Monthly Archives: June 2011

Example 8.40: Side-by-side histograms

June 13, 2011
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Example 8.40: Side-by-side histograms

It's often useful to compare histograms for some key variable, stratified by levels of some other variable. There are several ways to display something like this. The simplest may be to plot the two histograms in separate panels.SASIn SAS, the most d...

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Using simulation to demonstrate theory: Hardy-Weinberg Equilibrium

June 13, 2011
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Using simulation to demonstrate theory: Hardy-Weinberg Equilibrium

One of my teaching roles is in an introductory Genetics course, where first year students are presented with a wide range of new ideas at a relatively fast pace.  It seems that often, students choose to take a memorization approach to learning the material, rather than taking the chance to think about how and why

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R package DOSE released

June 12, 2011
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Disease Ontology (DO) provides an open source ontology for the integration of biomedical data that is associated with human disease. DO analysis can lead to interesting discoveries that deserve further clinical investigation. DOSE was designed for semantic similarity measure and enrichment analysis. Read More: 619 Words Totally

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REITs for Everybody Might Now Mean REITs for Nobody

June 12, 2011
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REITs for Everybody Might Now Mean REITs for Nobody

THIS IS MY OPINION AND ANALYSIS AND IS NOT INVESTMENT ADVICE.  YOU ARE RESPONSIBLE FOR YOUR OWN GAINS AND LOSSES. I think REITs traditionally attract conservative dividend investors (grandparents), but due to their recent behavior, REITs also attr...

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Listing of Statistics and Machine Learning Conferences

June 12, 2011
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Occasionally, I will query Google with “statistics conferences”, “machine learning conferences” or “pattern recognition conferences” and the like. But often, it is difficult to obtain anything meaningful other than the conferences of which ...

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Two Castles Run 2011

June 12, 2011
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Two Castles Run 2011

I did the Two Castles Run today; it’s a 10km race between Warwick and Kenilworth castles. The organizers were very quick to put the results online and even went the extra mile of offering them as a CSV file. It … Continue reading →

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Additive modelling and the HadCRUT3v global mean temperature series

June 12, 2011
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Additive modelling and the HadCRUT3v global mean temperature series

Earlier, I looked at the HadCRUT3vgl data set using generalized least squares to investigate whether the trend in temperature since 1995 was statistically significant. Here I want to follow-up one of the points from the earlier posting; namely using a … Continue reading →

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Can You Beat the Market with Modern Portfolio Theory? (Part 2)

June 12, 2011
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Can You Beat the Market with Modern Portfolio Theory? (Part 2)

(Obligatory Warning: This post should not be considered investment advice. The author(s) of this blog are not certified financial analysts. Any analysis presented here is meant only as an opinion. Following our opinion could end up losing you a lot of ...

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Animated Plots with R

June 12, 2011
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Animated Plots with R

Using ImageMagick it's pretty easy to make an animated gif from a set of plots. Essentially the way to do it is to save a plot for each frame of the animation and then convert them into a .gif. Here's a simple example that plots binomial density's for ...

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On Crows

June 12, 2011
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On Crows

Today I made the mistake of clicking on the "Next Blog" button, which took me to a rather inane post complaining that crows are (obviously) stupid (because they are sometimes hit by cars). I was reminded that crows are actually quite smart.

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