绘图-从第一个数据点开始X轴 [英] Plotly - starting X axis from first data point
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问题描述
在此完整示例,
第一个日期是一月一日,
The first date is on the first of January,
var trace1 = {
x: ['2000-01-01',
但是,图形上显示的第一个标签是1月2日.
However, the first label shown on the graph is Jan 2.
有没有一种方法可以强制图表从1月1日开始?
Is there a way to force the graph to start from the 1st of January?
推荐答案
您可以指定x轴的第一个刻度值.
You have several possibilities to specify the first tick value of your x-axis.
与dticks
var layout = {
xaxis: {
tick0: '2000-01-01',
dtick: 7*24*60*60*1000 // 7 days
};
或完全自行设置 tickvals
or completely set the tickvals
yourself
var layout = {
xaxis: {
tickvals: ['2000-01-01', '2000-01-15', '2000-01-31']
};
var trace1 = {
x: ['2000-01-01', '2000-01-02', '2000-01-03', '2000-01-04', '2000-01-05', '2000-01-06', '2000-01-07', '2000-01-08', '2000-01-09', '2000-01-10', '2000-01-11', '2000-01-12', '2000-01-13', '2000-01-14', '2000-01-15', '2000-01-16', '2000-01-17', '2000-01-18', '2000-01-19', '2000-01-20', '2000-01-21', '2000-01-22', '2000-01-23', '2000-01-24', '2000-01-25', '2000-01-26', '2000-01-27', '2000-01-28', '2000-01-29', '2000-01-30', '2000-01-31'],
y: [4.3, 8.2, 4.1, 5.6, -3, -0.2, 0.3, 0.4, 4.1, 5, 4.6, -0.2, -8.5, -9.1, -2.7, -2.7, -17, -11.3, -5.5, -6.5, -16.9, -12, -6.1, -6.6, -7.9, -10.8, -14.8, -11, -4.4, -1.3, -1.1],
mode: 'lines',
type: 'scatter',
name: '2000'
};
var data = [trace1];
var layout = {
xaxis: {
type: 'date',
title: 'January Weather',
tick0: '2000-01-01',
dtick: 7 * 24 * 60 * 60 * 1000
},
yaxis: {
title: 'Daily Mean Temperature'
},
title:'2000 Toronto January Weather'
};
Plotly.plot('myDiv', data, layout);
<script src="https://cdn.plot.ly/plotly-latest.min.js"></script>
<div id="myDiv" style="width:100%;height:400px;"></div>
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