matplotlib绘制带比例（percentile）的堆叠（stacked）条形图(bar plot)

Posted 2021-05-18 Data+Science+Insight

matplotlib绘制带比例（percentile）的堆叠（stacked）条形图(bar plot)

 

导入包：

%matplotlib inline
import pandas as pd
import matplotlib.pyplot as plt

构建数据：

raw_data = {\'first_name\': [\'Jason\', \'Molly\', \'Tina\', \'Jake\', \'Amy\'],
        \'pre_score\': [4, 24, 31, 2, 3],
        \'mid_score\': [25, 94, 57, 62, 70],
        \'post_score\': [5, 43, 23, 23, 51]}
df = pd.DataFrame(raw_data, columns = [\'first_name\', \'pre_score\', \'mid_score\', \'post_score\'])
df

 作图：

# Create a figure with a single subplot
f, ax = plt.subplots(1, figsize=(10,5))

# Set bar width at 1
bar_width = 1

# positions of the left bar-