1265 search results for "Excel"

Top 50 Statistics blogs

October 10, 2011
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TheBestColleges.org has just published their list of the "Top 50 Statistics Blogs of 2011", and I'm pleased say that not only did our own Revolutions blog make the list, but it's in fine company with some truly excellent blogs. Several of my personal favourites made the list, including: Guardian columnist Ben Goldacre's Bad Science blog The Dataists, a blog...

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An exercise in plyr and ggplot2 using triathlon results

October 10, 2011
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An exercise in plyr and ggplot2 using triathlon results

I ran my last triathlon for this year a couple of weeks ago, in the beautiful town of Stratford-upon-Avon. The results were online the day after so I decided to have a look at my fellow competitors’ times, which gave … Continue reading →

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Some light data munging with R, with an application to ranking NFL Teams

October 8, 2011
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Some light data munging with R, with an application to ranking NFL Teams

I recently submitted this blog to R-bloggers, which aggregates R-related blog posts. It's a fantastic site and has been invaluable to me as I've learned R. One of my favorite kinds of articles is the hands-on, "hello world"-style weekend project t...

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Because it’s Friday: Reviews of Random Digits

October 7, 2011
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If you dig around enough on Amazon.com, you can find some pretty odd products (like the Badonkadonk tank now sadly unavailable). Attached to these products you can often find a new form of comedy: the funny Amazon review. The products that attract such attention can be hard to fathom: this gallon of milk has more than 1,000 reviews. (Sample:...

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Webinar Oct 13: Successful uses of R in Banking

October 6, 2011
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On Thursday October 13, Hong Ooi from ANZ (Australia and New Zealand Banking Group) will give a webinar presentation on Successful Uses of R (along with SAS and Excel) in Banking. We've covered Hong's use of R for credit risk analysis here on the blog before, and in next week's webinar he'll take an in-depth look at applying R...

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Spatiotemporal Data Mining: 2

October 6, 2011
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Spatiotemporal Data Mining: 2

There are many visual methods used to identify patterns in space and time. I've discussed some in prior threads and will show a few others briefly here. One of the most difficult questions I often hear from others regarding markov type approaches, is...

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Jeff Augen Volatility Spike Code in R

October 2, 2011
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Jeff Augen Volatility Spike Code in R

Jeff Augen has written many excellent books on options trading, including&nb...

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Rcpp 0.9.7

September 30, 2011
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A fresh maintenance release version 0.9.7 of Rcpp went onto CRAN and into Debian earlier today. This release contains two contributed fixes. The first, suggested by Darren Cook via the rcpp-devel mailing list, corrects how we had set up excepti...

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Modelling with R: part 1

September 29, 2011
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Modelling with R: part 1

When I started work about 3 months ago, I didn't know much more than loading data and executing standard Econometric commands in R. But now I feel much much much more confident in using R for work, for research, for puzzles, and sometimes just for fun....

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Data Science: a literature review

September 28, 2011
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Data Science: a literature review

Just what is Data Science, anyway? Here's one take: Ever since the term "Data Scientist" was coined by DJ Patil and Jeff Hammerbacker in 2009, there's been a vigorous debate on what the team actually means. More than 80% of statisticians consider themselves data scientists, but Data Science is more than just Statistics. (My own take is that Data...

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