我正在Python中使用Plotly包,并使用来自该包的示例数据集获得以下结果:
import plotly.express as px
df = px.data.tips()
fig = px.bar(df, x="sex", y="total_bill", color='day', barmode='group',height=400)
fig.show()
但是,您可以看到日期的顺序是星期日,星期六,星期四和星期五,而我希望它是星期四,星期五,星期六和星期日。我一直在浏览文档,但无济于事,因为看来我只能更改组本身的顺序,而不能更改组内的变量。我还会附上一小部分数据样本,以防万一:
print(df)
total_bill tip sex smoker day time size
0 16.99 1.01 Female No Sun Dinner 2
1 10.34 1.66 Male No Sun Dinner 3
2 21.01 3.50 Male No Sun Dinner 3
3 23.68 3.31 Male No Sun Dinner 2
4 24.59 3.61 Female No Sun Dinner 4
.. ... ... ... ... ... ... ...
239 29.03 5.92 Male No Sat Dinner 3
240 27.18 2.00 Female Yes Sat Dinner 2
241 22.67 2.00 Male Yes Sat Dinner 2
242 17.82 1.75 Male No Sat Dinner 2
243 18.78 3.00 Female No Thur Dinner 2
我最终解决了这个问题,但是如果有人想知道如何解决,我会发布我的解决方案。基本上,在创建条形图之前进行排序:
import numpy as np
conditions = [(df['day'] == 'Thur'), (df['day'] == 'Fri'),
(df['day'] == 'Sat'), (df['day'] == 'Sun')]
choices = [0,1,2,3]
df['order'] = np.select(conditions, choices)
df = df.sort_values(by='order')
fig = px.bar(df, x="sex", y="total_bill", color='day', barmode='group',height=400)
fig.show()
根据需要。