![WHAT FILE TYPES ARE TYPICALLY
ASSOCIATED WITH R?
• *.r - An R script.
• *.rmd - An R Markdown file.
• *.rnw - An R Sweave file.
• *.rds - A file containing a [single] R object; can be
created using saveRDS(), and loaded
using readRDS().
• *.rdata - A file containing one or more R objects
or workspaces; can be created using save(), and
loaded using load().](https://image.slidesharecdn.com/introductiontor-240429164816-acc71f3e/85/Introduction-to-R-pptxvvvsjtajtaitsiysyisiysiy-7-320.jpg)
Introduction to R.pptxvvvsjtajtaitsiysyisiysiy
- 1. Introduction to R By: Dr. Preeti Jindal Associate Professor TIAS
- 2. What is R • WHAT IS R? • R is both a programming language and software environment for statistical computing, R is a free, open source software program for statistical analysis.
- 3. How to Start R • To get started, you will need to install two pieces of software: • • R, the actual programming language. – Chose your operating system, and select the most recent version, 4.2.1. • • RStudio, an excellent IDE for working with R. – Note, you must have R installed to use RStudio. RStudio is simply an interface used to interact with R.
- 4. • R is used both for software development and data analysis.
- 5. Why use R • Free and open source. • Available for Windows, Macintosh, and Linux. • Publication-quality graphs. • Rivals (and in many cases, exceeds) SAS and Stata in terms of availability of advanced statistical methods and algorithms, through availability of user-created packages. • Packages for literate statistical programming - weaving written reports and analysis code in one document.
- 6. • WHAT IS RSTUDIO? • RStudio is a free, open source IDE (integrated development environment) for R. (You must install R before you can install RStudio.) Its interface is organized so that the user can clearly view graphs, data tables, R code, and output all at the same time. It also offers an Import-Wizard- like feature that allows users to import CSV, Excel, SAS (*.sas7bdat), SPSS (*.sav), and Stata (*.dta) files into R without having to write the code to do so.
- 7. WHAT FILE TYPES ARE TYPICALLY ASSOCIATED WITH R? • *.r - An R script. • *.rmd - An R Markdown file. • *.rnw - An R Sweave file. • *.rds - A file containing a [single] R object; can be created using saveRDS(), and loaded using readRDS(). • *.rdata - A file containing one or more R objects or workspaces; can be created using save(), and loaded using load().
- 8. How can I access R? • R and RStudio are free and open-source. To install them on any computer, download the software from their respective websites.
- 9. Package required • Readxl: to import excel file in r-studio • Readr: to import csv and text file in r-studio • Rjson: to import JSON file in r-studio • XML: to import html table in r-studio • Haven: to import SAS file in r-studio • Haven: to import SPSS file in r-studio