I have a Pandas DataFrame. I want to plot two columns' values with bar plot, and the bar plot sorts values by the other column.
For example, I want to sort values in descending order by column a_b
(sum of column a
and b
).
In addition, the xlabel is rotated, I want to fix it.
Your help would be appreciated.
import pandas as pd
%matplotlib inline
a = pd.Series([4,8,6,7,8,3,9,7])
b = pd.Series([3,6,8,3,4,6,10,4])
a_b = a+b
df = pd.concat([a,b,a_b],axis=1,join='inner')
df.columns = ['a','b','c']
df[['a','b']].sort_values(by='a',ascending=False).plot(kind='bar',stacked=True)
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…