1653 search results for "Ggplot2"

Spatial correlation in designed experiments

October 20, 2011
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Spatial correlation in designed experiments

Last Wednesday I had a meeting with the folks of the New Zealand Drylands Forest Initiative in Blenheim. In addition to sitting in a conference room and having nice sandwiches we went to visit one of our progeny trials at … Continue reading →

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Large applications of linear mixed models

October 18, 2011
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Large applications of linear mixed models

In a previous post I summarily described our options for (generalized to varying degrees) linear mixed models from a frequentist point of view: nlme, lme4 and ASReml-R†, followed by a quick example for a split-plot experiment. But who is really … Continue reading →

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Lattice when modeling, ggplot when publishing

October 17, 2011
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Lattice when modeling, ggplot when publishing

When working in research projects I tend to fit several, sometimes quite a few, alternative models. This model fitting is informed by theoretical considerations (e.g. quantitative genetics, experimental design we used, our understanding of the process under study, etc.) but … Continue reading →

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Random art on the web

October 15, 2011
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Random art on the web

Since we explored some statitics of an abstract painting with Pierre (we even have an article in Variances last issue!), I became more sensitive to art linked to randomness. Here are some pointers to related websites I have digged out. Random.org, mentioned here by Pierre, is, at it reads, a true random number service that

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Mining Lending Club’s Goldmine of Loan Data Part I of II – Visualizations by State

October 14, 2011
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Mining Lending Club’s Goldmine of Loan Data Part I of II – Visualizations by State

I have a few friends that keep bragging about their 14% annual returns by investing their money with Lending Club, a peer-to-peer lending service that cuts out the complexities and difficulties of getting approved for a loan through a bank. To give you an idea of the sheer amount of volume Lending Club has been

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A true data-doodler – Christophe Ladroue (R ddly and plyr on Triathlon Results)

October 12, 2011
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To me, this post by Christophe Ladroue personifies what data doodlers do.They take a dataset that is of interest to them (In his case, his triathlon results) and then they manipulate the numbers to see what insights can be drawn. Most bloggers only sho...

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What’s there to like about R?

October 12, 2011
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What’s there to like about R?

Update 10/11/2011: There’s a good discussion on RedditUpdate 10/12/2011: Note manipulate package and highlight data.table packageThe R statistical computing platform is a rising star that’s been gaining popularity and attention, but it gets no respect in the hood. It’s telling that a popular guide to R is called The R Inferno, and that advocacy pieces Follow me on...

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Setting plots side by side

October 11, 2011
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Setting plots side by side

This is simple example code to display side-by-side lattice plots or ggplot2 plots, using the mtcars dataset that comes with any R installation. We will display a scatterplot of miles per US gallon (mpg) on car weight (wt) next to … Continue reading →

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The Work of the 1 Percent and the 0.1 Percent

October 10, 2011
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The Work of the 1 Percent and the 0.1 Percent

The Occupy Wall Street movement chants "We are the 99 percent, you are the 1 percent." It's a catchy refrain, and there are many excellent reasons to put the focus on Wall Street in the struggle for economic and political justice in the US. But even singling out one percent of the US means we

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Artist view of crimes in London

October 10, 2011
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Artist view of crimes in London

At first sight, one could think this picture is a scale model of some narrow moutains, like Bryce Canyon… Actually it represents crimes in East London, an cardboard artwork by the Londoner artist Abigail Reynolds, called Mount Fear.  Here is what can be read on the artist’s webpage: The terrain of Mount Fear is generated

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