Introduction to R Programming

? What is R?

? Positioning of R in the Data Science Space

? The Legal Aspects

? Microsoft R Open

? R Integrated Development Environments

? Running R

? Running RStudio

? Getting Help

? General Notes on R Commands and Statements

? Assignment Operators

? R Core Data Structures

? Assignment Example

? R Objects and Workspace

? Printing Objects

? Arithmetic Operators

? Logical Operators

? System Date and Time

? Operations

? User-defined Functions

? Control Statements

? Conditional Execution

? Repetitive Execution

? Repetitive execution

? Built-in Functions

? Summary

? What is Functional Programming (FP)?

? Terminology: Higher-Order Functions

? A Short List of Languages that Support FP

? Functional Programming in R

? Vector and Matrix Arithmetic

? Vector Arithmetic Example

? More Examples of FP in R

? Summary

? Getting and Setting the Working Directory

? Getting the List of Files in a Directory

? The R Home Directory

? Executing External R commands

? Loading External Scripts in RStudio

? Listing Objects in Workspace

? Removing Objects in Workspace

? Saving Your Workspace in R

? Saving Your Workspace in RStudio

? Saving Your Workspace in R GUI

? Loading Your Workspace

? Diverting Output to a File

? Batch (Unattended) Processing

? Controlling Global Options

? Summary

? The R Data Types

? System Date and Time

? Formatting Date and Time

? Using the mode() Function

? R Data Structures

? What is the Type of My Data Structure?

? Creating Vectors

? Logical Vectors

? Character Vectors

? Factorization

? Multi-Mode Vectors

? The Length of the Vector

? Getting Vector Elements

? Lists

? A List with Element Names

? Extracting List Elements

? Adding to a List

? Matrix Data Structure

? Creating Matrices

? Creating Matrices with cbind() and rbind()

? Working with Data Frames

? Matrices vs Data Frames

? A Data Frame Sample

? Creating a Data Frame

? Accessing Data Cells

? Getting Info About a Data Frame

? Selecting Columns in Data Frames

? Selecting Rows in Data Frames

? Getting a Subset of a Data Frame

? Sorting (ordering) Data in Data Frames by Attribute(s)

? Editing Data Frames

? The str() Function

? Type Conversion (Coercion)

? The summary() Function

? Checking an Object's Type

? Summary

? The Base R Packages

? Loading Packages

? What is the Difference between Package and Library?

? Extending R

? The CRAN Web Site

? Extending R in R GUI

? Extending R in RStudio

? Installing and Removing Packages from Command-Line

? Summary

? Reading Data from a File into a Vector

? Example of Reading Data from a File into A Vector

? Writing Data to a File

? Example of Writing Data to a File

? Reading Data into A Data Frame

? Writing CSV Files

? Importing Data into R

? Exporting Data from R

? Summary

? Statistical Computing Features

? Descriptive Statistics

? Basic Statistical Functions

? Examples of Using Basic Statistical Functions

? Non-uniformity of a Probability Distribution

? Writing Your Own skew and kurtosis Functions

? Generating Normally Distributed Random Numbers

? Generating Uniformly Distributed Random Numbers

? Using the summary() Function

? Math Functions Used in Data Analysis

? Examples of Using Math Functions

? Correlations

? Correlation Example

? Testing Correlation Coefficient for Significance

? The cor.test() Function

? The cor.test() Example

? Regression Analysis

? Types of Regression

? Simple Linear Regression Model

? Least-Squares Method (LSM)

? LSM Assumptions

? Fitting Linear Regression Models in R

? Example of Using lm()

? Confidence Intervals for Model Parameters

? Example of Using lm() with a Data Frame

? Regression Models in Excel

? Multiple Regression Analysis

? Summary

? Applying Functions to Matrices and Data Frames

? The apply() Function

? Using apply()

? Using apply() with a User-Defined Function

? apply() Variants

? Using tapply()

? Adding a Column to a Data Frame

? Dropping A Column in a Data Frame

? The attach() and detach() Functions

? Sampling

? Using sample() for Generating Labels

? Set Operations

? Example of Using Set Operations

? The dplyr Package

? Object Masking (Shadowing) Considerations

? Getting More Information on dplyr in RStudio

? The search() or searchpaths() Functions

? Handling Large Data Sets in R with the data.table Package

? The fread() and fwrite() functions from the data.table Package

? Using the Data Table Structure

? Summary

? Data Visualization

? Data Visualization in R

? The ggplot2 Data Visualization Package

? Creating Bar Plots in R

? Creating Horizontal Bar Plots

? Using barplot() with Matrices

? Using barplot() with Matrices Example

? Customizing Plots

? Histograms in R

? Building Histograms with hist()

? Example of using hist()

? Pie Charts in R

? Examples of using pie()

? Generic X-Y Plotting

? Examples of the plot() function

? Dot Plots in R

? Saving Your Work

? Supported Export Options

? Plots in RStudio

? Saving a Plot as an Image

? Summary

? Object Memory Allocation Considerations

? Garbage Collection

? Finding Out About Loaded Packages

? Using the conflicts() Function

? Getting Information About the Object Source Package with the pryr Package

? Using the where() Function from the pryr Package

? Timing Your Code

? Timing Your Code with system.time()

? Timing Your Code with System.time()

? Sleeping a Program

? Handling Large Data Sets in R with the data.table Package

? Passing System-Level Parameters to R

? Summary

Lab 1 - Getting Started with R

Lab 2 - Learning the R Type System and Structures

Lab 3 - Read and Write Operations in R

Lab 4 - Data Import and Export in R

Lab 5 - k-Nearest Neighbors Algorithm

Lab 6 - Creating Your Own Statistical Functions

Lab 7 - Simple Linear Regression

Lab 8 - Monte-Carlo Simulation (Method)

Lab 9 - Data Processing with R

Lab 10 - Using R Graphics Package

Lab 11 - Using R Efficiently