根据log文件画loss曲线实例_log文件画loss图

import matplotlib.pyplot as plt
tr_loss = []
tr_step = []

with open("/home/zz/123/transformer.log") as f:
	for line in f:
		line = line.strip()
		line = line.split(',')
		if len(line)>=4:
			step = float(line[2][13:])
			loss = float(line[4][6:])
			tr_loss.append(loss)
			tr_step.append(step)
        
     
plt.figure(figsize=(8,6))
plt.plot(tr_step,tr_loss,'',label="loss")
plt.title('loss')
plt.legend(loc='upper right')
plt.xlabel('iter')
plt.ylabel('')
plt.grid()
plt.savefig('torch_testblueline.jpg')
plt.show()
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