text: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  'use strict';
  
  // MODULES //
  
  var gammaFactory = require( '@stdlib/stats/base/dists/gamma/pdf' ).factory;
  
  
  // MAIN //
  
  /**
  * Returns a function for evaluating the probability density function (PDF) for a chi-squared distribution with degrees of freedom `k`.
  *
  * @param {NonNegativeNumber} k - degrees of freedom
  * @returns {Function} PDF
  *
  * @example
  * var pdf = factory( 0.5 );
  *
  * var y = pdf( 2.0 );
  * // returns ~0.051
  *
  * y = pdf( 1.0 );
  * // returns ~0.141
  */
  function factory( k ) {
  	return gammaFactory( k/2.0, 0.5 );
  }
  
  
  // EXPORTS //
  
  module.exports = factory;
  