python缺失数据填充 Python基于滑动平均思想实现缺失数据填充的方法

#!usr/bin/env python
#encoding:utf-8
from __future__ import division
'''
__Author__:沂水寒城
功能： python 基于滑动平均思想实现简易的缺失数据填充
'''
def zeroDataFill(one_all_list):
  '''
  对于0数据处理,简单实现版本,可忽略
  '''
  res_list=[]
  for i in range(len(one_all_list)):
    if one_all_list[i]!=0:
      res_list.append(one_all_list[i])
    else:
      if i==0:
        for j in range(1,len(one_all_list)):
          if one_all_list[j]!=0:
            res_list.append(one_all_list[j])
            break
      elif i==len(one_all_list)-1:
        res_list.append(int(sum(res_list[-3:-1])/2))
      else:
        tmp=0
        for j in range(i,len(one_all_list)):
          if one_all_list[j]!=0:
            tmp=one_all_list[j]
            break
        now=(res_list[i-1]+tmp)/2
        res_list.append(int(now))
  print res_list
  return res_list
def dataProcessing(one_all_list,num=7):
  '''
  对于时间序列数据中的 0 进行处理，采用滑动平均的方法来填充(默认时间为一周)
  '''
  nozero_list=[one for one in one_all_list if one!=0]
  before_avg,last_avg=sum(nozero_list[:num])/num,sum(nozero_list[-1*num:])/num
  res_list=[]
  for i in range(len(one_all_list)):
    if one_all_list[i]!=0:
      res_list.append(one_all_list[i])
    else:
      tmp=int(num/2)+1
      if i<=tmp:
        res_list.append(int(before_avg))
      elif i>=len(one_all_list)-tmp:
        res_list.append(int(last_avg))
        slice_list=one_all_list[i-tmp:i+tmp+1]
        res_list.append(int(sum(slice_list)/(num-1)))
  print res_list
  return res_list
if __name__=='__main__':
  one_all_list=[0,12,3,5,1,5,7,8,4,0,12,14,0,0,45,34,67,43,0,9,1,0]
  zeroDataFill(one_all_list)
  dataProcessing(one_all_list,num=7)