2676 search results for "gis"

Example Reproducible Report using R Markdown: Analysis of California Schools Test Data

May 18, 2012
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Example Reproducible Report using R Markdown:  Analysis of California Schools Test Data

This is a quick set of analyses of the California Test Score dataset. The post was produced using R Markdown in RStudio 0.96. The main purpose of this post is to provide a case study of using R Markdown to prepare a quick reproducible report. It provides examples of using plots, output, in-line R code, and...

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Proportion of marriages ending in divorce

May 17, 2012
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Proportion of marriages ending in divorce

Over the last two decades families in Mexico have undergone rapid social changes. The proportion of marriages ending in divorce has risen for each cohort since data became available, this is independant of the recently approved express divorce law in...

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More Bixi Data Visualization

May 17, 2012
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More Bixi Data Visualization

I mentioned in a previous post that our team at the recent Hack/Reduce hackathon had some fun with a data set which consisted of Bixi station states at minute level temporal resolution. In addition to pulling out and plotting the flux at each station on an hourly basis, we also plotted the system state (number

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Getting Started with R Markdown, knitr, and Rstudio 0.96

May 16, 2012
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Getting Started with R Markdown, knitr, and Rstudio 0.96

This post examines the features of R Markdown using knitr in Rstudio 0.96. This combination of tools provides an exciting improvement in usability for reproducible analysis. Specifically, this post (1) discusses getting started with R Markdown and knitr in Rstudio 0.96; (2) provides a basic example of producing console output and plots...

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My take on polar bar (a.k.a. consultant’s) charts

May 16, 2012
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My take on polar bar (a.k.a. consultant’s) charts

Once upon a time, when I was working at Johnson & Johnson (pharma branch), I was surrounded by a bunch of programmers working to develop (among other things) a nifty piece of software for internal use. Part of it was later released as freeware, cal...

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Revolution Newsletter: May 2012

May 16, 2012
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The most recent edition of the Revolution Newsletter is out. The news section is below, and you can read the full May edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. New R Training Courses Announced. Three new R courses from leading R experts are...

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Stepping Outside My Open-Source Comfort Zone: A First Look at Golden Helix SVS

May 16, 2012
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Stepping Outside My Open-Source Comfort Zone: A First Look at Golden Helix SVS

I'm a huge supporter of the Free and Open Source Software movement. I've written more about R than anything else on this blog, all the code I post here is free and open-source, and a while back I invited you to steal this blog under a cc-by-sa license....

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Express Divorce in Mexico

May 16, 2012
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Express Divorce in Mexico

On October 2008 Mexico's capital, the Federal District, approved a version of no-fault divorce locally known as "express divorce". With the new law the requesting spouse no longer had to provide a cause to dissolve the marriage and the couple no longer had to live apart before filing for divorce. Furthermore, the process of...

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Using R to graph a subject trend in PubMed

May 15, 2012
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Using R to graph a subject trend in PubMed

The traditional way to show that your topic is worth studying in front of an audience is to show the state of the field based on a literature review. This is especially true if your subject is obscure except to a handful of scientists in the world.I was confronted with this problem more than once and the last time...

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Interactive reports in R with knitr and RStudio

May 15, 2012
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Interactive reports in R with knitr and RStudio

Last Saturday I met the guys from RStudio at the R in Finance conference in Chicago. I was curious to find out what RStudio could offer. In the past I have used mostly Emacs + ESS for editing R files. Well, and what a surprise it was. JJ, Joe and Josh ...

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