Course

Additional

Find the Statistical Mode Write to a File Format Decimal Places

Data Frames

Convert a List to a Dataframe Create an Empty Dataframe Combine Two Dataframe into One Change Column Name of a Dataframe Extract Columns From a Dataframe Drop Columns in a Dataframe Reorder Columns in a Dataframe Split Dataframe Merge Multiple Dataframes Delete Rows From Dataframe Make a List of Dataframes

Introduction

"Hello World" Program Add Two Vectors Find Sum, Mean and Product of Vector in R Programming Take Input From User Generate Random Number from Standard Distributions Sample from a Population Find Minimum and Maximum Sort a Vector

Strings

Concatenate Two Strings Find the Length of a String Check if Characters are Present in a String Extract n Characters From a String Replace Characters in a String Compare two Strings Convert Factors to Characters Trim Leading and Trailing Whitespaces

Vectors

Concatenate a Vector of Strings Check if a Vector Contains the Given Element Count the Number of Elements in a Vector Find Index of an Element in a Vector Access Values in a Vector Add Leading Zeros to Vector

Decision and Loops

Find the Factorial of a Number R Multiplication Table Check Prime Number check Armstrong Number Print the Fibonacci Sequence Check for Leap Year Check if a Number is Odd or Even in R Programming Check if a Number is Positive, Negative or Zero Find the Sum of Natural Numbers

Functions

Convert Decimal into Binary using Recursion in R Find the Factorial of a Number Using Recursion Find the Factors of a Number Fibonacci Sequence Using Recursion in R Find H.C.F. or G.C.D.Find L.C.M.Make a Simple Calculator Sum of Natural Numbers Using Recursion

R Program to Compare two Strings

Example 1: Using toupper() to Compare Two Strings in R


              
# create two strings
string1 <- "R Programming"
string2 <- "R Programming"

# compare both strings
result <- toupper(string1) == toupper(string2)

print(result)

# Output: [1] TRUE

In the above example, two strings are compared. Here,

The toupper() function converts all the string characters to uppercase.
== is used to check if both the strings are the same.

Note: You can also use the tolower() function to convert all the strings to lowercase and perform the comparison.

Example 2: Compare Two Strings Using identical()


              
str1 <- "Data Science"

str2 <- "Data scientist"

# using identical() to compare two strings
identical(tolower(str1), tolower(str2))

# Output : [1] FALSE

Here, we have passed the identical() function to compare two strings: str1 and str2.

Inside identical(), we have passed two strings and converted to lowercase using tolower().

Since, "Data Science" and "Data Scientist" are two different strings, the method returns FALSE.