MAT file save and load in MATLAB - Mini Project: Build & Apply

MAT file save and load

📖 Scenario: You are working with MATLAB to save and load data for a small project. You want to store some variables in a MAT file and then load them back later to use.

🎯 Goal: Learn how to save variables to a MAT file and load them back in MATLAB.

📋 What You'll Learn

Create variables with exact values

Save variables to a MAT file named data.mat

Load variables from the MAT file

Display the loaded variables

💡 Why This Matters

🌍 Real World

Saving and loading data is common when working on projects that need to store results or share data between sessions.

💼 Career

MATLAB users in engineering, data science, and research often save and load data to manage experiments and analyses efficiently.

1

Create variables

Create a variable called age with the value 25 and a variable called name with the value 'Alice'.

MATLAB

% Your code here

Need a hint?

Use = to assign values. Strings use single quotes in MATLAB.

2

Save variables to MAT file

Save the variables age and name to a MAT file named data.mat using the save command.

MATLAB

age = 25;
name = 'Alice';
% Your code here

Need a hint?

Use save('filename', 'var1', 'var2') to save variables.

3

Clear variables and load from MAT file

Clear the variables age and name from the workspace using clear. Then load the variables back from data.mat using the load command.

MATLAB

age = 25;
name = 'Alice';
save('data.mat', 'age', 'name');
% Your code here

Need a hint?

Use clear var1 var2 to remove variables. Use load('filename') to load variables.

4

Display loaded variables

Display the values of age and name using disp commands.

MATLAB

age = 25;
name = 'Alice';
save('data.mat', 'age', 'name');
clear age name;
load('data.mat');
% Your code here

Need a hint?

Use disp(variable) to show the value of a variable.