score:1

Accepted answer

by default highcharts will round labels to two decimals. you can change that using yaxis.labels.formatter. see: 

        yaxis: {
            max: 33999.253,
            min: 33999.219,
            title: {
                text: 'm',
                style: {
                    color: '#000000',
                    fontweight: 'bold'
                }
            },
            labels: {
                formatter: function() {
                    return this.value;
                },
                style: {
                    color: '#000000'
                }
            }
        },

and demo: http://jsfiddle.net/nzjug/4/

score:1

there is a simple solution for this,

use your own formatter for labels

            yaxis: {
                max: 33999.253,
                min: 33999.219,
                title: {
                    text: 'm',
                    style: {
                        color: '#000000',
                        fontweight: 'bold'
                    }
                },
                labels: {
                    style: {
                        color: '#000000'
                    },
                    formatter: function () {
                        return this.value
                    }
                }
            },

updated your fiddle here: http://jsfiddle.net/nzjug/5/


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