# Monthly Archives: November 2012

## Make your own electoral map

November 7, 2012
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You’ve already seen everyone else’s electoral map (see this amazing array of maps from 2008), how would you like to make your own? Today’s Gist allows you to do just that — input (manually!) state-by-state results, and output a...

## Project Euler — problem 22

November 7, 2012
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Just had my supper. Stomach is full of stewed beef and potato.  I’d like to solve the 22nd Euler problem before tonight work (right, I’ll work late in my office). Using names.txt (right click and ‘Save Link/Target As…’), a 46K text file containing over … Continue reading →

## Gotcha!

November 7, 2012
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I should start this with a disclaimer, ie that I'm not really claiming any "success" with this post. But I find it quite interesting that the estimations I produced with this very, very simple model turned out to be quite good.The idea was to use the e...

## Nate Silver does it again! Will pundits finally accept defeat?

November 6, 2012
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My favorite statistician did it again! Just like in 2008, he predicted the presidential election results almost perfectly. For those that don’t know, Nate Silver is the statistician that runs the fivethirtyeight blog. He combines data from hundreds of polls, uses … Continue reading →

## Credit Scoring in R 101

In this post we'll fit some predicitve models in (well know) data bases, and evalute the performance of each model. Disclaimer1: for simplicity the predictive variables are treating without apply any transformation to get a better performance or stabil...

## Using R — Calling C Code ‘Hello World!’

November 6, 2012
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This entry is part 6 of 11 in the series Using ROne of the reasons that R has so much functionality is that people have incorporated a lot of academic code written in C, C++, Fortran and Java into various …   read more ...

## Webinar Thursday: How R is used to optimize tractor production at John Deere

November 6, 2012
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I just sat in on the rehearsal for Thursday's webinar by John Deere's Derek Hoffman, Order Fulfillment Forecasting at John Deere: How R Facilitates Creativity and Flexibility. Derek will give a spirited argument of why R is critical for the faming equipment manufacturer's operations: from forecasting demand for equipment, forecasting crop yields (they produce forecasts for more than half...

## 2012-9 Writing grid Extensions

November 6, 2012
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New hook functions, makeContext() and makeContent(), have been added to the grid graphics package. These functions allow an alternative approach to developing custom grobs when a grob can only decide what to draw at drawing time rather than when the … Continue reading →

## rfigshare tutorial

November 6, 2012
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Recently we at rOpenSci released our rfigshare package up on cran (or you can check out the most up to date version on github. So what’s so great about being able to create figshare articles through R? For some time now I’ve been advocating the use of a workflow that involves documents written in R...

## R BLAS: GotoBLAS2 vs OpenBLAS vs MKL

November 6, 2012
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Short update to Speed up R by using a different BLAS implementation/: MKL is overall the fastest OpenBLAS is faster than its parent GotoBLAS and comes close to MKL A = matrix(rnorm(n*n),n,n) A %*% A solve(A) svd(A)

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