetAccess	public

Data Types: char | string

Methods

Specialized Operators and Functions

These methods specialize standard MATLAB^® operators and functions for objects in this class.

isFileSupported	This method always returns true because it operates only on data in the MAT file.
getFileTypeDescription	This method returns the MAT file reader description for MAT files containing data with loading and logging signal formats that Simulink® supports.

Examples

Read Data in MAT File Format

Read data in MAT file format from the file foo.mat.

fileName = 'foo.mat';
aReader = Simulink.io.MatFile(fileName);
resultOfWhos = whos(aReader);

Load the reader, which has no inputs.

varsOnFileStruct = load(aReader);

Load one variable.

var = loadAVariable(aReader,'ts');

Import all the variables from the MAT file, foo.mat.

importedVars = import(aReader);

Export the dataset to a MAT file named bar.mat.

ds = Simulink.SimulationData.Dataset;
ds = ds.addElement(timeseries([1:10]',[1:10]'),'Signal1');
ds = ds.addElement(timeseries([1:10]',[11:20]'),'Signal2');
ds = ds.addElement(timeseries([1:10]',[21:30]'),'Signal3');

filePath = 'bar.mat';
didWrite = aReader.export(filePath,{'ds'},{ds},0);

Version History

Introduced in R2021a