如何在Python中使用group by绘制带有2列的条形图

Question

I got the data like this

  color type  price     Y/N
1   R   A       H       Y
2   G   B       L       N
3   B   A       H       N
4   R   C       L       N
5   G   B       H       Y
6   R   A       H       Y
7   B   B       H       Y

I want to drow barchar with each column and group by Y/N column

something like this enter image description here

Sorry for the picture, hope you can understand it :) Is this any easy way to draw the picture like this without to count number of each different type. BTW, how to draw when it's not binary category, such as Y/N column has 4 different values.

Answer 1

You could try something like this:

for i in df.columns[:-1]:
    df.groupby([i,'Y/N'])[i].size().unstack().plot.bar()

Output: