String replacement in MATLAB - Mini Project: Build & Apply

String replacement

📖 Scenario: You work in a small publishing company. You have a text with some outdated words that need to be replaced with new ones before printing.

🎯 Goal: You will create a MATLAB program that replaces specific words in a text string with new words using string replacement.

📋 What You'll Learn

Create a string variable with the exact given text

Create a variable for the word to find

Use the replace function to replace the word

Print the updated string

💡 Why This Matters

🌍 Real World

Replacing outdated or incorrect words in text documents before publishing.

💼 Career

Useful for roles in data cleaning, text processing, and software that handles user content.

1

Create the original text string

Create a string variable called originalText with the exact value: 'The colour of the sky is blue.'

MATLAB

% Create the string variable originalText with the given sentence
% Your code here

Need a hint?

Use single quotes to create a string in MATLAB.

2

Create the word to find

Create a string variable called wordToFind and set it to 'colour'.

MATLAB

originalText = 'The colour of the sky is blue.';
% Create the variable wordToFind with the value 'colour'
% Your code here

Need a hint?

Remember to use single quotes for strings in MATLAB.

3

Replace the word in the text

Create a new string variable called updatedText by replacing wordToFind in originalText with 'color' using the replace function.

MATLAB

originalText = 'The colour of the sky is blue.';
wordToFind = 'colour';
% Replace wordToFind with 'color' in originalText and store in updatedText
% Your code here

Need a hint?

The syntax is replace(originalString, oldWord, newWord).

4

Display the updated text

Use disp to print the updatedText variable.

MATLAB

originalText = 'The colour of the sky is blue.';
wordToFind = 'colour';
updatedText = replace(originalText, wordToFind, 'color');
% Display the updatedText
% Your code here

Need a hint?

Use disp(variable) to show the string in MATLAB.