Plotly.js

Plotly.js 是一个图表库,带有 40 多种图表类型、3D 图表、统计图和 SVG 地图。

散点图

源代码

var xArray = [50,60,70,80,90,100,110,120,130,140,150];
var yArray = [7,8,8,9,9,9,10,11,14,14,15];
// 定义数据
var data = [{
 x: xArray,
 y: yArray,
 mode:"markers",
 type:"scatter"
}];
// 定义布局
var layout = {
 xaxis: {range: [40, 160], title: "平方米"},
 yaxis: {range: [5, 16], title: "价格(百万元)"},
 title: "房价 vs. 面积"
};
Plotly.newPlot("myPlot", data, layout);

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折线图

源代码

var xArray = [50,60,70,80,90,100,110,120,130,140,150];
var yArray = [7,8,8,9,9,9,10,11,14,14,15];
// 定义数据
var data = [{
 x: xArray,
 y: yArray,
 mode: "lines",
 type: "scatter"
}];
// 定义布局
var layout = {
 xaxis: {range: [40, 160], title: "平方米"},
 yaxis: {range: [5, 16], title: "价格(百万元)"},
 title: "房价 vs. 面积"
};
// 使用 Plotly 来显示
Plotly.newPlot("myPlot", data, layout);

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线性图

源代码

var exp = "x + 17";
// 生成值
var xValues = [];
var yValues = [];
for (var x = 0; x <= 10; x += 1) {
 yValues.push(eval(exp));
 xValues.push(x);
}
// 定义数据
var data = [{
 x: xValues,
 y: yValues,
 mode: "lines"
}];
// 定义布局
var layout = {title: "y = " + exp};
// 使用 Plotly 来显示
Plotly.newPlot("myPlot", data, layout);

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多行

源代码

var exp1 = "x";
var exp2 = "1.5*x";
var exp3 = "1.5*x + 7";
// 生成值
var x1Values = [];
var x2Values = [];
var x3Values = [];
var y1Values = [];
var y2Values = [];
var y3Values = [];
for (var x = 0; x <= 10; x += 1) {
 x1Values.push(x);
 x2Values.push(x);
 x3Values.push(x);
 y1Values.push(eval(exp1));
 y2Values.push(eval(exp2));
 y3Values.push(eval(exp3));
}
// 定义数据
var data = [
 {x: x1Values, y: y1Values, mode:"lines"},
 {x: x2Values, y: y2Values, mode:"lines"},
 {x: x3Values, y: y3Values, mode:"lines"}
];
// 定义布局
var layout = {title: "[y=" + exp1 + "] [y=" + exp2 + "] [y=" + exp3 + "]"};
// 使用 Plotly 来显示
Plotly.newPlot("myPlot", data, layout);

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条形图

源代码

var xArray = ["意大利","法国","西班牙","美国","阿根廷"];
var yArray = [55, 49, 44, 24, 15];
var data = [{
 x: xArray,
 y: yArray,
 type: "bar" }];
var layout = {title:"全球葡萄酒生产"};
Plotly.newPlot("myPlot", data, layout);

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水平条形图

源代码

var xArray = [55, 49, 44, 24, 15];
var yArray = ["意大利","法国","西班牙","美国","阿根廷"];
var data = [{
 x: xArray,
 y: yArray,
 type: "bar",
 orientation: "h"
}];
var layout = {title:"全球葡萄酒生产"};
Plotly.newPlot("myPlot", data, layout);

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饼图

如需显示饼图而不是条形图,请将 x 和 y 更改为 labels 和 values ,并将 type 更改为 "pie":

var data = [{
 labels: xArray,
 values: yArray,
 type: "pie"
}];

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甜甜圈图

如需显示甜甜圈而不是饼图,请添加一个 hole:

var data = [{
 labels: xArray,
 values: yArray,
 hole: .4,
 type: "pie"
}];

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绘制方程

源代码

var exp = "Math.sin(x)";
// 生成值
var xValues = [];
var yValues = [];
for (var x = 0; x <= 10; x += 0.1) {
 yValues.push(eval(exp));
 xValues.push(x);
}
// 使用 Plotly 来显示
var data = [{x:xValues, y:yValues, mode:"lines"}];
var layout = {title: "y = " + exp};
Plotly.newPlot("myPlot", data, layout);

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