我想实现一个有连续值的决策树ID3算法,第一次输出的最优特征值没有问题,迭代的话就会报错,求帮忙 # Only include the first 8 descriptivefirst column is 'index',so the attribute features start at 1 for vi in values:
#add subtr
n File \"/var/lang/python3/lib/python3.6/site-packages/urllib3/connectionpool.py\", line 343, in _make_request_validate_conn(conn)\n File \"/var/lang/python3/lib/<e
在腾讯云服务器利用python连接gmail发送邮件,为什么一直显示如下错误,之前还能发送的,本地也可以发。home/software/anaconda3/lib/python3.7/smtplib.py", line 336, in connect File "/home/software/anaconda3</