import pandas as pd
import numpy as np
from collections import Counter
name_list = ["小明","小红","张三","李四","关宇"]
# 从上面的name_list中随机抽取1000个名字,有放回的抽取,所以结果中会有重复
data = list(np.random.choice(name_list,1000,replace=True)) # 生成列表形式
data[:20]
需求:现在我们的需求就是统计上面的列表中每个名字出现了多少次
dic = {}
for key in data:
dic[key] = dic.get(key,0) + 1
dic
from collections import Counter
result = Counter(data)
result
看下官网demo和统计出现最多的两个名字:
这个方法太?了