Example for drawing a line chart in Python

draw-line-exp.py

import matplotlib.pyplot as plt
import numpy as np

xticks = ['15-1','15-2','15-3','15-4','16-1','16-2','16-3','16-4',
          '17-1','17-2','17-3','17-4','18-1','18-2','18-3','18-4','19-1','19-2','19-3']

size = np.array([573.5962982,663.0246013,949.9133204,1029.255457,1119.376834,1247.500742,1402.777201,1528.399689,
                    1694.4369,1915.263185,2212.279345,2985.357858,3109.525989,2787.855024,2710.313029,2778.113192,
                    2845.668532,3114.45823,3429.272631])

plt.subplots(figsize=(10, 6))
plt.plot(xticks, size, 'H--', label='size')

plt.xlabel('XXXXXX',fontsize = 'large')
plt.ylabel('YYYYYY', fontsize = 'large')
plt.tight_layout()

plt.savefig("test.png")