Pandas bar plot — specify bar color by column

Question

Is there a simply way to specify bar colors by column name using Pandas DataFrame.plot(kind=\'bar\') method?

I have a script that generates multiple Dat

Answer 1

Pandas version 1.1.0 makes this easier. You can pass a dictionary to specify different color for each column in the pandas.DataFrame.plot.bar() function:

Here is an example:

df1 = pd.DataFrame({'a': [1.2, .8, .9], 'b': [.2, .9, .7]})
df2 = pd.DataFrame({'b': [0.2, .5, .4], 'c': [.5, .6, .7], 'd': [1.1, .6, .7]})
color_dict = {'a':'green', 'b': 'red', 'c':'blue', 'd': 'cyan'}
df1.plot.bar(color = color_dict)
df2.plot.bar(color = color_dict)