2643 search results for "map"

Finding R in a Hadoop World

October 31, 2013
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Finding R in a Hadoop World

by Joseph Rickert The following is a brief report of all things R encountered in my not quite random, but nevertheless far from determined, walk through the O'Reilly Strata / Hadoop World Conference held this week in NYC. To start off, I had the pleasure of doing a 9:00 AM Monday morning joint tutorial with Antonio Piccolboni, the principal...

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High resolution graphics with R

October 29, 2013
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High resolution graphics with R

For most purposes PDF or other vector graphic formats such as windows metafile and SVG work just fine. However, if I plot lots of points, say 100k, then those files can get quite large and bitmap formats like PNG can be the better option. I just have to be mindful of the resolution.As an example I create the following...

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Cont model – Part II

October 28, 2013
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Cont model – Part II

In my last post I have investigated properties of Cont model (you can download the paper here). Today I would like to show how we can use simulations to further simplify its analysis.First let us start with the observation that the model does not reall...

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Call them what you will

October 28, 2013
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I’ve been playing around with the R package texreg for creating combined regression tables for multiple models. It’s not the only package to do that – see here for a review – but it’s often handy to be able to generate both ascii art, latex, and html versions of the same table using almost identical

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Warning: Mac OS 10.9 Mavericks and R Don’t Play Nicely

October 27, 2013
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For some reason I was compelled to update my Mac’s OS and R on the same day. (I know…) It didn’t go well on several accounts and I mostly blame Apple. Here are the details. I updated R to version … Continue reading →

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Montreal R User Group – Dr. Ramnath Vaidyanathan on his rCharts package

October 27, 2013
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Montreal R User Group –  Dr. Ramnath Vaidyanathan on his rCharts package

Monday, October 28, 2013. 6:00pm at Notman House 51 Sherbrooke W., Montreal, QC. We are very pleased to welcome back Dr. Ramnath Vaidyanathan for a talk on interactive documents as it relates to his excellent rCharts package. Bringing a laptop to follow along is highly encouraged. I would recommend installing rCharts prior to the workshop. library(devtools) pkgs <- c(‘rCharts’, ‘slidify’, ‘slidifyLibraries’) install_github(pkgs, ‘ramnathv’, ref

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Mining Research Interests – or: What Would Google Want to Know?

October 25, 2013
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Mining Research Interests – or: What Would Google Want to Know?

I am a regular visitor of Google’s research page where they post all of their latest and upcoming scientific papers. Lately I have thought whether it would be possible to statistically extract some of the meta-information from the papers. Here’s the result of the analysis of the papers’ titles produced with just a few

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xkcd: A webcomic of the internet, small talk, meta discussions, and whimsical phantasmagoria

October 25, 2013
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xkcd: A webcomic of the internet, small talk, meta discussions, and whimsical phantasmagoria

I've recently rediscovered my affection for xkcd , and what better way to show it than to perform a data analysis on the comic's archives. In this post, we use Latent Dirichlet Allocation (LDA) to mine for topics from xkcd strips, and see if it live...

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An OpenBLAS-based Rblas for Windows 64: Step-by-step

October 24, 2013
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As a result of my previous post, I’ve had a number of requests to describe how I compiled the BLAS, so I’ll do so below. Of course, the necessary caveats, I am not a programmer nor do I play one on the radio so I probably cannot debug any issue anyone may have. Use the Read the full...

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School’s out: Building Interactive R Apps with shiny, googleVis in our R Academy

October 24, 2013
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School’s out: Building Interactive R Apps with shiny, googleVis in our R Academy

In our R Academy course “Interactive Datavisualization with R” participants learned today how to build interactive graphics in R using the shiny and the googleVis package. Rstudios shiny package is a great way to build an Application for interactive visualizations out of R. For our example App we recreated Hans Rosslings (Gapminder) Visualization which puts

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