我的数据框看起来与此类似:
>>>Hour Level value
0 7 H 1.435
1 7 M 3.124
2 7 L 5.578
3 8 H 0.435
4 8 M 2.124
5 8 L 4.578
我想在绘图中创建折线图,该折线图将根据“级别”列具有不同的线条样式。
现在我有默认线条样式的折线图:
import plotly.graph_objects as go
fig = px.line(group, x="Hour", y="value",color='level', title='Graph',category_orders={'level':['H','M','L']}
,color_discrete_map={'H':'royalblue','M':'orange','L':'firebrick'})
fig.show()
我想控制每个级别的线条样式。 直到知道我看到做到这一点的唯一方法是为每个“级别”添加,但使用 add_trace 如下:
# Create and style traces
fig.add_trace(go.Scatter(x="Hour", y="value", name='H',
line=dict(dash='dash')))
fig.add_trace(go.Scatter(x="Hour", y="value", name = 'M',
line=dict(dash='dot')))
fig.show()
但我不断收到此错误:
值错误: 分散的“x”属性收到的“builtins.str”类型的值无效 收到的值:“小时”
The 'x' property is an array that may be specified as a tuple, list, numpy array, or pandas Series
我的最终目标是控制图表中线条的线条样式,如果我可以在“px.line”部分内做到这一点就更好了
通过数据框中的变量设置不同样式的一种方法是:
line_dash='Level'
import plotly.graph_objects as go
import pandas as pd
import numpy as np
import plotly.io as pio
import plotly.express as px
group = pd.DataFrame({'Hour': {0: 7, 1: 7, 2: 7, 3: 8, 4: 8, 5: 8},
'Level': {0: 'H', 1: 'M', 2: 'L', 3: 'H', 4: 'M', 5: 'L'},
'value': {0: 1.435,
1: 3.1239999999999997,
2: 5.577999999999999,
3: 0.435,
4: 2.124,
5: 4.578}})
import plotly.graph_objects as go
fig = px.line(
group,
x="Hour",
y="value",
color='Level',
title='Graph',
category_orders={'Level':['H','M','L']},
color_discrete_map={'H':'royalblue','M':'orange','L':'firebrick'},
line_dash='Level'
)
fig.show()