如何设置Y轴的最大值和最小值

我写了一个js在y轴上显示从0到100的值，间隔为20。

这是我的script。js

//x-axis var vehicles = ["Trucks", "Cars", "Bikes", "Jeeps"]; //The percentage of vehicles of each type var percentage = [41, 76, 29, 50]; var ctx = document.getElementById("barChart"); var lineChart = new Chart(ctx, { type: 'bar', data: { labels: vehicles, datasets: [{ data: percentage, label: "Percentage of vehicles", backgroundColor: "#3e95cd", fill: false }] }, options: { scales: { yAxes: [{ ticks: { beginAtZero: true, min: 0, max: 100, stepSize: 20, } }] } } });

这是显示在网页上的图表。

2019-02-21 05:39:52

从最新版本v3.9.1开始，你可以像这样设置你的比例:

options:{
    scales:{
        y:{
            beginAtZero: true,
            max: 500 // values over 500 will be hidden, OR
            suggestedMax: 500, // maximum will be 500, unless there is a higher value
        }
    }
}

2022-09-13 11:37:09

>最佳解决方案

  "options":{
                    scales: {
                                yAxes: [{
                                    display: true,
                                    ticks: {
                                        suggestedMin: 0, //min
                                        suggestedMax: 100 //max 
                                    }
                                }]
                            }
                    }

2019-12-11 19:12:50

你必须覆盖比例，试试这个:(适用于ChartJS v1.x)

window.onload = function(){
    var ctx = document.getElementById("canvas").getContext("2d");
    window.myLine = new Chart(ctx).Line(lineChartData, {
        scaleOverride : true,
        scaleSteps : 10,
        scaleStepWidth : 50,
        scaleStartValue : 0 
    });
}

2015-03-11 15:51:46

v3。X (v3.5.0)

线性笛卡尔轴

let options = {
  scales: {
    y: {
      beginAtZero: true,
      suggestedMax: 69
    },
    x: {
      beginAtZero: true,
      suggestedMax: 420
    },
    ticks: {
      stepSize: 1
    }
  }
}

引用https://www.chartjs.org/docs/3.5.0/axes/cartesian/linear.html

线性径向轴


let options = {
  scales: {
    r: {
      beginAtZero: true,
      suggestedMax: 5,
      ticks: {
        stepSize: 1
      }
    }
  }
}

引用https://www.chartjs.org/docs/3.5.0/axes/radial/linear.html

v2。X (v2.9.4)

线性笛卡尔轴

let options = {
    scale: {
      ticks: {
        beginAtZero: true,
        stepSize: 1,
        suggestedMax: 5,
      }
    }
}

引用https://www.chartjs.org/docs/2.9.4/axes/cartesian/linear.html

线性径向轴

let options = {
  scale: {
    ticks: {
      beginAtZero: true,
      stepSize: 1,
      suggestedMax: 5,
    }
  }
}

引用https://www.chartjs.org/docs/2.9.4/axes/radial/linear.html

注:v2为单数，v3为复数

2021-08-07 12:55:59