当我将鼠标悬停在热图中的绘图上时,它会将轴显示为 x、y、z。
但我希望它分别像年、月、乘客数
这是我的代码:
import pandas as pd
import plotly.offline as pyo
import plotly.graph_objs as go
flights_data_csv = pd.read_csv("flights.csv")
data = [go.Heatmap(x=flights_data_csv["year"],
y=flights_data_csv["month"],
z=flights_data_csv["passengers"].values.tolist(),
colorbar=dict(title="Passengers traveled <br>by Flights"),
colorscale="jet",
zmin=100,
zmax=650)]
layout = go.Layout(title="Exercise of HeatMaps <br>For Showing Flights details",
title_x=0.5)
fig = go.Figure(data, layout)
pyo.plot(fig, filename="Flights Heatmaps.html")
答案 0 :(得分:1)
添加一个 hovertemplate 并指定格式:
Year:%{x}<br>Month:%{y}<br>Passengers:%{z}
变量分别由%{x}
、%{y}
和%{z}
引用,否则可以使用html格式化显示。
data = [
go.Heatmap(x=flights_data_csv["year"],
y=flights_data_csv["month"],
z=flights_data_csv["passengers"],
colorbar=dict(title="Passengers traveled <br>by Flights"),
colorscale="jet",
zmin=100,
zmax=650,
hovertemplate='Year:%{x}<br>Month:%{y}<br>Passengers:%{z}',
name='')
]
name
设置为空字符串(name=''
),否则 trace 0
将作为标签出现: