数据清洗工作日志

2020年9月23日

方案构思

1,获取trace出发点和目的地
2,获取出发点和目的点对应的经纬度坐标添加到trace中
3,获取到对应的street_number
4,将stree_number添加到trace的路径中
5,筛选路径出发点和目的地相同的分类

读取数据


trace = []
with open('./taxi/trace/Taxi_105','r',encoding='utf8') as fp:
    for line in fp:
        trace.append(json.loads(line))

取出数据

for i in range(len(trace)):
    print('i=',i)
    print('出发地：', trace[i]['pointList'][0])
    print('目的地：', trace[i]['pointList'][len(trace[i]['pointList'])-1])

# 点坐标信息
point = []
with open('./taxi/point/Taxi_105','r',encoding='utf8') as fp:
    for line in fp:
        point.append(json.loads(line))


print('-------------------------------')
 

# 取出需要数据
for i in range(len(point)):
    print('i=',i)
    print('数据 id：', point[i]['pointId'])
    print('坐标 x：', point[i]['pointX'])
    print('坐标 y：', point[i]['pointy'])

2020年9月24日

url请求变量参数

a= 31.225696563611
b= 121.49884033194
r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={a},{b}'.format(a=a,b=b))    
print(r.json())         
print('street_number=',r.json()['result']['addressComponent']['street_number'])

json数据的追加

embed = {'start_street':188,'des_street':199}
for i in embed:
    trace[0][i]=embed[i]
    
jsObj = json.dumps(trace[0])


print(jsObj)

2020年9月25日

出现BUG



for j in range(len(trace)):
    print('j=',j)
    dep=trace[j]['pointList'][0]
    des=trace[j]['pointList'][len(trace[j]['pointList'])-1]   
    for i in range(len(point)):
        print('dep',type(dep))
        print('id',type(point[i]['pointId']))
        print('-----------------------------------')
        if point[i]['pointId'] == dep:
            print('666')
            x = point[i]['pointX']
            y = point[i]['pointy']
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            dep_street = r.json()['result']['addressComponent']['street_number']
            print(dep_street)
    for i in range(len(point)):
        if point[i]['pointId'] == des:
            x = point[i]['pointX']
            y = point[i]['pointy']
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            des_street = r.json()['result']['addressComponent']['street_number']

找到问题

初步调试



import json

import requests

# 路线轨迹
trace = []
with open('./taxi/trace/Taxi_105','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))


fp1.close


# 点坐标信息
point = []
with open('./taxi/point/Taxi_105','r',encoding='utf8') as fp2:
    for line in fp2:
        point.append(json.loads(line))
fp2.close







# ----------------------------------------------------------------
dep_street=0
des_street=2

for j in range(len(trace)):
    print('j=',j)
    dep=trace[j]['pointList'][0]
    des=trace[j]['pointList'][len(trace[j]['pointList'])-1]   
    for i in range(len(point)):
        if point[i]['pointId'] == str(dep):
            y = point[i]['pointX']
            x = point[i]['pointy']    
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            dep_street = r.json()['result']['addressComponent']['street_number']
            break
            
    for i in range(len(point)):
        if point[i]['pointId'] == des:
            y = point[i]['pointX']
            x = point[i]['pointy']
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            des_street = r.json()['result']['addressComponent']['street_number']
            break
    embed = {'dep_street':dep_street,'des_street':des_street}
    for i in embed:
        trace[j][i]=embed[i]
    
    jsObj = json.dumps(trace[j])
    print(jsObj)

整理调试


# -*- coding: utf-8 -*-
"""
1,获取trace出发点和目的地
2,获取出发点和目的点对应的经纬度坐标添加到trace中
3,获取到对应的street_number
4,将stree_number添加到trace的路径中
5,筛选路径出发点和目的地相同的分类
"""
import json

import requests

# 读取路线轨迹------------------------------------------------------------
trace = []
with open('./taxi/trace/Taxi_105','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))


fp1.close


# 读取点坐标信息---------------------------------------------------------
point = []
with open('./taxi/point/Taxi_105','r',encoding='utf8') as fp2:
    for line in fp2:
        point.append(json.loads(line))
fp2.close


# 处理数据----------------------------------------------------------------
dep_street = -1
des_street = -1
carId = -1

for j in range(len(trace)):
    print('j=',j)
    dep=trace[j]['pointList'][0]
    des=trace[j]['pointList'][len(trace[j]['pointList'])-1]   
    for i in range(len(point)):
        if point[i]['pointId'] == str(dep):
            y = point[i]['pointX']
            x = point[i]['pointy']    
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            dep_street = r.json()['result']['addressComponent']['street_number']
            break
            
    for i in range(len(point)):
        if point[i]['pointId'] == str(des):
            y = point[i]['pointX']
            x = point[i]['pointy']
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            des_street = r.json()['result']['addressComponent']['street_number']
            break

    embed = {'dep_street':dep_street,'des_street':des_street}
    for i in embed:
        trace[j][i]=embed[i]  
    jsObj = json.dumps(trace[j])
    print(jsObj)
            

# 写入数据--------------------------------------------------------------------


with open("./test.txt",'wt') as fp3:
    for i in trace:
        print(i,file=fp3)

fp3.close

{'pointList': [10500001, 10500002, 10500003, 10500004, 10500005, 10500006, 10500007, 10500008], 'dep_street': '168号6楼', 'des_street': '6号楼103室'}
{'pointList': [10500009, 105000010, 105000011, 105000012, 105000013, 105000014, 105000015, 105000016, 105000017, 105000018, 105000019, 105000020, 105000021, 105000022], 'dep_street': '226号', 'des_street': '90-2'}
{'pointList': [105000027, 105000028, 105000029, 105000030, 105000031, 105000032, 105000033, 105000034, 105000035, 105000036], 'dep_street': '165号', 'des_street': '420号'}
{'pointList': [105000037, 105000038, 105000039, 105000040, 105000041, 105000042, 105000043, 105000044, 105000045, 105000046, 105000047, 105000048, 105000049, 105000050, 105000051], 'dep_street': '226', 'des_street': '1129弄98'}
{'pointList': [105000053, 105000054, 105000055, 105000056, 105000057, 105000058, 105000059, 105000060], 'dep_street': '20号', 'des_street': '44号'}
{'pointList': [105000065, 105000066, 105000067, 105000068, 105000069, 105000070, 105000071, 105000072, 105000073, 105000074, 105000075, 105000076, 105000077, 105000078, 105000079, 105000080], 'dep_street': '8号', 'des_street': '177号'}
.............

单文件处理完毕

import json

import requests

# 读取路线轨迹------------------------------------------------------------
trace = []
with open('./taxi/taxi/trace/Taxi_105','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))


fp1.close


# 读取点坐标信息---------------------------------------------------------
point = []
with open('./taxi/taxi/point/Taxi_105','r',encoding='utf8') as fp2:
    for line in fp2:
        point.append(json.loads(line))
fp2.close


# 处理数据----------------------------------------------------------------
dep_street = -1
des_street = -1
carId = -1

for j in range(len(trace)):
    print('j=',j)
    dep=trace[j]['pointList'][0]
    des=trace[j]['pointList'][len(trace[j]['pointList'])-1]   
    for i in range(len(point)):
        if point[i]['pointId'] == str(dep):
            y = point[i]['pointX']
            x = point[i]['pointy']    
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            dep_street = r.json()['result']['addressComponent']['street_number']
            break
            
    for i in range(len(point)):
        if point[i]['pointId'] == str(des):
            y = point[i]['pointX']
            x = point[i]['pointy']
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            des_street = r.json()['result']['addressComponent']['street_number']
            carId = point[i]['carId']
            break

    embed = {'dep_street':dep_street,'des_street':des_street,'carId':carId}
    for i in embed:
        trace[j][i]=embed[i]  
    jsObj = json.dumps(trace[j])
    print(jsObj)
            

# 写入数据--------------------------------------------------------------------


with open("./test.txt",'wt') as fp3:
    for i in trace:
        print(i,file=fp3)

fp3.close

2020年9月26日

读取目录下的所有文件


# -*- coding: utf-8 -*-
"""
Created on Fri Sep 25 20:06:24 2020

@author: jacksun
"""

import os

import json

path = "C:/Data/taxi/point" #文件夹目录
files= os.listdir(path) #得到文件夹下的所有文件名称
s = []
for file in files: #遍历文件夹
     if not os.path.isdir(file): #判断是否是文件夹，不是文件夹才打开
          f = open(path+"/"+file); #打开文件

          iter_f = iter(f); #创建迭代器
          str = ""
          for line in iter_f: #遍历文件，一行行遍历，读取文本
              line=line.rstrip("
")
              str = str + line
          s.append(str) #每个文件的文本存到list中
          
print(s) #打印结果

合并写入新文件

print('-------------------------------')
# 写入文件
with open("./point.txt",'wt') as fp3:
    for i in s:
        print(i,file=fp3)

fp3.close

遇到BUG

目前出现了一个BUG: ① 合并文件导致数据格式并不是很整齐

而且 ② 读取单个文件时,并没有按照json格式一个一个读取 , 反而自己合并数据

但是对于少量的(两个)文件合并的时候是正常的 , 可能是文件太多(四千个文件)导致的

解决BUG

每次遍历一行就输入当文件并且换行


# -*- coding: utf-8 -*-
"""
Created on Fri Sep 25 20:06:24 2020

@author: jacksun
"""

import os

import json

import requests

path = "C:/Data/taxi/trace"  # 文件夹目录
files = os.listdir(path)  # 得到文件夹下的所有文件名称
s = []
for file in files:  # 遍历文件夹
    if not os.path.isdir(file):  # 判断是否是文件夹，不是文件夹才打开
        f = open(path + "/" + file);  # 打开文件

        iter_f = iter(f);  # 创建迭代器
        str = ""
        i=0
        for line in iter_f:  # 遍历文件，一行行遍历，读取文本
            line = line.rstrip("
")
            with open("./trace_full.txt", 'a') as fp3:

                    fp3.write(line+"
")
            fp3.close



print('-------------------------------ok')

2020年9月27日

对相同首尾的分类(单文件)


# -*- coding: utf-8 -*-

# 分类数据
import json
import pandas as pd
import requests

# 读取路线轨迹------------------------------------------------------------
trace = []
with open('./test.txt','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))


fp1.close


df=pd.DataFrame(trace)

print("------数据分组统计个数-----")

groupnum = df.groupby(['dep_street']).size()

print(groupnum)

#打印每组数据 这个很有用

print("------数据分组-----")

for groupname,grouplist in df.groupby('dep_street'):

    print(groupname)

    print(grouplist)


# print(df.set_index(['dep_street','traceId']))

总结

目前数据清洗进入了尾声,现在让我们进行复盘

获取trace出发点和目的地
获取出发点和目的点对应的经纬度坐标添加到trace中,再根据经纬度通过百度api获得街道
然后在加入一个字段traceId 用于分类的时候用字典或者hashmap储存路径 ,将stree_number添加到trace的路径中
再将处理的文件保存下来,用于后面的分类

# -*- coding: utf-8 -*-

import json
import pandas
import requests

# 路线轨迹
trace = []
with open('./taxi/taxi/trace/Taxi_105','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))
fp1.close

# 点坐标信息
point = []
with open('./taxi/taxi/point/Taxi_105','r',encoding='utf8') as fp2:
    for line in fp2:
        point.append(json.loads(line))
fp2.close

# 单个文件处理

# 处理数据----------------------------------------------------------------
dep_street = -1
des_street = -1
traceId = -1
carId = -1

for j in range(len(trace)):
    print('j=',j)
    dep=trace[j]["pointList"][0]
    des=trace[j]["pointList"][len(trace[j]["pointList"])-1]   

  
    for i in range(len(point)):
        if point[i]["pointId"] == str(dep):
            y = point[i]["pointX"]
            x = point[i]["pointy"]    
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            dep_street = r.json()['result']['addressComponent']['street_number']
            break
            
    for i in range(len(point)):
        if point[i]["pointId"] == str(des):
            y = point[i]["pointX"]
            x = point[i]["pointy"]
            r = requests.get('http://api.map.baidu.com/reverse_geocoding/v3/?ak=ggWQp8TQXm39eaDlW6OBkO3HBnvbYHUT&output=json&coordtype=wgs84ll&location={x},{y}'.format(x=x,y=y))     
            des_street = r.json()['result']['addressComponent']['street_number']
            carId = point[i]["carId"]
            traceId+=1
            break
    embed = {"dep_street":dep_street,"des_street":des_street,"carId":carId,"traceId":traceId}
    for i in embed:
        trace[j][i]=embed[i]  
    jsObj = json.dumps(trace[j])
    with open("./test.txt",'a',encoding='utf-8') as fp3:
        fp3.write(jsObj+'
')

    fp3.close
    print(jsObj)

当然上面的只是单个文件,在处理文件之前,我们需要将两个文件trace和point文件夹的所有文件分别合并成

# -*- coding: utf-8 -*-
"""
Created on Fri Sep 25 20:06:24 2020

@author: jacksun
"""

import os

import json

import requests

path = "C:/Data/taxi/trace"  # 文件夹目录
files = os.listdir(path)  # 得到文件夹下的所有文件名称
s = []
for file in files:  # 遍历文件夹
    if not os.path.isdir(file):  # 判断是否是文件夹，不是文件夹才打开
        f = open(path + "/" + file);  # 打开文件

        iter_f = iter(f);  # 创建迭代器
        str = ""
        i=0
        for line in iter_f:  # 遍历文件，一行行遍历，读取文本
            line = line.rstrip("
")
            with open("./trace_full.txt", 'a') as fp3:

                    fp3.write(line+"
")
            fp3.close



print('-------------------------------ok')

筛选路径出发点和目的地相同的分类

# -*- coding: utf-8 -*-

# 分类数据
import json
import pandas as pd
import requests

# 读取路线轨迹------------------------------------------------------------
trace = []
with open('./test.txt','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))


fp1.close


df=pd.DataFrame(trace)

print("------数据分组统计个数-----")

groupnum = df.groupby(['dep_street']).size()

print(groupnum)

#打印每组数据 这个很有用

print("------数据分组-----")

for groupname,grouplist in df.groupby('dep_street'):

    print(groupname)

    print(grouplist)

最后就是将数据整理保存下来



# -*- coding: utf-8 -*-

# 分类数据
import json
import pandas as pd
import requests

# 读取路线轨迹------------------------------------------------------------
trace = []
with open('./test.txt','r',encoding='utf8') as fp1:
    for line in fp1:
        trace.append(json.loads(line))


fp1.close


df=pd.DataFrame(trace)

print("------数据分组统计个数-----")

groupnum = df.groupby(['dep_street','des_street']).size()

print(groupnum)

#打印每组数据 这个很有用

print("------数据分组-----")

for groupname,grouplist in df.groupby(['dep_street','des_street']):
    print(grouplist.to_json(force_ascii=False))

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原文地址：https://www.cnblogs.com/hiszm/p/13726533.html