分位数的理解

分位数的理解

分位数常见的有百分位数和四分位数，分位数可以以概率的方式将一批数据进行分割。具体可参考以下链接：

• https://www.zhihu.com/question/67763556
• https://blog.csdn.net/zhouqj1913/article/details/88676264
• https://blog.csdn.net/LAW_harder/article/details/78885729
• https://www.cnblogs.com/zhaohuanhuan/p/9055944.html
• https://mp.weixin.qq.com/s?__biz=MzU5MDQ3NTQxMw==&mid=2247484094&idx=1&sn=85618b06d7f94b2481cfd5b4fada076f&chksm=fe3cfb44c94b7252d62d865f0f974b6b7774119e1dc2fb1d9dc2ad8bc44302172b2332371438#rd

python中pandas库对分数数的计算：https://www.cnblogs.com/zhaohuanhuan/p/9055944.html

data = pd.read_table('/Users/bai sheng/Desktop/222', usecols=[0,1,2])
data.describe([.1, .2])
output:
              a         b         c
count  2.000000  2.000000  2.000000
mean   2.500000  2.500000  2.500000
std    0.707107  0.707107  0.707107
min    2.000000  2.000000  2.000000
10%    2.100000  2.100000  2.100000
20%    2.200000  2.200000  2.200000
50%    2.500000  2.500000  2.500000
max    3.000000  3.000000  3.000000

百分位数的计算方法