I need to change the order of combined bars on a plot - first 'group_b', last 'group_a'. It seems like very simple ... but I have no good idea.
I can change columns name, after that to change a legend and get what I need - but I think it is a wrong way.
I have checked similar questions and didn't find an answer(((
Is there any simple and clear way to do it?
pandas
will plot the bars according to the order of the columns in the dataframe. So we just need to reorder the columns to get the plot you want.
Consider the following:
import pandas as pd
import matplotlib.pyplot as plt
df = pd.DataFrame({'group_a': [1, 2, 3, 4, 5], 'group_b': [6, 5, 4, 3, 2]})
df.plot(kind='bar')
plt.show()
my_order = ['group_b', 'group_a']
df[my_order].plot(kind='bar')
plt.show()