Question

I’ve this graph.

I only what to display integer steps on the y axis.
So instead of [0, 0.5, 1, 1.5, 2, 2.5] I want [0,1,2].

Is that possible? I’m not sure what to look for in the official API.

Answer 1

The answer you’re looking for is the allowDecimals Boolean:

yAxis: {
    allowDecimals : false,
    /* completely irrelevant stuff follows... */
    title: {
        text: 'It\'s the y-axis'
    },
    plotLines: [{
        value: 0,
        width: 1,
        color: '#808080'
    }]
},

With allowDecimals: false.

yAxis: {
    allowDecimals : true, // though it defaults to 'true' anyway...
    /* other stuff... */
},

And the same graph with allowDecimals: true.

References:

• Highcharts API reference for allowDecimals.