Assume that You are employed as a Data Scientist by the World Bank and you are working on a project to analyze the World’s demographic trends. You are required to produce a scatterplot illustrating Birth Rate and Internet Usage statistics by Country. The scatterplot needs to also be categorized by Countries’ Income Group You have …
A data frame is a table or a two-dimensional array-like structure in which each column contains values of one variable and each row contains one set of values from each column. Following are the characteristics of a data frame. The column names should be non-empty. The row names should be unique. The data stored in …
Subsetting in R is a useful indexing feature for accessing object elements. It can be used to select and filter variables and observations. You can use brackets to select rows and columns from your dataframe. subset () function in R Language is used to create subsets of a Data frame. This can also be used …
Matplot Function is useful for quickly plotting multiple sets of observations from the same object, particularly from a matrix, on the same graph. It Plots the columns of one matrix against the columns of another (which often is just a vector treated as 1-column matrix). Syntax: Matplot (x, y, type = “p”, lty = 1:5, …
Scenario: Assume that You are working as a data scientist for a consulting firm E&Y. One of your colleagues from the Auditing department has asked you to help them assess the financial statement of organization. You have been supplied with two vectors of data: monthly revenue and monthly expenses for the financial year. Input: Please …
Can we Name the Rows & Columns in R Matrix? Yes It is possible to name the rows and columns of the matrix during creation with the dimnames argument of the matrix () function Let’s look at this below example: Here I have assigned a Variable my_data to print elements from 1 to 5 and …
If you are confused to use any Functions or operations in R , Just type question Mark and function name , You will get the documentation of the function in Help pane. Creating First matrix : Here we are creating our first Matrix : Variable my_data is created and iam trying to print 1 to …
Matrix is a rectangular arrangement of numbers in rows and columns. In a matrix, as we know rows are the ones that run horizontally, and columns are the ones that run vertically. In R programming, matrices are two-dimensional, homogeneous data structures. These are some examples of matrices: To create a matrix in R you need to …
From the above example: variable xyz is assigned to value 5, here Variables abc and axz prints the five random Numbers. we can see the Output values of abc & axz in the environment Pane. Variable abc contains : -0.876124530, 0.190421711 , 0.006127489, 1.852267401, 0.530870030 Variable axz contains : -1.3806327, -0.7074115 , -1.3106574 , 2.0746617 …
1. Replicate Function in R: Rep() is the function in R that replicates the values as per the argument passed. in the above example Sri is the string and 3 is the argument Passed. The Output printed in console is “sri” “sri” sri’ , as the argument passed is 3 so the Value is printed thrice. …
Create vectors using C function : C Function Combines Values into a Vector or List, This is a generic function which combines its arguments. The default method combines its arguments to form a vector. All arguments are coerced to a common type which is the type of the returned value. In a Layman Language Generally …
Create Vectors with different Functions, Operators & Vector Elements Read More »
As we discussed about Vectors in my Previous Post, if not referred please find the below link to explore. Vectors are the most basic R data objects and there are six types of atomic vectors. They are logical, integer, double, complex, character and raw. Lets Take some quick examples to Create Vector : Single Vector …
R programming is one of the most popular languages when it comes to data science, statistical computations or scientific research. R programming is widely used in machine learning and it is very efficient and user-friendly. It provides flexibility in doing big statistical operations with a few lines of code. Vectors in R are the same …
A switch statement is a selection control mechanism that allows the value of an expression to change the control flow of program execution via map and search. The switch statement is used in place of long if statements which compare a variable with several integral values. It is a multi-way branch statement which provides an …
A repeat loop is used to iterate over a block of code multiple number of times. There is no condition check in repeat loop to exit the loop. We must ourselves put a condition explicitly inside the body of the loop and use the break statement to exit the loop. Failing to do so will result into …
If statement is one of the Decision-making statements in the R programming language. It is one of the easiest decision-making statements. It is used to decide whether a certain statement or block of statements will be executed or not i.e. if a certain condition is true then a block of statement is executed otherwise not. Syntax: …
If statements in R language ( Decision making Statements) Read More »
An operator is a symbol that tells the compiler to perform specific Arithmetical or logical manipulations. R language is rich in built-in operators and provides following types of operators. R’s binary and logical operators will look very familiar to programmers. Note that binary operators work on vectors and matrices as well as scalars. 1.Arithmetic Operators: 2. Logical Operators : Practicing exercises on …
As we know there are three List of Loops While Loop ( I have posted on this in my previous post, please refer this below link if not explored) 2.For Loop: we will be discussing in this Post 3.Repeat Loop : we will discuss on this in next Post There are two Loop control statements: …
In Today’s post we will be exploring different For loop operations in R Language: Read More »
Quiz time ….. It is good to check our knowledge ,let’s Look at the questions and check our Knowledge. The answers for all the questions are mentioned at the end of the post. Question 1: Which one of these Variable Types is used for storing a number with a decimal point (such as 52.63) ? …
Loops are used in programming to repeat a specific block of code. In this post, you will learn to create a while loop in R programming. Use of While Loop in R Programming: In R programming, while loops are used to loop until a specific condition is met . While loop starts with Keyword while …
Iterative statements in R Language : (While Loop) Read More »
