Blog Archives

Benoit Mandelbrot (the Father of Fractals) dead at 85

October 16, 2010
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Benoit Mandelbrot (the Father of Fractals) dead at 85

Nicholas Taleb and Recent tweets indicate that Benoit Mandelbrot has died at age 85.  Mandelbrot was a French and American mathematician, best known as the father of fractal geometry.  His official biography at Yale does n...

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Belgian Astronomers and Exercise Machines

October 6, 2010
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Belgian Astronomers and Exercise Machines

In the twisting paths of human discovery, you never quite know what intellectual enterprise is going to result in a world changing discovery.  For instance, the mathematical notion of expected value did not grow up in a sterile, academic environment.   In 1654 Blaise Pascal was approached by Chevalier de Méré who was interested...

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Belgian Astronomers and Exercise Machines

October 6, 2010
By
Belgian Astronomers and Exercise Machines

In the twisting paths of human discovery, you never quite know what intellectual enterprise is going to result in a world changing discovery.  For instance, the mathematical notion of expected value did not grow up in a sterile, academic environment.   In 1654 Blaise Pascal was approached by Chevalier de Méré who was interested...

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Max Heart Rate Calculations Compared

October 4, 2010
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Max Heart Rate Calculations Compared

Physical fitness has become increasingly technical and data driven.  I started running a bit in the last few months and have been delving into the prevailing wisdom related to assessing ones health as a baseline for pursuing various fitness goals....

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Max Heart Rate Calculations Compared

October 4, 2010
By
Max Heart Rate Calculations Compared

Physical fitness has become increasingly technical and data driven.  I started running a bit in the last few months and have been delving into the prevailing wisdom related to assessing ones health as a baseline for pursuing various fitness goals....

Read more »

Find Duplicate Records in a File

September 24, 2010
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Find Duplicate Records in a File

In the world of data preparation a common task is to identify duplicate records in a file or data set.  A few years ago, I did most development work in Java, and shudder to think of the amount of code required to accomplish this sort of task. &nbs...

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Find Duplicate Records in a File

September 24, 2010
By
Find Duplicate Records in a File

In the world of data preparation a common task is to identify duplicate records in a file or data set.  A few years ago, I did most development work in Java, and shudder to think of the amount of code required to accomplish this sort of task. &nbs...

Read more »

New World Bank Data Available

September 22, 2010
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New World Bank Data Available

Just announced:  World Bank Data features and data are available.  Previous posts have demonstrated how to access and plot this data using R (including the use of the R WDI package).  The chart above can be created using the following pr...

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New World Bank Data Available

September 22, 2010
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New World Bank Data Available

Just announced:  World Bank Data features and data are available.  Previous posts have demonstrated how to access and plot this data using R (including the use of the R WDI package).  The chart above can be created using the following pr...

Read more »

Elder Research Two Day Course

September 18, 2010
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... or what I did on my summer vacation...Just got back from the Elder Research Two Day Course "Tools for Discovering Patterns in Data".  It was a great course that (while not R specific) provides a great overview of Data Mining tools and tec...

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