How to use the pickRandom function from mathjs

vectorator.js

GitHub: jlamendo/sorrow

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            len = 4000;
            type = "max";         
        }
    })*/
     //   console.log(m.pickRandom(Object.keys(_this.methods)), type, len, opts)
        var ctx = m.pickRandom(Object.keys(_this.methods))
        return _this.methods[ctx].apply(_this.tContexts[ctx], [opts]);
};

_this.load = function(file) {

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index.js

GitHub: jly36963/notes

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// probability
math.combinations(7, 5) // number of ways picking 'k' unordered outcomes from 'n' possibilities
math.combinationsWithRep(7, 5) // combinations with replacement
math.factorial(a);
math.permutations(n) // number of possible ordered combinations
math.pickRandom(numbers) // random selection from array
math.randomInt(0, 11) // random int (min <= x < max)

// linalg
// https://mathjs.org/docs/reference/functions.html#matrix-functions

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+ 6 other calls in file

Cppn.js

GitHub: brin-eris/basic-bots

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this.functions = this.buildFunctionsArray();


  this.functionMapX  = new Array(1);
      for(var i=0; i<this.functionMapX.length; i++){
        this.functionMapX[i] = Mathjs.pickRandom(this.functions);
  }

  this.functionMapY  = new Array(1);
      for(var i=0; i<this.functionMapY.length; i++){

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+ 15 other calls in file

employee.js

GitHub: Drakmord2/node-swarm-intelligence

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/**
 * x(t+1) = x(t) + ø * (x(t) - randx)
 */
explore() {
    if (this.trial <= config.abc.max_trials) {
        let component = mathjs.pickRandom(this.position);
        let phi       = mathjs.random([1, dimensions], -1, 1)[0];

        let sub             = mathjs.subtract(this.position, component);
        let mul             = mathjs.dotMultiply(sub, phi);

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onlooker.js

GitHub: Drakmord2/node-swarm-intelligence

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/**
 * x(t+1) = x(t) + ø * (x(t) - randx)
 */
exploit(sources) {
    let bee         = mathjs.pickRandom(sources);
    let position    = bee.position;
    let fitness     = bee.fitness;

    if (this.trial <= config.abc.max_trials) {

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+ 3 other calls in file