python - 如何在条形图中同时设置宽度和间隙？ ( python ，剧情)

Question

我知道如何设置条形图中条形的宽度:

fig = go.Figure(data=[go.Bar(x = ['A', 'B', 'C'], y = [2, 4, 1], width=[0.5]*3)])
fig.update_layout(paper_bgcolor = 'rgba(0,0,0,0)',plot_bgcolor = 'rgba(0,0,0,0)')
fig.update_layout(bargap=0)
fig.show()

如您所见，bargap 被忽略了。因为条的宽度已经设置好了。现在，通过删除 width 属性，我们将得到以下内容:

我希望通过消除差距，同时拥有更细的条形图。现在，问题是:

"How to set width and gap simultaneously in a bar chart through plotly in python?"

Answer 1

有一个解决方法。在 https://plotly.com/python/bar-charts/ 查看 marimekko 示例

import plotly.graph_objects as go
import numpy as np

labels = ['A', 'B', 'C']
widths = np.array([0.5]*3)
widths[1] = 0.5*4

fig = go.Figure(data=[go.Bar(x=np.cumsum(widths)-widths, width=widths, offset=0, y = [2, 4, 1])])
fig.update_layout(paper_bgcolor = 'rgba(0,0,0,0)',plot_bgcolor = 'rgba(0,0,0,0)')
fig.update_xaxes( 
    showline = True, linecolor = '#000',
    tickvals=np.cumsum(widths)-widths/2, 
    ticktext= ["%s" % (l) for l, w in zip(labels, widths)]
)
fig.update_yaxes( 
    showline = True, linecolor = '#000')
fig.update_layout()
fig.show()

Output