code: function detectStep (min, max) {
  	var range = getTransformer(function (a, b) {
  		return Math.abs(a - b);
  	})(max, min);
  
  	var step = getTransformer(function (a) {
  		return a < 100 ? 0.01 : 1;
  	})(range);
  
  	return step;
  }
docs: Default step detector
  Step is 0.1 or 1