Generates sparktweets from input arrays of data.

annotated.js

function (
    a,                          // argument array
    b, s, l, r                  // variables
) {
    l = (                       // l is length of a
        s = a.slice().sort()    // s is copied and sored array of a
    ).length,
    r = s[l - 1] - s[0];        // r is max(a) - min(a)
    b = '';                     // b is return value

    while (l--)                             // loop l times
        b = String.fromCharCode(            // charcode: 9601 - 9608
                                            // (some browser could not render unicode 9604 and 9608 ...?)
            9601 + ~~ 7 * (a[l] - s[0]) / r // use "~~" instead of Math.floor()
        ) + b;                              // concat forward
    return b
}

index.js

function(a,b,s,l,r){l=(s=a.slice().sort()).length,r=s[l-1]-s[0];b='';while(l--)b=String.fromCharCode(9601+~~7*(a[l]-s[0])/r)+b;return b}

LICENSE.txt

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.

package.json

{
  "name": "sparktweet",
  "description": "Generates sparktweets from input arrays of data.",
  "keywords": [
    "sparktweet",
    "plotting"
  ]
}