Blog Archives

Sachin Tendulkar’s longevity

June 15, 2011
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Sachin Tendulkar’s longevity

There have been over 3300 cricketers who've played Test and One Day cricket. The youngest player was 14 years old Hasan Raza from Pakistan who played 5 ODIs and 2 Test matches at that age. The oldest player was 52 years old&nbs...

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Cricket fever again

May 26, 2011
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Cricket fever again

England take on Sri Lanka in a test series starting today. After watching Cricket world cup 2011 and witnessing India play in quarter final, semi final and the finale in stadiums all over India, I had little appetite for any of the IPL 2011 matche...

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10 reasons why you should learn R

May 20, 2011
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10. Can't crack that hard Sudoku problem?? Use R!9. Want to pick a skill that will give you an early adopter advantage?? Learn R! It is the leading open source statistical and data analysis programming language, and is heating up! 8. Need to ...

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Vehicle Routing Problem

May 18, 2011
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Vehicle Routing Problem

This is a follow-up to a previous question on VRP. I investigated R libraries and several other options to solve VRP and decided to build a custom desktop application using open source libraries from COIN-OR. Screenshots attached below.Leave a comment ...

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Introducing R in the Enterprise

May 2, 2011
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Introducing R in the Enterprise

We've introduced R in the organization!It is running along with the heavy weights of statistical analysis like SAS, SPSS, Matlab. Here's what we did and how we did it...HOW DID IT START?I started learning R last year and loved its simplicity and power....

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Big data problems

April 22, 2011
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Big data problems

I have big data problems.I need to analyze 100s of millions of rows of data and tried hard for 2 weeks to see if I can use R for this. My assessment so far from the experiments...1) R is best for data that fits a computer's RAM (so get more RAM if...

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Why learn R?

March 1, 2011
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Why learn R?

I'm introducing R to a few colleagues this week and want to share why learning a software like R is important... Here are a few articles that explain it well... Other reasons?Importance of data science- Couple years ago Google's Chief Economist Hal Var...

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Stata or R – How to create dynamic variables in R?

February 16, 2011
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As we dig deeper into Stata or R debate, a few questions have come up.Question 1: One of the things Stata does well is the way it constructs new variables (see example below). How to do this in R? We can rewrite it as-is using for loops in R...

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Stata or R

February 10, 2011
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Stata or R

Recently I came across a complex model written in Access with complex SQL queries all over the place. The engineer who was maintaining it and I did some analysis and agreed that the model was using SQL in an unnatural way (things SQL isn't good at) - c...

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EPL Fantasy Football: Best overall, home and away teams

January 13, 2011
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EPL Fantasy Football: Best overall, home and away teams

I've refined the R code to pick the best fantasy soccer team by using more granular player performance data (available publicly). Here are the best overall, home and away teams. The constraints used are: 1) Number of goalkeepers = 12) Nu...

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