【问题标题】:Plotly: How to add data labels to stacked bar charts using go.Bar?Plotly:如何使用 go.Bar 向堆积条形图添加数据标签?
【发布时间】:2021-06-04 08:56:21
【问题描述】:

我有一个堆叠的分组条形图,我想获取图表上每个条形的每个部分的数据标签。

我的图表如下:

stackData = {
    "Leaders Now":[.52, .57, .38, .48],
    "Bottom Now": [.20,  .27, .19, .18],
    # Use differece
    "Leaders Plan": [.17, .06, .12,  .16],
    "Bottom Plan":[.15,.12,.09,.12],
    "labels": [
        "Revenue",
        "Cost",
        "Quality",
        "Flexibility"
    ]
}

fig3 = go.Figure(
    data=[
        go.Bar(
            name="Leaders Now",
            x=stackData["labels"],
            y=stackData["Leaders Now"],
            offsetgroup=0,
            marker_color = '#024a70'
        ),
        go.Bar(
            name="Leaders Plan",
            x=stackData["labels"],
            y=stackData["Leaders Plan"],
            offsetgroup=0,
            base=stackData["Leaders Now"],
            marker_color = '#051c2c'
        ),
        go.Bar(
            name="Bottom Now",
            x=stackData["labels"],
            y=stackData["Bottom Now"],
            offsetgroup=1,
            marker_color = '#abe5f0'
        ),
        go.Bar(
            name="Bottom Plan",
            x=stackData["labels"],
            y=stackData["Bottom Plan"],
            offsetgroup=1,
            base=stackData["Bottom Now"],
            marker_color = '#74d0f0'
        )
    ],
    layout=go.Layout(
        title="Use Cases",
        yaxis_title="% of Companies"
    )
)
fig3.show()

我只想要条形图上每个项目的 % 值作为数据标签。使用 plotly express 很容易,但不确定为什么它不能与诸如

之类的东西一起使用
fig3.update_traces(texttemplate='%{text:.0%}',textposition='auto')

谢谢!

【问题讨论】:

  • 感谢您接受我的回答。如果您觉得它有用,也请考虑点赞。
  • 我想知道是否有可能获得覆盖格式的栏?就像第一个柱是 52%,它上面的那个会被覆盖,所以它的值是 69%(而不是 17%)。如有必要,我可以发布一个单独的问题。谢谢
  • 这也许是可能的。但是,是的,请将其作为一个单独的问题发布。

标签: python graph plotly


【解决方案1】:

您只需为每个go.Bar 指定text 属性,例如:

go.Bar(
    name="Leaders Now",
    x=stackData["labels"],
    y=stackData["Leaders Now"],
    offsetgroup=0,
    marker_color = '#024a70',
    text = stackData["Leaders Now"]
)

剧情:

完整代码:

import plotly.graph_objects as go
import pandas as pd

stackData = {
    "Leaders Now":[.52, .57, .38, .48],
    "Bottom Now": [.20,  .27, .19, .18],
    # Use differece
    "Leaders Plan": [.17, .06, .12,  .16],
    "Bottom Plan":[.15,.12,.09,.12],
    "labels": [
        "Revenue",
        "Cost",
        "Quality",
        "Flexibility"
    ]
}

# stackData = pd.DataFrame(stackData)

fig3 = go.Figure(
    data=[
        go.Bar(
            name="Leaders Now",
            x=stackData["labels"],
            y=stackData["Leaders Now"],
            offsetgroup=0,
            marker_color = '#024a70',
            text = stackData["Leaders Now"]
        ),
        go.Bar(
            name="Leaders Plan",
            x=stackData["labels"],
            y=stackData["Leaders Plan"],
            offsetgroup=0,
            base=stackData["Leaders Now"],
            marker_color = '#051c2c',
            text= stackData["Leaders Plan"]
        ),
        go.Bar(
            name="Bottom Now",
            x=stackData["labels"],
            y=stackData["Bottom Now"],
            offsetgroup=1,
            marker_color = '#abe5f0',
            text = stackData["Bottom Now"]
        ),
        go.Bar(
            name="Bottom Plan",
            x=stackData["labels"],
            y=stackData["Bottom Plan"],
            offsetgroup=1,
            base=stackData["Bottom Now"],
            marker_color = '#74d0f0',
            text = stackData["Bottom Plan"]
        )
    ],
    layout=go.Layout(
        title="Use Cases",
        yaxis_title="% of Companies"
    )
)

f3 = fig3.full_figure_for_development(warn=False)
fig3.update_traces(texttemplate='%{text:.2%}', textposition='inside')

fig3.show()

【讨论】:

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