$( '.chapter-content').dataPoints( {
                    'generators': {
                        '.bagels': function() {
                            var $dataPoint = $( this ),
                                $number = $dataPoint.find( '.data-point-number' ),
                                $text = $dataPoint.find( '.data-point-text' ),
                                number;

                            if ( parseInt( $number.text(), 10 ) > 1 ) {
                                $text.text( 'bagels' );
                            } else {
                                $text.text( 'bagel' );
                            }
                        },
                        '.another-selector': function() {
                            // do different stuff here to calculate the number and then return it
                            return 45;
                        }
                    }
                } );