[英]Plotly express update of the pie chart
下面的代码生成一个以图片显示的饼图。 我需要在饼图中的价格后添加一个 $ 符号,有人可以帮我这样做吗? 我刚开始探索 plotly :) 提前谢谢!
pie = data[["room_type","price"]]
pie_chart = pie.groupby(['room_type'], as_index=False).median()
fig3 = px.pie(pie_chart,
values='price',
names='room_type',
color_discrete_sequence =['#de425b','#ef805b','#f7b672'])
fig3.update_traces(hoverinfo='label+percent', textinfo='value', textfont_size=17)
fig3.update_layout(
title_text = 'Median of prices per room type',
legend_title = 'Room type',
title_font = dict(family='Courier', size=16, color='black'),
title_x=0.5,
font_family="Courier",
font_color="black",
legend_title_font_color="black"
)
在fig.update_traces method
中,您可以传递textinfo='text'
而不是textinfo='labels'
,然后将 text 定义为 DataFrame 中的价格列表,并以美元符号作为每个价格的前缀。
import pandas as pd
import plotly.express as px
# pie = data[["room_type","price"]]
# pie_chart = pie.groupby(['room_type'], as_index=False).median()
## recreate DataFrame
pie_chart = pd.DataFrame({
'room_type':['Entire room/apt','Private room','Shared room'],
'price': ['68','35','16']
})
fig3 = px.pie(pie_chart,
values='price',
names='room_type',
color_discrete_sequence =['#de425b','#ef805b','#f7b672'])
## pass a list of values
fig3.update_traces(
hoverinfo='label+percent',
text=['$' + price for price in pie_chart.price.values],
textinfo='text',
textfont_size=17)
fig3.update_layout(
title_text = 'Median of prices per room type',
legend_title = 'Room type',
title_font = dict(family='Courier', size=16, color='black'),
title_x=0.5,
font_family="Courier",
font_color="black",
legend_title_font_color="black"
)
fig3.show()
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