摘要: ``` import numpy as np from collections import Counter data = np.array([1.1,2,3,4,4,5]) Counter(data) # {label:sum(label)} #简单方法 sum(data==4) ``` 阅读全文
posted @ 2019-07-09 15:37 默写年华 阅读(28616) 评论(0) 推荐(0) 编辑