text: define([
  	'knockout', 
      'services/analysis/RLangClass',
  	'databindings',
  ], function (
  	ko,
  	RLangClass
  ) {
  	class TrimByPsArgs extends RLangClass {
  		constructor(data = {}) {
  			super();
  			this.trimFraction = ko.observable(data.trimFraction === 0 ? 0 : data.trimFraction || 0.05).extend({ numeric: 2});
  		}
  	}
  	
  	return TrimByPsArgs;
  });