Monthly Archives: July 2011

Slides for Reproducible Research Talk at Interface 2011

July 20, 2011
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Slides for Reproducible Research Talk at Interface 2011

I gave a talk at the Interface Symposium on reproducible research in practice. I went first in the session, so the slides have a bit more background and philosophy. It was a great session; one of Jon Claerbout's colleagues spoke, Sergey Fomel, a founding author of Madagascar; Sorin Mitran from UNC Chapel Hill talked about

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Simpson’s Paradox

July 20, 2011
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Simpson’s Paradox

A few days ago I heard a talk about Simpson's paradox, and I decided to write a little example in R:library(MASS) # For multivariate normals# List of (vectors of) meansmu <- list(c(5, 175), c(6.25, 110))# List of covariance matricessigma ...

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Visualizing Kickstarter Projects with R

July 20, 2011
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Visualizing Kickstarter Projects with R

Kickstarter, a social funding platform where individuals can chip in cash to get a worthy project going, just celebrated their 10,000th kickstarted project. Kickstart employee Fred Benenson recognized the achievement by visualizing the funding of music, design, art, game and many other kinds of projects using R and ggplot2. For example, here's a chart that shows the increasing rate...

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Showcasing the latest phylogenetic methods: AUTEUR

July 20, 2011
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Showcasing the latest phylogenetic methods: AUTEUR

While high-speed fish feeding videos may be the signature of the lab, dig a bit deeper and you’ll find a wealth of comparative phylogenetic methods sneaking in.  It’s a natural union — expert functional morphology is the key to good … Continue reading →

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Shorting Mebane Faber

July 19, 2011
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Shorting Mebane Faber

Although I do not personally know Mebane Faber, I know enough that I do not want to short him. However, I thought it would be insightful to see how the short side of his “A Quantitative Approach To Tactical Asset Allocation” might look.  Once ...

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The Road to Default: The Other Side of the Story

July 19, 2011
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The Road to Default: The Other Side of the Story

Okay so I was gliding through the articles of CNBC.com and stumbled upon one titled, "A Downgrade of U.S. Debt Won't Matter as Much as You Think." The argument laid down in this piece is that insurance companies and pension funds are required to hold h...

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Looking for NppToR beta testers.

July 19, 2011
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NppToR 2.6 is coming with improved flexibility and speed. Testers needed before setting as default.

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Version 1.3 Verified

July 19, 2011
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Version 1.3 Verified

Whew, For a few hours last night I struggled with a bug, err several bugs. In the end some of the bugs were mine, some of them were “upstream” and some of them were  far “upstream”.  Image  bugs in R 2.13.1. But the math bugs ( or flat out errors on my part) have all

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Growth in data-related jobs

July 19, 2011
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Growth in data-related jobs

At job-search site indeed.com, you can take a look at trends in the use of keywords used in job postings. As you might expect, job postings containing terms related to making sense from data are on the rise. Here's the growth in job postings mentioning big data: And here's statistician: The drop-off in demand for statisticians 2011 seems to...

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Extracting EOD Data from BSE

July 19, 2011
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Extracting EOD Data from BSE

Earlier, I had worked around to download Bhavcopy from NSE. Now, I would make a similar attempt to download the BSE BhavcopyObjective: Download Bhavcopy (Equity) from http://www.bseindia.com and save only relevant columns Date, Symbol, Name, Open, High...

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