2588 search results for "map"

Visualizing “ObamaCare-related” Job Cuts

September 28, 2013
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Visualizing “ObamaCare-related” Job Cuts

I was reviewing RSS feeds when I came across this story about “ObamaCare Employer Mandate: A List Of Cuts To Work Hours, Jobs” over on Investors.com. Efficacy of the law notwithstanding, I thought it might be interesting to visualize the data since the folks over at Investors.com provided a handy spreadsheet that they seem to

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R 3.0.2 and RStudio 0.9.8 are released!

September 26, 2013
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R 3.0.2 (codename “Frisbee Sailing”) was released yesterday. The full list of new features and bug fixes is provided below. Also, RStudio v0.98 (in a “secret” preview) was announced two days ago with MANY new features, including: Amazing new debugging …Read more »

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Construire un moteur de reco simple avec R (1/2)

September 25, 2013
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Construire un moteur de rechercheOn va montrer comment on peut construire un moteur de recommandation simple en utilisant les outils de Textmining. Cette construction se fera en deux temps : On construit un moteur de recherche pour identifier par exemple, dans...

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NFL week 3 update

September 25, 2013
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NFL week 3 update

With another NFL week down we are starting to see separation from the contenders and the “better luck next year” teams.  Any paid TV mouthpiece worth their salt will tell you it is a quarterback driven league.  Driven indeed.  In the last post, I dabbled in the simple code of a correlation heat map.  Now, I realize I may...

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US High School Graduation Rates, using googleVis

September 25, 2013
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Here is an analysis and some graphics using googleVis on high school graduation rates in the United States. A report from the US Deparment of Education on increasing high school graduation rates was published earlier this year (Jan 2013) and some summary graphics were shown on the Department’s blog (http://www.ed.gov/blog/2013/01/high-school-graduation-rate-at-highest-level-in-three-decades). However, the above blog only shows one static...

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Introducing imagemetrics

September 25, 2013
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Introducing imagemetrics

References In my recent projects, I had the opportunity to work with the professor Raphaël Proulx who introduced me to several metrics commonly used in landscape ecology for quantifying image texture. In order to make my life easier, I decided to implement...

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Working with intraday data

September 24, 2013
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When working with intraday data, analysts are often facing a large dataset problem. R is well equipped to deal with this but the standard approach has to be modified in some ways. Large dataset means different things to different people. I’m talking here about a dataset of less than 10 columns and 2 to 5

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Going to Plot Some Proportions? Why not Flog ’em First?

September 23, 2013
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Going to Plot Some Proportions? Why not Flog ’em First?

Fractions and proportions can be difficult to plot nicely for a number of reasons: If the proportions are based on small counts (e.g., two of his three computing devices were Apple products) then the calculated proportions will only take on a number of discrete values. Depending on what you have measured there might be many proportions close to the...

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Introducing parallelRandomForest: faster, leaner, parallelized

September 23, 2013
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Together with other members of Andreas Beyer's research group, I participated in the DREAM 8 toxicogenetics challenge. While the jury is still out on the results, I want to introduce my improvement of the R randomForest package, namely parall...

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A few gotchas with R date-time classes

September 21, 2013
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Date and time handling is essential to many modelling and analysis exercises, in R and other languages used for scientific computing. Over the past few months I tackled the mapping of date-time concepts between R and the .NET framework as part of the w...

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