R Programming

Prepared By –
Abhishek Pratap Singh
B.Tech. I.T. – 4th Sem.
Roll No. 03
Presented To –
Mr. Ashu Sharma

WEBSITE
edX
www.edx.org
Trainer: Mr. Filip Schounwenaars

What is R?
• Language for Statistical Computing
• Ihaka & Gentleman
• Auckland, New Zealand
• Open-source implementation of S
• Statistical Techniques
• Visualization Capabilities
• Highly Extensible

Important features of R
 R is a well-developed, simple and effective programming
language which includes conditionals, loops, user defined
recursive functions and input and output facilities.
 R has an effective data handling and storage facility,
 R provides a suite of operators for calculations on arrays,
lists, vectors and matrices.
 R provides a large, coherent and integrated collection of
tools for data analysis.
 R provides graphical facilities for data analysis and
display either directly at the computer or printing at the
papers.

Module - 1
R: The True Basics
What is R?
Advantages &
Disadvantages
Console
Variables
Workspace
R Scripts
Comments #

Module - 2
Basic Data Types
Logical
Numeric
Character
Other Atomic Types
Coercion

Module – 3
Create And Name Vectors
Vector
Create a Vector
Name a Vector
Single Value = Vector
Vectors are
Homogenous
Coercion for Vectors

Module - 4
Vector Arithmetic
Vector Arithmetic
Element-wise
‘sum( )’ and ‘>’
Operations

Module - 5
Subsetting vectors
Subset by Index
Subset by Name
Subset Multiple
Elements
Subset All but Some
Subset using Logical
Vectors

Module - 6
Create & Name Matrices
Matrix
Create a Matrix:
matrix ( )
Create a Matrix:
Recycling
‘rbind( )’ , ‘cbind( )’
Naming a Matrix:
‘rownames( )’,
‘colnames( )’

Module – 7
Subsetting Matrices
Subset Element
Subset Multiple
Elements
Subset by Name
Subset by Logicals
Subsetting Cautions

Module - 8
Matrix Arithmetic
Matrix Arithmetic
‘lotr_matrix’
Matrix – Scalar
Matrix – Matrix
Recycling
Matrix Multiplication
Matrices and Vectors

Module - 9
Factors
Categorical Variables
Create Vector:
factor( )
Order Levels
Differently
Rename Factor Levels
Nominal versus Ordinal
Ordered Vector
Wrap Up

Module - 10
Create and Name Lists
Vector - Matrix - List
Create a List
‘list ( )’
Name List
‘str( )’
List in List

Module - 11
Subset And Extend List
Subsetting Lists
‘[’ versus ‘[[’
Subset by Names
Subset by Logicals
‘$’ and Extending
Extending Lists
Wrap UP

R Programming

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