如何在情节线图中有选择地隐藏图例？

Posted 2023-02-18

【中文标题】如何在情节线图中有选择地隐藏图例？

【英文标题】：How to hide legend selectively in a plotly line plot?

【发布时间】：2021-11-25 05:54:03

【问题描述】：

我正在努力隐藏线图中某些但不是所有线的图例。这是情节现在的样子。

Plot:

基本上我想隐藏浅灰色线条的图例，同时将彩色线条保留在原位。

这是我的代码：

import plotly.graph_objects as go

fig = go.Figure()
fig.update_layout(autosize=False, width=800, height=500, template='none')
fig.update_layout(title = 'Title', xaxis_title = 'Games', yaxis_title = 'Profit')

for team in rest_teams:
    fig.add_traces(go.Scatter(x=df['x'], y = df[team], name = team, line = 'color': '#F5F5F5'))

for team in big_eight:
    line_dict = 'color': cmap[team]
    fig.add_traces(go.Scatter(x=df['x'], y = df[team], name = team, line = line_dict))

fig.show()

我可以更新布局

fig.update_layout(showlegend=False)

它隐藏了整个事情并且不是最佳的。帮助将不胜感激。

【参考方案1】：

如果我正确理解了您想要的输出，您可以将showlegend = False 用于您使用color = #F5F5F5 设置为灰色的轨迹：

for c in cols1:
    fig.add_trace(go.Scatter(x = df.index, y = df[c], line_color = '#F5F5F5',
                  showlegend = False))

然后将其留给您想要分配颜色的行，并确保将name = c 包含在：

for c in cols2:
    fig.add_trace(go.Scatter(x = df.index, y = df[c], 
                  name = c))

剧情：

完整代码：

import plotly.graph_objects as go
import plotly.express as px
import pandas as pd


df = px.data.stocks()
df = df.set_index('date')

fig = go.Figure()

cols1 = df.columns[:2]
cols2 = df.columns[2:]

for c in cols1:
    fig.add_trace(go.Scatter(x = df.index, y = df[c], line_color = '#F5F5F5',
                  showlegend = False))

for c in cols2:
    fig.add_trace(go.Scatter(x = df.index, y = df[c], 
                  name = c))
fig.update_layout(template=template
fig.show()