Blog Archives

Climatic Change At A Glance

January 7, 2016
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Climatic Change At A Glance

Mmm. Lost a planet, Master Obi-Wan has. How embarrassing (Yoda, Attack Of The Clones) Some time ago I published this post in KDnuggets in which I analyze historical temperatures to show how we are gradually heading toward a warmer planet. Simple data science to obtain a simple (and increasingly accepted) conclusion: the global warming is … Continue reading...

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Phyllotaxis By Shiny

December 14, 2015
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Phyllotaxis By Shiny

Antonio, you don’t know what empathy is! (Cecilia, my beautiful wife) Spirals are nice. In the wake of my previous post I have done a Shiny app to explore patterns generated by changing angle, shape and number of points of Fermat’s spiral equation. You can obtain an almost infinite number of images. This is just … Continue reading...

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Hypnotical Fermat

December 1, 2015
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Hypnotical Fermat

Se le nota en la voz, por dentro es de colores (Si te vas, Extremoduro) This is a gif generated with 25 plots of the Fermat’s spiral, a parabolic curve generated through the next expression: where is the radius, is the polar angle and is simply a compress constant. Fermat showed this nice spiral in … Continue reading...

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Polar Circles

November 16, 2015
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Polar Circles

You cannot find peace by avoiding life (Virginia Woolf) Combining polar coordinates, RColorBrewer palettes, ggplot2 and a simple trigonometric function to define the width of the tiles is easy to produce nice circular plots like these: Do you want to try? Here you have the code:

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The Batman’s Ecosystem

November 3, 2015
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The Batman’s Ecosystem

If I weren’t crazy, I’d be insane! (Joker) I present today a dynamical D3.js plot where I combine three things: The Batman curve A text mining analysis to obtain most common words from the Batman’s page at Wikipedia A line plot using morris.js library of rCharts package where point labels are the words obtained in … Continue reading...

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Visualising The Evolution Of Migration Flows With rCharts

October 19, 2015
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Visualising The Evolution Of Migration Flows With rCharts

Heaven we hope is just up the road (Atlas, Coldplay) Following with the analysis of migration flows, I have done next two visualizations. These charts are called bump charts and are very suitable to represent rankings. This is what I have done: Obtaining top 20 countries of the world according to % of migrants respect … Continue reading...

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A Visualization Of The 100 Greatest Love Songs ft. D3.js

October 12, 2015
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A Visualization Of The 100 Greatest Love Songs ft. D3.js

What would you do? If my heart was torn in two (More Than Words, Extreme) Playing with rCharts package I had the idea of representing the list of 100 best love songs as a connected set of points which forms a heart. Songs can be seen putting mouse cursor over each dot. This is an … Continue reading...

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A Segmentation Of The World According To Migration Flows ft. Leaflet

September 29, 2015
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A Segmentation Of The World According To Migration Flows ft. Leaflet

Up in the sky you just feel fine, there is no running out of time and you never cross a line (Up In The Sky, 77 Bombay Street) In this post I analyze two datasets from Enigma: Migration flows: Every 10 years, since 1960, the World Bank estimates migrations worldwide (267.960 rows) World population: Values and percentages of … Continue reading...

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A Simple Interactive Map Of US Prisons With Leaflet

September 8, 2015
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A Simple Interactive Map Of US Prisons With Leaflet

The love of one’s country is a splendid thing. But why should love stop at the border? (Pablo Casals, Spanish cellist) Some time ago, I discovered Enigma, an amazing open platform that unifies billions of records from thousands of government sources to make the world of public data universally accessible and useful. This is the … Continue reading...

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The World We Live In #5: Calories And Kilograms

August 19, 2015
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The World We Live In #5: Calories And Kilograms

I enjoy doing new tunes; it gives me a little bit to perk up, to pay a little bit more attention (Earl Scruggs, American musician) I recently finished reading The Signal and the Noise, a book by Nate Silver, creator of the also famous FiveThirtyEight blog. The book is a very good reading for all … Continue reading...

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