Reshaping arrays in MATLAB - Mini Project: Build & Apply

Reshaping arrays

📖 Scenario: You are working with a small dataset of daily temperatures recorded in a week. The data is currently in a single row, but you want to organize it into a matrix that shows temperatures for each day in a more readable way.

🎯 Goal: You will reshape a 1D array of temperatures into a 2D matrix with 2 rows and 4 columns to better visualize the data.

📋 What You'll Learn

Create a 1D array called temps with the exact values: 22, 24, 19, 23, 25, 21, 20, 22

Create a variable called rows and set it to 2

Use the reshape function to reshape temps into a matrix called tempMatrix with rows rows and 4 columns

Display the tempMatrix using disp

💡 Why This Matters

🌍 Real World

Reshaping arrays is useful when you want to organize data differently for analysis or visualization, like turning a list of daily measurements into a table format.

💼 Career

Many jobs in data analysis, engineering, and science require reshaping data arrays to prepare data for calculations, graphs, or reports.

1

Create the temperature array

Create a 1D array called temps with these exact values: [22, 24, 19, 23, 25, 21, 20, 22]

MATLAB

% Create the temperature array
% Your code here

Need a hint?

Use square brackets [] to create the array and separate values with commas.

2

Set the number of rows

Create a variable called rows and set it to 2

MATLAB

temps = [22, 24, 19, 23, 25, 21, 20, 22];
% Set the number of rows
% Your code here

Need a hint?

Just assign the number 2 to the variable rows.

3

Reshape the array into a matrix

Use the reshape function to reshape temps into a matrix called tempMatrix with rows rows and 4 columns

MATLAB

temps = [22, 24, 19, 23, 25, 21, 20, 22];
rows = 2;
% Reshape temps into tempMatrix
% Your code here

Need a hint?

The reshape function takes the array, number of rows, and number of columns as arguments.

4

Display the reshaped matrix

Use disp to display the variable tempMatrix

MATLAB

temps = [22, 24, 19, 23, 25, 21, 20, 22];
rows = 2;
tempMatrix = reshape(temps, rows, 4);
% Display tempMatrix
% Your code here

Need a hint?

Use disp(tempMatrix) to show the matrix in the command window.