This two-part blog post I published a day ago required key-stats from Yahoo Finance for all the companies in the control group I created for my research. I wanted all the key-stats pulled, arranged in a data-frame and then present them side-...
Blog Archives
If You are a R Developer, Then You Must Try SAP HANA for Free.
This is a guest blog from Alvaro Tejada Galindo, my colleague and fellow R and SAP HANA enthusiast. I am thankful to Alvaro for coming and posting on "AllThingsR".Are you an R developers? Have ever heard of SAP HANA? Would you like to test&n...
Big Data, R and SAP HANA: Analyze 200 Million Data Points and Later Visualize in HTML5 Using D3 – Part III
Mash-up Airlines Performance Data with Historical Weather Data to Pinpoint Weather Related DelaysFor this exercise, I combined following four separate blogs that I did on BigData, R and SAP HANA. Historical airlines and weather dat...
Big Data, R and HANA: Analyze 200 Million Data Points and Later Visualize in HTML5 Using D3 – Part II
In my last blog, Big Data, R and SAP HANA: Analyze 200 Million Data Points and Later Visualize Using Google Maps, I analyzed historical airlines performance data set using R and SAP HANA and put the aggregated analysis on Google Maps. Undoub...
Getting Historical Weather Data in R and SAP HANA
For many of my latest data blogs, I needed historical weather data to perform data mash-ups to pin-point the cause. For example, for my continued exploration into the airlines/airports historical data using SAP HANA and R, I wanted to find out wh...
Big Data, R and HANA: Analyze 200 Million Data Points and Later Visualize Using Google Maps
Technologies: SAP HANA, R, HTML5, D3, Google Maps, JQuery and JSONFor this fun exercise, I analyzed more than 200 million data points using SAP HANA and R and then brought in the aggregated results in HTML5 using D3, JSON and Google Maps APIs. Th...
Tracking SFO Airport’s Performance Using R, HANA and D3
This is my first introduction to D3 and I am simply blown away. Mike Bostock (@mbostock), you are genius and thanks for creating D3! With HANA, R, D3, HTML5 and iPad, and you got yourself a KILLER combo!I have been burning my midnight oil o...
Geocode and reverse geocode your data using, R, JSON and Google Maps’ Geocoding API
Geocode and reverse geocode your data using, R, JSON and Google Maps' Geocoding APITo geocode and reverse geocode my data, I use Google's Geocoding service which returns the geocoded data in a JSON. I will recommend that you register with Google Maps A...
Updated Sentiment Analysis and a Word Cloud for Netflix – The R Way!
The Netflix investors must be happy and cheerful as the stock is up more than 78% since the beginning of the year (YES, 78%, Source: Yahoo Finance!). I am not going to talk about what turned the stock around after a much talked/hyp...
Sentiment Analysis, the R way, on Netflix’s September 18th Announcement
Re-posting this blog from my other blog on Analytics (http://allthingsbusinessanalytics.blogspot.com/)Did Netflix make a bad move or a bold move, only time will tell but for now here is a simple sentiment analysis using R and TwitteR pac...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
