Variabili del workspace e file MAT

Gestire i dati nel workspace di MATLAB^®

Il workspace contiene variabili create dall'utente o importate in MATLAB da file di dati o da altri programmi. È possibile visualizzare e modificare i contenuti del workspace nel browser del workspace o nella finestra di comando. Per maggiori informazioni, vedere Create and Edit Variables.

Le variabili del workspace non vengono conservate quando si esce da MATLAB. Per utilizzare i dati tra più sessioni, salvarli in un file compresso con estensione .mat, chiamato file MAT. È possibile ripristinare i dati salvati caricando un file MAT in MATLAB. Per maggiori informazioni, vedere Save and Load Workspace Variables.

Funzioni

`load`	Load variables from file into workspace
`save`	Save variables from workspace to file
`matfile`	Access and change variables in MAT-file without loading file into memory
`disp`	Visualizzare il valore della variabile
`formattedDisplayText`	Capture display output as string (Da R2021a)
`who`	List variables in workspace
`whos`	List variables in workspace, with sizes and types
`clear`	Remove items from workspace, freeing up system memory
`clearvars`	Clear variables from memory
`openvar`	Open workspace variable in Variables editor or other graphical editing tool
`workspace`	Open Workspace browser to manage workspace

Argomenti

Create and Edit Variables
Create, edit, and copy variables in the MATLAB workspace, in the Command Window or using the Workspace browser and Variables editor.
Save and Load Workspace Variables
Save some or all variables in the current workspace and reload the variables later during the current MATLAB session, or during another session.
Display Statistics in the Workspace Browser
For each variable or object, the Workspace browser can display statistics such as the min, max, and mean, when relevant.
Workspace and Variable Preferences
Set preferences for the Workspace browser and Variables editor.
MAT-File Versions
There are several versions of MAT-files that each support an increasing set of features, starting with MAT-file Version 4.
Compare and Merge MAT-Files
View and merge changes between two MAT-files.

Risoluzione dei problemi

Unexpected Results When Loading Variables Within a Function

If you have a function that loads data from a MAT-file and find that MATLAB does not return the expected results, check whether any variables in the MAT-file share the same name as a MATLAB function.

Informazioni complementari

File MAT di grandi dimensioni