docs: function partial( mu, s ) {
  
  	/**
  	* FUNCTION: quantile( p )
  	*	Evaluates the quantile function for a Logistic distribution.
  	*
  	* @private
  	* @param {Number} p - input value
  	* @returns {Number} evaluated quantile function
  	*/
  	return function quantile( p ) {
  		if ( p !== p || p < 0 || p > 1 ) {
  			return NaN;
  		}
  		return mu + s * ln( p / ( 1 - p ) );
  	};
  }