js

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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