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-...
Posts Tagged ‘ R bloggers ’
R for dummies
Just saw this nice review of R for dummies. And thought after this afternoon class that my students in the simulation course at Paris-Dauphine could clearly benefit from reading it! They in fact had a terrible time simulating a truncated normal distribution by accept-reject. As they could not get the notion of normalising constants… (Yes, 
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...
My main resources for R programming
In this article, you will find a list of Internet resources that may be useful if you are programming in R. If you have a problem with R and
R-bloggers
OK, like the nightclub Kenan and Kel founded in Rigby’s shop, we all know this blog is ‘duh bomb’ (or will be as I add more than my solitary post). However, there are other good R blogs. I thoroughly recommend signing up to the R-b...
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...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
