360 search results for "animation"

Linear model with time series random component

November 14, 2015
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Linear model with time series random component

What do auto-correlated residuals do to your linear model? For training purposes I wanted to illustrate the dangers of ignoring time series characteristics of the random part of a classical linear regression, and I came up with this animation to do it: I like this, because it shows how easy it is to fit something that looks to be...

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Using MonetDB[Lite] with real-world CSV files

November 11, 2015
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MonetDBLite (for R) was announced/released today and, while the examples they provide are compelling there’s a “gotcha” for potential new folks using SQL in general and SQL + MonetDB + R together. The toy example on the site shows dumping mtcars with dbWriteTable and then doing things. Real-world CSV files have headers and commas (MonetDB

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Visualizing Survey Data : Comparison Between Observations

November 8, 2015
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Visualizing Survey Data : Comparison Between Observations

Cybersecurity is a domain that really likes survey, or at the very least it has many folks within it that like to conduct and report on surveys. One recent survey on threat intelligence is in it’s second year, so it sets about comparing answers across years. Rather than go ingo the many technical/statistical issues with

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An Ephemeral Update to daylight()

November 2, 2015
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An Ephemeral Update to daylight()

This occurrence of the bi-annual corruption of the space-time continuum (i.e. changing to/from standard/daylight time) in the U.S. caused me to make a slight change to the code from an older post. The daylight() function now auto-discovers the date and location information (via telize) from the caller, which means all you have to do to

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Instrumental Variables

October 29, 2015
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Instrumental Variables

by Joseph Rickert We all "know" that correlation does not imply causation, that unmeasured and unknown factors can confound a seemingly obvious inference. But, who has not been tempted by the seductive quality of strong correlations? Fortunately, it is also well known that a well done randomized experiment can account for the unknown confounders and permit valid causal inferences....

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Less Drama, More Encoding

October 24, 2015
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Less Drama, More Encoding

Junk Charts adeptly noted and fixed this excessively stylized chart from the WSJ this week: Their take on it does reduct the ZOMGOSH WE ARE DOOMED! look and feel of the WSJ chart: But, we can further reduce the drama by using a more neutral color encoding and encode both the # of outbreaks and

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Silver flows in the seventeenth and eighteenth centuries

October 24, 2015
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Silver flows in the seventeenth and eighteenth centuries

Silver trade I’ve been reading Ronald Findlay and Kevin H. O’Rourke’s 2009 book Power and Plenty: Trade, War, and the World Economy in the Second Millennium and finding it an excellent piece of big picture economic history. I felt the urge to re-express one of their figures (Figure 4.7 in the original). The original is made up of...

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Review: Beautiful Data

October 15, 2015
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Review: Beautiful Data

I've just finished reading Beautiful Data (published by O'Reilly in 2009), a collection of essays edited by Toby Segaran and Jeff Hammerbacher. The 20 essays from 39 contributors address a diverse array of topics relating to data and how it's collected, analysed and interpreted. Since this is a collection of essays, the writing style and The post

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Programmatically create interactive Powerpoint slides with R

October 12, 2015
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Powerpoint is a powerful application for creating presentations, and allows you to include all sorts of text, pictures, animations and interactivity to create a compelling story. Most of the time you'll use the Powerpoint application to create slides, but if you want to include data and/or charts in your slides, in the interests of reproducibility you may want to...

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London Vs Boston

October 2, 2015
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London Vs Boston

By Paulin Shek Following the great success of the EARL conference in London earlier this month, our attention now turns to EARL Boston which will take place between 2-4th November just across the pond; the competition is already on to … Continue reading →

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