Blog Archives

Amazing Things That Happen When You Toss a Coin 12 Times

June 19, 2016
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Amazing Things That Happen When You Toss a Coin 12 Times

If there is a God, he’s a great mathematician (Paul Dirac) Imagine you toss a coin 12 times and you count how many heads and tails you are obtaining after each throwing (the coin is equilibrated so the probability of head or tail is the same). At some point, it can happen that number of heads and number of tails … Continue reading...

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Women in Orchestras

June 6, 2016
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Women in Orchestras

I believe in the truth of fairy-tales more than I believe in the truth in the newspaper (Lotte Reiniger) In my opinion, this graph is a visual demonstration that we live in a male very chauvinist world. In this experiment I download the members of ten top orchestras of the world with the amazing rvest package. After … Continue reading...

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Playing With Julia (Set)

May 17, 2016
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Playing With Julia (Set)

Viento, me pongo en movimiento y hago crecer las olas del mar que tienes dentro (Tercer Movimiento: Lo de Dentro, Extremoduro) I really enjoy drawing complex numbers: it is a huge source of entertainment for me. In this experiment I play with the Julia Set, another beautiful fractal like this one. This is what I have … Continue reading...

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Zooming

May 2, 2016
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Zooming

You don’t have to be beautiful to turn me on (Kiss, Prince) I discovered recently how easy is to create GIFs with R using ImageMagick and I feel like a kid with a new toy. To begin this new era of my life as R programmer I have done this: First of all, read this … Continue reading...

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The Hype Bubble Map for Dog Breeds

April 18, 2016
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The Hype Bubble Map for Dog Breeds

In the whole history of the world there is but one thing that money can not buy… to wit the wag of a dog’s tail (Josh Billings) In this post I combine several things: Simple webscraping to read the list of companion dogs from Wikipedia. I love rvest package to do these things. Google Trends … Continue reading...

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The Coaster Maker by Shiny

April 4, 2016
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The Coaster Maker by Shiny

The word you invented is well formed and could be used in the Italian language (The Accademia della Crusca regarding to the word “Petaloso”, recently invented by an eight-year-old boy) Are you tired of your old coasters? Do you like to make things by your own? Do you have a PC and a printer at … Continue reading...

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Sunflowers

March 14, 2016
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Sunflowers

The world is full of wonderful things, like sunflowers (Machanguito, my islander friend) Sunflower seeds are arranged following a mathematical pattern where golden ratio plays a starring role. There are tons of web sites explaining this amazing fact. In general, the arrangement of leaves on a plant stem are ruled by spirals. This fact is … Continue reading...

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A Silky Drawing and a Tiny Experiment

March 1, 2016
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A Silky Drawing and a Tiny Experiment

It is a capital mistake to theorize before one has data (Sherlock Holmes, A Scandal in Bohemia) One of my favorite entertainments is drawing things: crazy curves, imaginary flowers, celestial bodies, fractalic acacias … but sometimes I wonder myself if these drawings result interesting to whom arrive to my blog. One way to define interesting could … Continue reading...

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The Gender of Big Data

February 17, 2016
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The Gender of Big Data

When I grow up I want to be a dancer (Carmen, my beautiful daughter) The presence of women in positions of responsibility inside Big Data companies is quite far of parity: while approximately 5o% of world population are women, only 7% of CEOs of Top 100 Big Data Companies are. Like it or not, technology … Continue reading...

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The Unbereable Insolence of Prime Numbers or (Playing to be Ulam)

February 10, 2016
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The Unbereable Insolence of Prime Numbers or (Playing to be Ulam)

So rock me mama like a wagon wheel, rock me mama anyway you feel (Wagon Wheel, Old Crow Medicine Show) This is the third iteration of Hilbert curve. I placed points in its corners. Since the curve has beginning and ending, I labeled each vertex with the order it occupies:Dark green vertex are those labeled … Continue reading...

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