Code snippet from @autocharts with an explanation

autocharts.js

// I search twitter for the following strings. I'm looking specifically for questions that start with
// 'do you' or 'are you', but do not contain certain key words. 
_.when(
  search('"do you" -what -why -who -where -which -when -how'),
  search('"are you" -what -why -who -where -which -when -how')
  )
  .done(function(doYou,areYou) {
    // I take the raw search results and I snip away
    // the "do you" or "are you" and just grab the rest of the sentence. So "Are you a magician?" becomes
    // "a magician". I collect a bunch of these. (I strip away "what" and similar, because "what are you
    // doing?" would parse to "doing", which isn't interesting. I want a subject in the subclause.)
    // the output of the function is actually an array of objects: { preQ: "are you", preA: "you are", text: "a magician" }
    doYou = filterResults(doYou, 'do you', 'you');
    areYou = filterResults(areYou, 'are you', 'you are');
    // Now I flatten both result arrays into one array
    var results = _.flatten([
      doYou,
      areYou
    ]);
    // Now I have a list of results like [{preQ: "do you", preA: "you do", text: "even lift bro"},
    // {preQ: "are you", preA: "you are", text: "my mother"}]
    console.log(results);
    // So that generates a huge list of potential questions and answers.
    
    // next comes the graph generation part. I won't go into much detail but basically I make 5 question nodes, 
    // 3 answer nodes, and then for each question I require two outgoing edges: a Yes and a No. I pick a random other question
    // or other answer for each Yes/No edge to connect to. Answers themselves just sit there. If they get connected to, great.
    // If not, they're orphans and that's okay too. This is an essentially random graph layout, which leads to some wacky
    // results sometimes. But MOST of the time it looks pretty plausible.
    tweet(results);
});