5042 search results for "git"

MLB Rankings Using the Bradley-Terry Model

August 31, 2013
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MLB Rankings Using the Bradley-Terry Model

Today, I take my first shots at ranking Major League Baseball (MLB) teams. I see my efforts at prediction and ranking an ongoing process so that my models improve, the data I incorporate are more meaningful, and ultimately my predictions are largely accurate. For the first attempt, let’s rank MLB teams using the Bradley-Terry (BT) model. Before we discuss the rankings, we need...

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The Dutch Dataverse Network: a host for the ChEMBL-RDF v13.5 data, and some thoughts in workflow integration

August 31, 2013
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The Dutch Dataverse Network: a host for the ChEMBL-RDF v13.5 data, and some thoughts in workflow integration

Last Thursday, there was a UM library network drink. And as I see a library where knowledge is found, and libraries still rarely think of knowledge as ever being able to be stored outside books and papers, I was happy to see the library promoting the D...

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Knitr/Markdown OpenCPU App

August 30, 2013
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A new little OpenCPU app allows you to knit and markdown in the browser. It has a fancy pants code editor which automatically updates the output after 3 seconds of inactivity. It uses the Ace web editor with mode-r.js (thanks to RStudio for making the latter available). Like all OpenCPU apps, the source package lives in the opencpu app...

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Knitr/Markdown OpenCPU App

August 30, 2013
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Knitr/Markdown OpenCPU App

A new little OpenCPU app allows you to knit and markdown in the browser. It has a fancy pants code editor which automatically updates the output after 3 seconds of inactivity. It uses the Ace web editor with mode-r.js (thanks to RStudio for making the latter available). Like all OpenCPU apps, the source...

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Drafting the Best Starting Lineup in Fantasy Football by Taking into Account Uncertainty in the Projections: An Optimization Simulation

August 29, 2013
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Drafting the Best Starting Lineup in Fantasy Football by Taking into Account Uncertainty in the Projections: An Optimization Simulation

In a previous post, I showed how to determine the best starting lineup to draft using an optimizer tool.  The optimizer identifies the players that maximize your projected points within your risk tolerance.  The optimizer does not take i...

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Drafting the Best Starting Lineup in Fantasy Football by Taking into Account Uncertainty in the Projections: An Optimization Simulation

August 29, 2013
By
Drafting the Best Starting Lineup in Fantasy Football by Taking into Account Uncertainty in the Projections: An Optimization Simulation

In a previous post, I showed how to determine the best starting lineup to draft using an optimizer tool.  The optimizer identifies the players that maximize your projected points within your The post Drafting the Best Starting Lineup in Fantasy Football by Taking into Account Uncertainty in the Projections: An Optimization Simulation appeared first on Fantasy Football Analytics.

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Plot Weekly or Monthly Totals in R

August 29, 2013
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Plot Weekly or Monthly Totals in R

When plotting time series data, you might want to bin the values so that each data point corresponds to the sum for a given month or week. This post will show an easy way to use cut and ggplot2's stat_summary to plot month totals in R wi...

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A simple amortization function

August 29, 2013
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I was working on a project yesterday where I needed to amortize out a bunch of loans to calculate the total interest a borrower would pay if he or she paid the minimum monthly payment for the full term of the loan. I couldn’t find any package in R that already contained the necessary math,

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Applications of Interactivity to Finance

August 28, 2013
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Applications of Interactivity to Finance

Of the nearly infinite ways of using crossfilter and dc.js in finance, the 2 that immediately came to my mind are signal analysis in system building and money manager analysis in due diligence.  My first very basic experiment explores a commonly k...

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Bayesian Estimation of Correlation – Now Robust!

August 28, 2013
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Bayesian Estimation of Correlation – Now Robust!

So in the last post I showed how to run the Bayesian counterpart of Pearson’s correlation test by estimating the parameters of a bivariate normal distribution. A problem with assuming normality is that the normal distribution isn’t robust against outliers. Let’s see what happens if we take the data from the last post with the finishing times...

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