如何为我的数据集创建箱线图？ （需要数据转换）

Question

I have the following pandas DataFrame:

              Measure
Code             
1200          55.122
1002          49.166
1002          49.263
1002          59.156
1200          49.353
1200          43.000

I want to create a box plot, so that X axis contains Code values and Y axis contains Measurement values as boxes (25th percentile, median, 75th percentile).

How can I do it?

This is what I tried, but it creates only 1 box in a plot instead of 2 boxes (for Code values 1002 and 1200 ):

fig, ax = plt.subplots(figsize=(10,5))
ds.boxplot(vert=False)
plt.subplots_adjust(left=0.25)
plt.show()

Answer 1

Use DataFrame.reset_index for column from index and add parameter by to DataFrame.boxplot :

fig, ax = plt.subplots(figsize=(10,5))
ds.boxplot(vert=False,column='Measure', by='Code', ax=ax)
plt.subplots_adjust(left=0.25)