
Getting to know R and it's origin
- This video is to demonstrate how to download R and R Studio
- Introducing R studio
- Refer Attached Installation Guide for help in Installation
Please download the attached material
- Understanding Working Directory
- How to change Working Directory
- Creating files through R
- Saving and Loading R Workspace
- Why Data Type is important ?
- Implementing Basic Data types in R
- Take a sneak peek on some mathematical basic operations in R
Learn some more mathematical operations in R
- ...and now time to look into some character operations in R
- Understanding data structure in R
- What is a vector
- Features of vector
- How to create a vector
Learn how to do set operations in Vectors
- Understanding a bi-directional array like Dataframe
- Creating Dataframes
- Features of Dataframes
- Set operations with Dataframes
- Difference between Dataframe and List
- How to create Matrix in R
- Using Factors to create class variables
- How to create Date formats
- Basic Date operations using POSIXlt
Understand how to treat missing values and random numbers
- Use of Packages in R
- Loading and Installing a package
- Reading Excel file through xlsx package function
- Learn how to write Excel and Csv file to your system
- Playing with the Text file
Please Download the attached modified Text file ; which you have to use for Text data import
- Learn how to do Sql like Joins in R
- Performing Logical operations and If conditional in R
Writing basic functions using "Function" command in R
Nested Conditional Statements
Learn how to write UDFs in R
Please download the attached "Practice.Xlsx file" to solve this case study.
Objective : To Build a wordcloud on Tweets Archive.
Data Required : Tweet Archive ( R data) ; please download the attached data
Packages Required : Install the Packages that are mentioned in the "List of packages.txt"
Please download the attached material
-Creating and Cleaning the corpus
Please Download the attached pdf file to learn in depth about the Text Mining in R.
Source of file: https://cran.r-project.org/web/packages/tm/vignettes/tm.pdf
This course is about learning R Tool which is one of the most popular Analytical Tool used in the Industry.
Why learning R will make a difference / Why this Course ?
- Professional Relevance :
R is gaining popularity day by day ; companies like Facebook, Google are using R in extensive manner. Demand for the tool is increasing as it is available for free.
- Put your Resume in spotlight :
In most of the Data Analyst Resume you will find SAS/SPSS and other conventional tools ; by learning R you can add extra points to your Resume.
- Its easy to Learn R :
R is an opensource language ; it is available for free. Huge R community is adding to the functionality of R daily . All the tutorials/code are easily available.
Materials Included :
- Materials in the form of attachments are included with the session itself ( wherever necessary)
Structure of the course :
The course has 5 sections with 15 lectures. It is designed to introduce you to foundational topics leading to more complex ones as you progress.
Section 1: Know your R Tool
Section 2: Data Manipulation : Use of Data types and Data structures
Section 3: Data Management : Packages and File import/export
Section 4: Advance Use : Logical operation and Merging in R
Section 5: Text Analytics Project : Learn how to create wordcloud
Duration of the course :
The course has 5 sections with 15 lectures and the overall duration of the course is 2.5 hours.