Blog Archives

Things I wish Iโ€™d known before I started using R

March 12, 2011
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Things I wish Iโ€™d known before I started using R

I’ve been using R for a couple of years now.  This post is aimed at me a couple of years ago, or you if you’re just starting to use R and are pressed for time.  Here’s some things I wish I’d known in early 2009. Use a naming convention read.csv is a great function, but

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R in production systems

February 2, 2011
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R in production systems

R is great for prototyping models.  Not so great if those models have to run a business.  Here’s some tips to help with that: Validate, alert, and monitor Sink Use 64-bit Linux Write your own functions tryCatch Validate, alert, and monitor:  Sooner or later something is going to go wrong with your model.  Maybe some

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Reflections on consulting part 5 โ€“ what languages and tools to learn?

May 12, 2010
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Reflections on consulting part 5 โ€“ what languages and tools to learn?

What languages and tools should you learn as a math/stat consultant?ย  To jump to the answer: Excel/VBA, SQL, R, Java, and Python. Spreadsheets have many problems with verifiability and scalability, so why Excel? Excel is: Useful for prototyping ideas quickly, either for your own use or to show to other team members Well-known and understood

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R and data

May 26, 2009
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R and data

My fellow bloggers John and Scott have posted recently about the free statistical programming language R.ย  How does it compare to an expensive language like SAS? If youโ€™ve done any statistical analysis, then youโ€™ll know that getting and cleaning the data is a major step in any project.ย  SAS does a pretty good job at

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