R Program to Replace Substring in a String

Author:

📘 Premium Read: Access my best content on Medium member-only articles — deep dives into Java, Spring Boot, Microservices, backend architecture, interview preparation, career advice, and industry-standard best practices.

🎓 Top 15 Udemy Courses (80-90% Discount): My Udemy Courses - Ramesh Fadatare — All my Udemy courses are real-time and project oriented courses.

▶️ Subscribe to My YouTube Channel (176K+ subscribers): Java Guides on YouTube

▶️ For AI, ChatGPT, Web, Tech, and Generative AI, subscribe to another channel: Ramesh Fadatare on YouTube

1. Introduction

Replacing a substring within a string is a common operation in string manipulation. In R, the function gsub() can be employed to replace all occurrences of a pattern (substring) with a replacement string. In this tutorial, we will explore how to utilize the gsub() function to replace substrings in a string.

2. Program Overview

The program will:

1. Define a string.

2. Specify the substring to be replaced and its replacement.

3. Use the gsub() function to replace the substring.

4. Display the modified string.

3. Code Program

# Define the original string original_string <- "I love blue skies and blue oceans." # Specify the substring to be replaced and its replacement substring_to_replace <- "blue" replacement_string <- "clear" # Replace the substring using the gsub() function modified_string <- gsub(substring_to_replace, replacement_string, original_string) # Display the modified string print(modified_string)

Output:

[1] "I love clear skies and clear oceans."

4. Step By Step Explanation

1. We start by defining an "original_string" that contains the text "I love blue skies and blue oceans.".

2. Next, we define the "substring_to_replace", which in this case is "blue", and its "replacement_string", which is "clear".

3. The gsub() function is employed to replace all occurrences of the specified substring in the original string. The first argument to gsub() is the substring to search for, the second argument is the replacement string, and the third argument is the string in which the replacements are to be made.

4. The modified string, after replacements, is stored in the "modified_string" variable.

5. Finally, the print() function is used to display the result, which is "I love clear skies and clear oceans.".

The gsub() function is a versatile tool in R for string manipulation. Apart from replacing substrings, it can also work with regular expressions for more complex pattern matching and replacements.

Related R Programs with Output and Step-By-Step Explanation:

R Program to Print Hello World R Program to Add Two Numbers R Program to Subtract Two Numbers R Program to Multiply Two Numbers R Program to Divide Two Numbers R Program to Calculate Remainder R Program to Check if a Number is Even or Odd R Program to Find Maximum of Two Numbers R Program to Find Minimum of Two Numbers R Program to Calculate Factorial of a Number R Program to Print Fibonacci Sequence R Program to Check Prime Number R Program to Calculate the Area of a Circle R Program to Calculate the Area of a Rectangle R Program to Calculate the Area of a Triangle R Program to Convert Celsius to Fahrenheit R Program to Convert Fahrenheit to Celsius R Program to Find Roots of Quadratic Equation R Program to Perform Matrix Multiplication Steps to Run R Program in RStudio R Program to Reverse a String R Program to Calculate String Length R Program to Count Vowels and Consonants in a String R Program to Find the Largest Element in a Vector R Program to Sort Elements of a Vector R Program to Implement Bubble Sort R Program to Implement Selection Sort R Program to Implement Insertion Sort R Program to Search an Element in a Vector using Binary Search R Program to Calculate Standard Deviation R Program to Generate Random Numbers R Program to Perform Linear Regression R Program to Create a Histogram R Program to Create a Boxplot R Program to Create a Scatterplot R Program to Perform String Concatenation R Program to Replace Substring in a String R Program to Split a String into Words R Program to Convert Uppercase to Lowercase R Program to Convert Lowercase to Uppercase R Program to Implement Simple Calculator R Program to Calculate Power of a Number R Program to Check if a Number is Positive, Negative or Zero R Program to Generate Prime Numbers up to N R Program to Check for Armstrong Number R Program to Find GCD of Two Numbers R Program to Find LCM of Two Numbers R Program to Display Date and Time R Program to Get Input from User R Program to Concatenate Two Vectors R Program to Check if an Element Exists in a Vector R Program to Remove Duplicates from a Vector R Program to Implement Stack R Program to Implement Queue R Program to Find Sum of Vector Elements R Program to Merge Two Dataframes R Program to Rename Columns in a Dataframe R Program to Add Rows to a Dataframe R Program to Add Columns to a Dataframe R Program to Drop Rows from a Dataframe R Program to Drop Columns from a Dataframe R Program to Convert a List to a Vector R Program to Convert a Vector to a List

Comments

Post a Comment

Leave Comment

Spring Boot 3 Paid Course Published for Free
on my Java Guides YouTube Channel

Subscribe to my YouTube Channel (165K+ subscribers):
Java Guides Channel

Top 10 My Udemy Courses with Huge Discount:
Udemy Courses - Ramesh Fadatare