Variabili del workspace e file MAT
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.