如何使用plotly express向折线图添加点或标记? [英] How to add points or markers to line chart using plotly express?

问题描述

plotly.express 非常方便地生成漂亮的交互式绘图.下面的代码生成一个按国家/地区着色的折线图.现在我需要的是在图中添加点.有谁知道如何在折线图中添加点?

plotly.express is very convenient to produce nice interactive plots. The code below generates a line chart colored by country. Now what I need is to add points to the plot. Does anyone know how I can add points to the line chart?

import plotly.express as px

gapminder = px.data.gapminder().query("continent=='Oceania'")
fig = px.line(gapminder, x="year", y="lifeExp", color='country')
fig.show()

推荐答案

使用 fig.update_traces(mode='markers+lines')

剧情:

代码:

import plotly.express as px

gapminder = px.data.gapminder().query("continent=='Oceania'")
fig = px.line(gapminder, x="year", y="lifeExp", color='country')

fig.update_traces(mode='markers+lines')
fig.show()

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