如何动态改变这个随机数生成器的曲线？

function logb(val, base) {
    return Math.log10(val) / Math.log10(base);
}
function getRandomNumber(min,max){
    return Math.floor(Math.random()*(max-min+1)+min);
}
function getRandomLowNumber(min, max, factor) {
    var base = 1.0 / factor;
    var evtcnt = Math.floor(Math.pow(base, max-min+1) - 1) / (base-1);
    var rndnum = getRandomNumber(1, evtcnt);
    var expflr = Math.floor(logb((rndnum-1) * (base-1) + 1, base));
    var rndres = max - expflr;
    return rndres;
}
function runit() {
    var min = document.getElementById('input-min').value;
    var max = document.getElementById('input-max').value;
    var factor = document.getElementById('input-factor').value;
    var times = document.getElementById('input-times').value;
    var list = {};

    for (let i = 0; i < times; i++) {
        var number = getRandomLowNumber(min, max, factor);
        if (typeof list[number] == 'number') {
            list[number]++;
        } else {
            list[number] = 1;
        }
    }
    console.log('Min: ', min);
    console.log('Max: ', max);
    console.log('Factor: ', factor);
    console.log('Iterations: ', times);
    console.log('List: ', list);
}
function runClippy() {
    var name = 'Clippy';
    if (clippy.load._data[name]) {
        return;
    }
    clippy.load(name, function(agent) {
      var animations = agent.animations();
      $('.js-states').text(animations.join(' '));
      agent.show();
      agent.moveTo(400, 30);
      agent.speak("Hello, I see you're trying to run this sample. My name is " + name + " and yacc sent me here to help.");
      agent.moveTo(200, 100);
      agent.speak("There are four input fields to put parameters.");
      agent.moveTo(300, 50);
      agent.gestureAt(-100,50);
      agent.speak("The first two specify the minimum and maximum random value.");
      agent.moveTo(90,50);
      agent.gestureAt(0,-50);
      agent.speak("I'll put starting values for you here.");
      agent._addToQueue(function(complete) {
          $('.input-min').val("1");
          $('.input-max').val("100");
          complete();
      });
      agent.gestureAt(-100,50);
      agent.speak("The next field specifies the factor that will decrease the probability for each successor. It should range between 0 (exclusively) and 1. Let's try a value here.");
      agent._addToQueue(function(complete) {
          $('.input-factor').val("0.5");
          complete();
      });
      agent.moveTo(550, 70);
      agent.gestureAt(-100,50);
      agent.speak("The final input field is used to specify the amount of random numbers to generate. I'll fill it in for you.");
      agent._addToQueue(function(complete) {
          $('.input-times').val("100");
          complete();
      });
      agent.speak("Now, did you notice the big button at the bottom of the form? You can push it to start the calculation.");
      agent.moveTo(50, 120);
      agent.gestureAt(-100,50);
      
      agent.moveTo(90,50);
      agent.gestureAt(0,-50);
      agent.speak("Be careful with the amount of calculations. If the task takes too long, it might be aborted.");
      agent.moveTo(630, 200);
      agent.speak("So, now you can start on your own calculation of randoms. Be sure to fill in the fields properly, so that min <= max, or 0 < factor <= 1. Our lab is so busy at the moment that we spared a few safety belts.");
      agent._addToQueue(function(complete) {
           $('.wmd-input').val("# What are you trying to achieve?");
          complete();
      });
      agent.moveTo(400, 30);
      agent.gestureAt(-100, 50);
      agent.speak("Please describe in short what you are trying to achieve");
      agent._addToQueue(function(complete) {
           $('.wmd-input').val("# What are you trying to achieve?\n\n# What is the problem you're facing?");
          complete();
      });
      agent.moveTo(400, 70);
      agent.gestureAt(-100, 50);
      agent.speak("Please describe the error you're getting, and/or post the error message you're getting");
      agent._addToQueue(function(complete) {
           $('.wmd-input').val("# What are you trying to achieve?\n\n# What is the problem you're facing?\n\n#Show the code causing the problem");
          complete();
      });
      agent.moveTo(400, 90);
      agent.gestureAt(-100, 50);
      agent.speak("Please post the code that causes your problem. Try to post it without clutter or unrelated code.");
      
      agent.speak("People who answer should be able to use your code to reproduce the error. Please lookup MVCE in the stack overflow help .");
      agent.moveTo(630, 200);
    });
}
$(document).ready(function(){
  // $('.wmd-input').one('focus', function() {runClippy();});
  $('.input-min').one('focus', runClippy);
  $('.input-max').one('focus', runClippy);
  $('.input-factor').one('focus', runClippy);
  $('.input-times').one('focus', runClippy);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel='stylesheet prefetch' href='https://cdn.rawgit.com/smore-inc/clippy.js/master/build/clippy.css'>
<!--link rel="stylesheet prefetch" href="https://cdn.sstatic.net/Sites/stackoverflow/all.css?v=b0fb54f66683"-->
<script src='https://cdn.rawgit.com/smore-inc/clippy.js/master/build/clippy.min.js'></script>
<div>
Min: <input value="0" id="input-min" class="input-min processed">
Max: <input value="100" id="input-max" class="input-max processed"><br>
Factor: <input value="0.5" id="input-factor" class="input-factor processed"><br>
#-Runs: <input value="1000000" id="input-times" class="input-times processed"><br>
<button style="float: center;" onclick="runit()">---  Run that algorithm  ---</button>
</div>