plotly violin plot 的离散颜色序列

Question

如何将颜色序列 color_discrete_sequence=["green", "blue", "yellow", "magenta"] 应用于下图中的“星期日”、“星期六”、“星期四”、“星期五”，即星期日应该是绿色，星期六应该是蓝色等？

import plotly.graph_objects as go
import pandas as pd

df = pd.read_csv("https://raw.githubusercontent.com/plotly/datasets/master/violin_data.csv")

fig = go.Figure()

fig.add_trace(go.Violin(x=df['day'], y=df['total_bill'],                        
                        line_color='rgba(255,0,0,0.5)'
                       )
             )


fig.update_traces(box_visible=False, meanline_visible=True,
                  points='all', pointpos=-0, jitter=0.5,
                  marker_line_color='rgba(0,0,0,0.5)',
                  marker_line_width=1,
                  
                  showlegend=False)

fig.update_layout(template='simple_white')

fig.show()

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Answer 1

Plotly express 似乎是正确的方式；貌似我画的不对。

import plotly.express as px
import pandas as pd

df = px.data.tips()

fig = px.violin(df, x='day', y="total_bill", color='day',
                color_discrete_sequence=["green", "blue", "yellow", "magenta"])

fig.update_traces(box_visible=False, meanline_visible=True,
                  points='all', pointpos=-0, jitter=0.5,
                  marker_line_color='rgba(0,0,0,0.5)',
                  marker_line_width=1,                  
                  showlegend=False)

fig.update_layout(template='simple_white')

fig.show()

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plotly violin plot 的离散颜色序列

Discrete color sequence for plotly violin plot

colors

sequence

plotly

violin-plot