Question

@Hightcharts stock
How can i have two threshold’s ? for min,max in this graph http://jsfiddle.net/CYJAk/16/

As an example in here there’s only one threshold set
http://jsfiddle.net/gh/get/jquery/1.6/highslide-software/highcharts.com/tree/master/samples/stock/demo/area/

or

instead of threshold option in highcharts, is there way i can show red spots/points when
they fall out of min:max range?

Answer 1

A better way to approach this problem is to add two plot lines on the chart indicating
the minimum and maximum values allowed.

Let’s say you would like to apply this to the yAxis and set a minimum of 100 and a maximum of 500, you can like so:

var min = 100;
var max = 500;

yAxis: {

                min: min - 100,
                max: max + 100,
                plotLines: [{
                    id: 'limit-min',
                    color: '#FF0000',
                    dashStyle: 'ShortDash',
                    width: 2,
                    value: min,
                    zIndex: 0
                }, {
                    id: 'limit-max',
                    color: '#FF0000',
                    dashStyle: 'ShortDash',
                    width: 2,
                    value: max,
                    zIndex: 0
                }]
            }

The reason for adding and subtracting 100 to the max and min values is because we’d like the plot lines to be visible on the chart.

Hope that helps.