Monthly Archives: December 2013

Exploring census and demographic data with R

December 25, 2013
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Exploring census and demographic data with R

I wanted to use R to explore how to access and visualize census data, home value data and school rating data using Indianapolis metro area as an example. My learning objectives here are to learn how to use R to: … Continue reading →

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The Mascots of Bayesian Statistics

December 25, 2013
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The Mascots of Bayesian Statistics

Why would Bayesian statistics need a mascot/symbol/logo? Well, why not? I don’t know of any other branch of statistics that has a mascot but many programming languages have. R has an “R”, Python has a python snake, and Go has an adorable little gopher. While Bayesian statistics isn’t a programming language it could be characterized as...

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Response Time Percentiles for Multi-server Applications

December 25, 2013
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Response Time Percentiles for Multi-server Applications

In a previous post, I applied my rules-of-thumb for response time (RT) percentiles (or more accurately, residence time in queueing theory parlance), viz., 80th percentile: $R_{80}$, 90th percentile: $R_{90}$ and 95th percentile: $R_{95}$ to a cellphone application and found that the performance measurements were not completely consistent. Since the data appeared in a journal blog, I...

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Merry Christmas

December 25, 2013
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Merry Christmas. I am sorry to update this blog so late. Actually I was extremely busy in recent months because of my Ph.D application. Here is a simple Christmas Card powered by R to express my best wishes to you.  Sincerely hope all your Christmas dreams come true! View card. By the way, if you are interested … Continue reading...

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How fair is White Elephant?

December 24, 2013
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How fair is White Elephant?

This article was first published on analyze stuff. It has been contributed to Anything but R-bitrary in celebration of its introductory post.By Max Ghenis Welcome to analyze stuff! For our first post, I wanted to reflect on the time of year; after all, ‘tis the season for hams and yams, caroling and sledding, and of...

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24 Days of R: Day 24

December 24, 2013
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24 Days of R: Day 24

OK, so I phoned it in last night. Final post and maybe this one will be a bit better. Can't recall what got me thinking about it, but I was running over the issue of school performance and the erroneous notion that small class sizes will produce better students. This is occasionally debunked, but I

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Combining the Power of DeployR, rCharts, and AngularJS

December 24, 2013
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by Sheri Gilley, Principal UI Designer at Revolution Analytics Revolution R Enterprise DeployR is a server framework that exposes the R platform as a service allowing the integration of R statistics, analytics and visualizations inside Web, desktop and mobile applications. DeployR’s framework allows users to store and serve up R code that can then easily be used and reused...

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How fair is White Elephant?

December 24, 2013
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How fair is White Elephant?

Welcome to analyze stuff! For our first post, I wanted to reflect on the time of year; after all, ‘tis the season for hams and yams, caroling and sledding, and of course gifts! One popular party gift exchange game is the White Elephant, where each person brings a wrapped (typically regifted or otherwise odd-ball)...

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Sentence Drawing: Part II

December 23, 2013
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Sentence Drawing: Part II

In a recent blog post I introduced Stefanie Posavec‘s Sentence Drawings. We created this ggplot2 rendition: We left off weighing the aesthetics of the Sentence Drawing with information of quality visualizations. I asked others to think of ways to display … Continue reading →

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RcppZiggurat 0.1.0 (and 0.1.1): Faster N(0,1) RNGs

December 23, 2013
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Over the last few weeks I have been working on getting the Ziggurat normal random number generator updated and available in R. The Ziggurat generator provides a pretty unique combination of speed and good statistical properties for (standard) normal r...

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