R Archives - Page 6 of 6 - Analytics Tuts

How to Screen Scrape Using R

February 2, 2018 Laura Ellis One comment

STEP 1: BACKGROUND

Screen scraping is an effective technique that can be used to gather data off of web pages. Typically the data is gathered for further analysis or aggregation.

In this tutorial, we are going to screen scrape Googles “Best of 2017” App lists. We are using screen scraping as a technique to automate copying data off of websites. For data wranglers, there are a number of libraries and packages that have been developed to make screen scraping relatively straightforward. In Python, the package Beautiful Soup has a large following. In R, the package rvest has been getting a lot of traction.

In this tutorial, we will use the rvest package to scrape data from the Google Best Apps of 2017 website and store it in a data frame. We will then use a few of R packages to analyze the dataset further.

Note: The full R code can be downloaded here.

How to send Desktop Notification in R

January 15, 2018 Niket Kedia One comment

Hello friends! today we’ll be learning how to send desktop notification in R. There are push notification in mobile phones, site notifications for websites like gmail sends desktop notification for every new received mail (if you’ve switched on the notification).

R
RStudio

Correlation Matrix in R

January 6, 2018 Niket Kedia One comment

Hello friends! Wishing you all a Very Happy New Year 2018!

Today we’ll be seeing the correlation matrix heatmap. Heatmaps are visually appealing with quick and easy to get inference. Follow the quick and easy tutorial.

R
RStudio

Zipf’s Law and Introduction to Text Analytics

May 20, 2017 Niket Kedia One comment

Hello Friends! recently I was doing some research and got to know about an interesting law called Zipf’s law. You can read about it on wikipedia and how it is applicable almost everywhere.

How to assign and read external data in R?

March 30, 2017 Irfy Leave a comment

Assignment Operator

The most straight forward way to store a list of numbers is through an assignment operator using the c command. (c stands for “combine.”) A list is specified with the c command, and assignment is specified with the “chucha”.

What is R? A little introduction about R History

February 28, 2017 Irfy Leave a comment

Welcome to the series of R tutorials.

For this Tutorial series you will need little introduction of R programming, don’t worry I will introduce you about the basics of R in coming articles. For now Lets’ get to know the history and environment of R or RStudio.

PostgreSQL connection to R

June 4, 2016 Niket Kedia Leave a comment

Today we’ll be learning to connect to Postgre SQL like Amazon Redshift to R. So the package available in R is RPostgreSQL.

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