2594 search results for "Map"

No surprises: More people tweet more. Visualizing twitter counts during election day.

October 20, 2013
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No surprises: More people tweet more. Visualizing twitter counts during election day.

As if the R world needed another example of Twitter visualizations, right? Well, here we go anyway.At the beginning of 2013, Pablo Barberá released the first version of his R package 'streamR' (CRAN link). With this package, you can tap into the streaming capabilities of the Twitter API. I did so for 10 consecutive days. Luckily,...

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Subsidies, Revenues, and Expenses of NCAA Division I Public Schools Athletic Departments – Visualizations using rCharts and animint generated interactive ggplots

October 18, 2013
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Two interesting articles in recent issues of The Atlantic linked sports to tax-payer dollars. The first few lines of Gregg Easterbrook’s article, titled How the NFL Fleeces Taxpayers, were: “Taxpayers fund the stadiums, antitrust law doesn't apply to broadcast deals, the league enjoys nonprofit status, and Commissioner Roger Goodell makes $30 million a year. It's...

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Introduction to Feature selection for bioinformaticians using R, correlation matrix filters, PCA & backward selection

October 17, 2013
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Introduction to Feature selection for bioinformaticians using R, correlation matrix filters, PCA & backward selection

Bioinformatics is becoming more and more a Data Mining field. Every passing day, Genomics and Proteomics yield bucketloads of multivariate data (genes, proteins, DNA, identified peptides, structures), and every one of these biological data units are described by a number of features: length, physicochemical properties, scores, etc. Careful consideration of which features to select when trying...

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Hungarian RUG on ggplot2

October 17, 2013
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Hungarian RUG on ggplot2

The rather new-born Budapest Users of R Network, the only Hungarian R User Group so far, with already 85+ members, continues its really young traditions to have talks on data visualization and providing a place for Hungarian R users to socialize while having some free pizza and drinks.Our next session will focus on...

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Cont model back after a year

October 16, 2013
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Cont model back after a year

During ESSA2013 conference I had a discussion about Cont model I have commented a year ago.In original paper Cont highlights that his model produces distribution of returns characterized by positive excess kurtosis. In this post I want to investig...

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Latent Gaussian Models and INLA

October 16, 2013
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Latent Gaussian Models and INLA

If you read my post about Fast Bayesian Inference with INLA you might wonder which models are included within the class of latent Gaussian models (LGM), and can therefore be fitted with INLA. Next I will give a general definition about LGM and later I will describe three completely different examples that belong to this

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Creating Colorblind-Friendly Figures

October 16, 2013
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Creating Colorblind-Friendly Figures

Color is often used to display an extra dimension in plots of scientific data. Unfortunately, everyone does not decode color in exactly the same way. This is especially true for those with color vision deficiency, which affects up to 8 percent of the population in its 2 most common forms. As …

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A Bayesian Model for a Function Increasing by Chi-Squared Jumps (in Stan)

October 16, 2013
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A Bayesian Model for a Function Increasing by Chi-Squared Jumps (in Stan)

(This article was first published on David Chudzicki's Blog, and kindly contributed to R-bloggers) This post will describe a way I came up with of fitting a function that’s constrained to be increasing, using Stan. If you want practical help, standard statistical approaches, or expert research, this isn’t the place for you (look up “isotonic regression” or “Bayesian isotonic...

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Next Kölner R User Meeting: 18 Oktober 2013

October 14, 2013
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Next Kölner R User Meeting: 18 Oktober 2013

Quick reminder: The next Cologne R user group meeting is scheduled for this Friday, 18 October 2013. We will discuss and hear about the apply family of functions and the XLConnect package. Further details and the agenda are available on our KölnRUG Meetup site. Please sign up if you would like to come along. Notes from past...

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Interactive 3D in Shiny (shinyRGL)

October 13, 2013
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shinyGL

The rgl package has been used to produce rich, interactive 3D graphics within R using the OpenGL framework for some time. The rgl authors also added the ability to export to WebGL, allowing R authors to produce interactive 3D graphics that were accessible from within any modern web browser. This functionality can now be leveraged

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