Plotly:具有多个轴的分组条形图

问题描述

当我在 Layout 中设置 barmode='group' 而 trace2 = Bar(...,yaxis='y2') 时，这会导致条形图被堆叠或覆盖，而不是对它们进行分组.如何在有多个轴的情况下对条形进行分组?

我浏览了这些但无济于事:

• When I set barmode='group' in Layout while trace2 = Bar(...,yaxis='y2'), this leads bars to be stacked or overlayed instead of grouping them. How can I group the bars while having multiple axes?

  I went over these but no avail:

  • With single Y axis grouped bar chart is shown here.
  • Multiple axes is also explained here and reference for y-axis is available here
  解决方案

  I hope the code below, based on zoo example, will be self-explanatory, however you have to set yaxis and offsetgroup parameters in go.Bar() object, and also yaxis2 parameter in layout parameter of go.Figure() object properly. The code is following:

  import plotly.graph_objects as go
  animals=['giraffes', 'orangutans', 'monkeys']
  
  fig = go.Figure(
      data=[
          go.Bar(name='SF Zoo', x=animals, y=[200, 140, 210], yaxis='y', offsetgroup=1),
          go.Bar(name='LA Zoo', x=animals, y=[12, 18, 29], yaxis='y2', offsetgroup=2)
      ],
      layout={
          'yaxis': {'title': 'SF Zoo axis'},
          'yaxis2': {'title': 'LA Zoo axis', 'overlaying': 'y', 'side': 'right'}
      }
  )
  
  # Change the bar mode
  fig.update_layout(barmode='group')
  fig.show()
  

  The result looks like this:

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