R CODER

INTRODUCTION TO R

R basics Data structures Control structures Mathematical functions
Learn how to use the ifelse function in R

The ifelse function

Control Structures

The repeat loop in R

The repeat loop

Control Structures

Learn how to update R and RStudio

How to update R and RStudio?

R basics

The switch function in R

The switch function

Control Structures

The Sys.sleep() function

Suspend the execution of an R code for a time interval

Flow control

Get the number of rows and columns in R

Number of rows and columns

Structure exploration

Print values in R with the print(), sprintf(), cat() and noquote() functions

Printing values

R basics

Square root in R with sqrt()

Square root

Mathematical functions

Diagnostic messages in R

Warning and error messages

R basics

Trigonometric functions in R

Cosine, sine and tangent

Mathematical functions

System date and time in R

System date and time

R basics

tryCatch() function in R

Try catch

Flow control

INTRODUCTION TO R PROGRAMMING LANGUAGE

This category provides introductory R programming tutorials for beginners. If you read these tutorials you will learn the basic concepts to start with R, like how to store and save objects in the workspace in different data structures and even how to control the flow of the code. This category includes:

  1. R and RStudio installation

    Learn how to install R and RStudio on Windows and macOS, change the R GUI language or even the RStudio theme, check the R version and the path of the installation and learn the first steps for executing R commands.

  2. Basic R concepts

    Learn about R operators, data types, printing values, how to get help for functions and packages, set the working directory, save or clear the R workspace and install R packages with additional functions.

  3. Data structures

    R data structures are objects used to store different data types in different ways. The basic data structures are vectors, that allows you to store unidimensional variables, factors (vectors of categorical variables), lists, to store different R objects on the same structure, data frames, for heterogeneous data types and matrices, to store homogeneous data types.

  4. Control structures

    R control structures are blocks of code that allows you to modify the control flow of your code. You can create conditions or repeat or cycle some blocks of code depending on some events. These control structures include the if else statement, the for loop (and how to optimize its performance) and the while loop.

  5. Programming

    You will also learn how to create your own R functions in order to extend the functionalities of the R language and to add warning or error messages.

  6. Mathematical functions

    Finally, you will learn about the most common mathematical functions used to perform operations such as square roots, sine and cosine calculations or logarithms and exponentials, among others.