Set min, max and number of steps in radar chart.js

Starting ChartJS 3 the min/max scale values are not specified in scale.ticks but in options.scale or options.scales[id] object, example :

new Chart(hostElement, {
    type: "radar",
    data,
    options: {
        scale: {
            min: 0,
            max: 100,
        },
    },
});

https://www.chartjs.org/docs/latest/axes/radial/linear.html#linear-radial-axis :

scales.[x/y]Axes.ticks.max was renamed to scales[id].max
scales.[x/y]Axes.ticks.min was renamed to scales[id].min

https://codepen.io/JCH77/pen/abNymae

Set the value of stepSize

scale: {
    ticks: {
        beginAtZero: true,
        max: 5,
        min: 0,
        stepSize: 1
    }
}

You are right, but only if you are using Chart.js v1.x.

Ticks options have changed in v2.x (the one you are using).

---

If you want to edit radar ticks, you will need to edit the ticks attribute in your chart options :

var options = {
    scale: {
        ticks: {
            // changes here
        }
    }
};

From what you need (mak a scale from 0 to 5), you can either :

• set the attribute beginAtZero to true and max to 5
• set the attribute min to 0 and max to 5

You can see here the result.