3538 search results for "git"

Italian Bio R Day 2012 – Slides on Reproducible Research using R and Bioconductor

December 3, 2012
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Italian Bio R Day 2012 – Slides on Reproducible Research using R and Bioconductor

Thanks to Parco Tecnologico Padano (PTP), I was invited to speak at the first Italian Bio R Day that was held in Lodi on 30 November 2012. It was a nice opportunity to talk and listen about different aspects of R from practitioners with different backg...

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Scaling legislative roll call votes with wnominate

December 3, 2012
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Scaling legislative roll call votes with wnominate

We’ve used NOMINATE scaling data before here at is.R(), but today’s Gist shows, in just a few lines of code, how to download up-to-date roll call data and run those votes through Keith Poole (et. al.)’s DW-NOMINATE procedure. It&#82...

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analyze the basic stand alone medicare claims public use files (bsapufs) with r and monetdb

December 3, 2012
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the centers for medicare and medicaid services (cms) took the plunge.  the famous medicare 5% sample has been released to the public, free of charge.  jfyi - medicare is the u.s. government program that provides health insurance to 50 million...

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forecast package v4.0

December 2, 2012
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forecast package v4.0

A few days ago I released version 4.0 of the forecast package for R. There were quite a few changes and new features, so I thought it deserved a new version number. I keep a list of changes in the Changelog for the package, but I doubt that many people look at it. So for the record, here are...

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The State of Statistics in Julia

December 2, 2012
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Updated 12.2.2012: Added sample output based on a suggestion from Stefan Karpinski. Introduction Over the last few weeks, the Julia core team has rolled out a demo version of Julia’s package management system. While the Julia package system is still very much in beta, it nevertheless provides the first plausible way for non-expert users to

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Rolling means (and other functions) with zoo

December 2, 2012
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Rolling means (and other functions) with zoo

The zoo package is designed for use with (potentially irregular) time series data. It is widely used for any number of applications, but among its most frequently useful functions are the roll* functions, such as rollmean, rollmedian, rollmax, rollapp...

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Financial Turbulence Example

December 1, 2012
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Financial Turbulence Example

Today, I want to highlight the Financial Turbulence Index idea introduced by Mark Kritzman and Yuanzhen Li in the Skulls, Financial Turbulence, and Risk Management paper. Timely Portfolio did a great series of posts about Financial Turbulence: Part 1, Part 2, Part 3. As example, I will compute Financial Turbulence for the equal weight index

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Using XML to grab tables from the web

December 1, 2012
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Using XML to grab tables from the web

We’re going to try, this December, to bring you an “Advent CalendaR,” for each of the 24 days leading up to Christmas. Each day, our hope is to unwrap a useful R package to show you a useful or interesting function inside! Today&#821...

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Trading with Support Vector Machines (SVM)

November 30, 2012
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Trading with Support Vector Machines (SVM)

Finally all the stars have aligned and I can confidently devote some time for back-testing of new trading systems, and Support Vector Machines (SVM) are the new “toy” which is going to keep me busy for a while. SVMs are a well-known tool from the area of supervised Machine Learning, and they are used both

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Lauren Yamane on Matrix Population Models in R

November 30, 2012
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Lauren Yamane on Matrix Population Models in R

Last week in Davis R Users’ Group, Lauren Yamane showed us how she created and analyzed a stochastic age-structured population in R. Her examples are below. Her original scripts can be found as *.Rmd files here A note to UC Davis students: This topic and others will be covered by Marissa Baskett and Sebastian Schreiber in...

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