问题描述
我有两个样本如下所示的数据集:
| Week | System | Total |
|------------|--------|-------|
| 2019-10-14 | a | 600 |
| 2019-10-14 | b | 130 |
| 2019-10-21 | a | 820 |
| 2019-10-21 | b | 205 |
| 2019-10-28 | a | 850 |
| 2019-10-28 | b | 230 |
和
| Week | a | b |
|------------|------|-------|
| 2019-10-14 | NaN | NaN |
| 2019-10-21 | 39.5 | 61.48 |
| 2019-10-28 | 6.19 | -1.45 |
a和b值的格式以百分比表示。输入提供为:
df=[['2019-10-14','a',600],['2019-10-14','b',130],['2019-10-21',820],205],['2019-10-28',850],230]]
df= pd.DataFrame(df,columns=['Week','System','Total'])
df['Week'] = pd.to_datetime(df['Week'],format='%Y-%m-%d')
和
df1=[['2019-10-14',np.nan,np.nan],39.5,61.48],6.19,-1.45]]
df1= pd.DataFrame(df1,'b'])
df1['Week'] = pd.to_datetime(df1['Week'],format='%Y-%m-%d')
我想在同一图中以图形方式绘制数据框df的分组条形图和数据框df1的多折线图,以使df1的y轴充当辅助轴。
此链接倾向于解决类似的问题,但是在使用相同的概念-How to overlay two plots in same figure in plotly?
时出现错误下面是我尝试过的代码片段,但在此过程中我遇到了错误。我猜错误是在fin.add_trace(trace1)
cmap_2 = {
'a': '#C64E34','b': '#EA85ED',}
trace1 = px.bar(df,x="Week",y="Total",color="System",barmode="group",color_discrete_map=cmap_2)
trace2 = go.figure()
trace2.add_trace(go.Scatter(x=df1['Week'],y=df1['a'],name='A',line=dict(color='red',width=4)))
trace2.add_trace(go.Scatter(x=df1['Week'],y=df1['b'],name='B',line=dict(color='purple',width=4,dash='dash')
))
trace2.update_xaxes(
tickvals=["2019-10-14","2019-10-21","2019-10-28"]
)
fin = make_subplots(specs=[[{"secondary_y": True}]])
fin.add_trace(trace1)
fin.add_trace(trace2,secondary_y=True)
fin['layout'].update(height = 600,width = 800,title = title,xaxis=dict(tickangle=-90))
iplot(fin)
最终输出应类似于下面提供的示例图:
解决方法
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