Oh, can it be, the voices calling me, they get lost and out of time (Little Black Submarines, The Black Keys) Last October I did this experiment about complex domain coloring. Since I like giving my posts a touch of randomness, I have done this experiment. I plot four random ...

Romeo, Juliet, balcony in silhouette, makin o’s with her cigarette, it’s juliet (Flapper Girl, The Lumineers) Two weeks ago I published this post for which designed two different visualizations. At the end, I decided to place words on the map of the United States. The discarded visualization was ...

Dici che il fiume trova la via al mare e come il fiume giungerai a me (Miss Sarajevo, U2) One way to calculate approximately the area of some place is to circumscribe it into a polygon of which you know its area. After that, generate coordinates inside the polygon and ...

Sweet home Alabama, Where the skies are so blue; Sweet home Alabama, Lord, I’m coming home to you (Sweet home Alabama, Lynyrd Skynyrd) This is the second post I write to show the abilities of twitteR package and also the second post I write for KDnuggets. In this case ...

Fill a cocktail shaker with ice; add vodka, triple sec, cranberry, and lime, and shake well; strain into a chilled cocktail glass and garnish with orange twist (Cosmopolitan Cocktail Recipe) This is a tribute to Blaise Pascal and Joseph Fourier, two of the greatest mathematicians in history. As Pascal did ...

If everybody had an ocean, across the U.S.A., then everybody’d be surfin’ like California (Beach Boys, Surfin’ U.S.A.) I was invited to write a post for Domino Data Lab, a company based in California which provides a cloud-based machine learning platform which enables companies to ...

Match.com will bring more love to the planet than anything since Jesus Christ (Gary Kremen, founder of Match.com) Charlie is a brilliant 39 years old mathematician living in Massachusetts. He lives alone and has dedicated his whole life to study. He has realized lately that theorems and books no ...

Would love to get a post from you for KDnuggets (Gregory Piatetsky, KDnuggets President) Some days ago, Gregory Piatetsky invited me to write a post for KDnuggets. I couldn’t say no. He suggested to me some topics and I decided to experiment around climate change to demonstrate how easy ...

Control is what we already know. Control is where we have already ventured. Control is what helps us predict the future. (Merkbar) Maths and music get along very well. Last December I received a mail from a guy called Jesper. He is one of the two members of Merkbar: a ...

The chess-board is the world; the pieces are the phenomena of the universe; the rules of the game are what we call the laws of Nature (T. H. Huxley) One of the greatest packages I discovered recently is googleVis. While plotting with ggplot can be sometimes very arduous, doing plots ...

A technique succeeds in mathematical physics, not by a clever trick, or a happy accident, but because it expresses some aspect of physical truth (O. G. Sutton) Imagine three unbalanced coins: Coin 1: Probability of head=0.495 and probability of tail=0.505 Coin 2: Probability of head=0.745 and probability of tail=0.255 Coin 3: Probability of ...

Who knows? Could be the tropic heat or something that I eat, that makes me gonzo (I’m Going Bananas, Madonna) This is the first post of a new category called “Going Bananas” in which I will post totally crazy experiments. My aim is to try some techniques without taking ...

Facts are stubborn, but statistics are more pliable (Mark Twain) According to World Health Organization, exclusive breastfeeding is recommended up to 6 months of age, with continued breastfeeding along with appropriate complementary foods up to two years of age or beyond. Thus, the defining characteristic of continued breastfeeding is that the ...

She makes the sound the sea makes to calm me down (Dissolve Me, Alt-J) Searching how to do draw chord diagrams in the Internet with ggplot2 I found a very-easy-to-use package called circlize which does exactly that. A chord diagram shows relationships between things so the input to draw it ...

Why do some mathematicians wear a white coat? Are they afraid to be splashed by an integral? (Read on Twitter) If you run into someone wearing a white coat who tells you something like e raised to minus 3 by zero point five plus x squared plus y squared between two ...

Gravity, release me, and don’t ever hold me down, now my feet won’t touch the ground (Coldplay, Life In Technicolor II) Inspired by this nice post and by this cover of a Coldplay’s album: I have dared to do this using ggplot, polar coordinates and Google Fonts: ...

An invisible red thread connects those destined to meet, regardless of time, place or circumstances. The thread may stretch or tangle, but never break (Ancient Chinese Legend) I use to play once a year with my friends to Secret Santa (in Spain we call it Amigo Invisible). As you can ...

I was getting ready for school and about to wear my uniform when I remembered that our principal had told us not to wear uniforms. So I decided to wear my favorite pink dress (Malala Yousafzai) After reading the diary of a Pakistani schoolgirl and Malala’s history, there is ...