Blog Archives

Cramer’s Stock Pick Recommendations Analyzed

October 16, 2010
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Cramer’s Stock Pick Recommendations Analyzed

Bill Alpert of Barron’s has demonstrated the use of R in financial journalism as he criticized the performance of Jim Cramer’s stock picks.  Patrick Burns was an advisor for the analysis done in the article.  R was an important tool that allowed them to do their research as indicated by Burns in his...

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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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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
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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...

Read more »

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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