如何用 plotly 绘制一个 x 轴和两个 y 轴的直线曲线？

Question

我有一个包含两列日期和金额的数据框。我可以用 matplotlib 绘制那些，但无法用 plotly 绘制。下面是matplotlib例子

result.Amount[:362].plot(figsize=(15,8), title= 'Credit Amount by date', fontsize=14)
result.Amount[362:].plot(figsize=(15,8), title= 'Credit Amount by date', fontsize=14)
plt.show()

输出为：

但是当我尝试使用 plotly 进行相同操作时，它不起作用。我为 plotly 编写的代码是

fig = px.line(result, x='Date', y=[Amount[:362], Amount[362:]], template = 'plotly_dark')

fig.show()

它正在返回类似

的错误

NameError                                 Traceback (most recent call last)
<ipython-input-61-449ab60f9636> in <module>
      1 # line plot
      2 
----> 3 fig = px.line(result, x='Date', y=[Amount[:362], Amount[362:]], template = 'plotly_dark')
      4 
      5 # add a vertical rectange for test-set separation

NameError: name 'Amount' is not defined

https://drive.google.com/file/d/10TN_FSs27r5agLUv4aoopfaRpGsnIG5m/view?usp=sharing

以上为link数据

谁能帮我解决这个问题？

Answer 1

使用plotly.graph_objects，您可以在一个图形中绘制多个图形。

import plotly.graph_objects as go

fig = go.Figure()
fig.add_trace(go.Scatter(x=df['Date'][:362], y=df['Amount'][:362], mode='lines', name='A'))
fig.add_trace(go.Scatter(x=df['Date'][362:], y=df['Amount'][362:], mode='lines', name='B'))

fig.show()

如何用 plotly 绘制一个 x 轴和两个 y 轴的直线曲线？

How to plot line curve with one x axis and two y axis with plotly?

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