# Blog Archives

## Going Bananas With Hilbert

February 1, 2016
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It seemed that everything is in ruins, and that all the basic mathematical concepts have lost their meaning (Naum Vilenkin, Russian mathematician, regarding to the discovery of Peano’s curve) Giuseppe Peano found in 1890 a way to draw a curve in the plane that filled the entire space: just a simple line covering completely a … Continue reading...

## A Checkpoint Of Spanish Football League

January 20, 2016
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I am an absolute beginner, but I am absolutely sane (Absolute Beginners, David Bowie) Some time ago I wrote this post, where I predicted correctly the winner of the Spanish Football League several months before its ending. After thinking intensely about taking the risk of ruining my reputation repeating the analysis, I said “no problem, … Continue reading...

## Climatic Change At A Glance

January 7, 2016
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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...

## Phyllotaxis By Shiny

December 14, 2015
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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...

## 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...

## Polar Circles

November 16, 2015
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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:

## The Batman’s Ecosystem

November 3, 2015
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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...

## Visualising The Evolution Of Migration Flows With rCharts

October 19, 2015
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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...

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

October 12, 2015
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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...

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

September 29, 2015
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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...