【问题标题】:Find match and similarity in two of files R language在 R 语言中的两个文件中查找匹配和相似性
【发布时间】:2015-03-11 12:14:09
【问题描述】:

我有两个大文件,文件内容如下:

df1

df2

输出

df1

structure(list(X00.00.location.long. = structure(c(1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 
4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 
5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 
6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 
6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 
6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 7L, 7L, 7L, 7L, 
7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 
7L, 7L, 7L, 7L), .Label = c("00:00,location,long|", "00:00,location,long|00:00,location,same|", 
"00:00,location,long|00:00,runapps,com.sol.sviewcall|00:00,screen,OFF|", 
"00:00,location,long|00:00,wifi,dlink, PATECH-AP|00:00,runapps,com.kakao.talk|00:00,screen,OFF|", 
"00:00,location,long|00:00,wifi,dlink, PATECH-AP|00:00,wifi,dlink, iptime|00:00,wifi,dlink|", 
"00:00,location,long|00:00,wifi,dlink|", "00:00,location,long|00:00,wifi,dlink|00:00,location,same|00:00,wifi,dlink, iptime|"
), class = "factor")), .Names = "X00.00.location.long.", class = "data.frame", row.names = c(NA, 
-183L))

df2

structure(list(X00.00.location.long. = structure(c(1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 
1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 
3L, 3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 
4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 5L, 5L, 5L, 
5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 5L, 
5L, 5L, 5L, 5L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 
6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 6L, 7L, 7L, 7L, 7L, 7L, 
7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L, 
7L, 7L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 
8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 8L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 
9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 10L, 
10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L, 
10L, 10L, 10L, 10L, 10L, 10L, 10L, 10L), .Label = c("00:00,location,long|", 
"00:00,location,long|00:00,bluetooth,SCH-W860(35**)|00:00,wifi,dlink, iptime|", 
"00:00,location,long|00:00,bluetooth,SCH-W860(35**)|00:00,wifi,dlink, SK_WiFi26C4, U+zone, U+Net642B|", 
"00:00,location,long|00:00,wifi,dlink, SK_WiFi26C4|", "01:00,location,long|", 
"01:00,location,long|01:00,bluetooth,SCH-W860(35**)|01:00,screen,OFF|01:00,runapps,com.kakao.talk|", 
"01:00,location,long|01:00,bluetooth,SCH-W860(35**)|01:00,wifi,dlink, iptime, SK_WiFi26C4|01:00,wifi,dlink, iptime, PISnet_4D9740|01:00,wifi,dlink, iptime, SK_WiFi26C4, KT_WLAN_BBE3|01:00,runapps,com.buzzpia.aqua.launcher|01:00,screen,OFF|", 
"01:00,location,long|01:00,screen,OFF|", "02:00,location,long|02:00,wifi,dlink, iptime, SK_WiFi26C4|02:00,wifi,dlink, iptime, SK_WiFi26C4, KT_WLAN_BBE3|02:00,wifi,dlink, iptime, KT_WLAN_BBE3|02:00,runapps,com.kakao.talk|02:00,screen,OFF|", 
"02:00,location,long|02:00,wifi,dlink, iptime|02:00,runapps,com.buzzpia.aqua.launcher|02:00,runapps,com.android.mms|02:00,screen,OFF|"
), class = "factor")), .Names = "X00.00.location.long.", class = "data.frame", row.names = c(NA, 
-232L))

我的问题是:

  1. 我想知道所有行的匹配数据的百分比,对于 例如在 df1 和 df2 之间有多少行具有相同的数据。

  2. 我想知道所有行的相似度数据的百分比,一个 的数据看起来像“00:,location,long” 我使用分隔符“|”到 将一个数据与其他数据分开。在这种情况下,如果 df1 中有一行并且 df2 >= 75 % 相似,我认为行是相似的。例如行包含三个数据,两个数据相同,一个数据不同,即相似

  3. 我想知道df1中所有行的不同数据的百分比 和 df2

所以,我想计算匹配行的百分比(df1 中有多少行与 df2 中的行匹配),相似行的百分比(df1 中有多少行与 df2 中的行相似),以及百分比不同行数(df1 中的行数与 df2 中的行数不同)

基础数据是 df1,我的意思是我想知道 df2 到 df1 有多少行匹配、相似或不同

我使用 R 语言,我尝试过但我卡住了。 希望有人能给我点灯

【问题讨论】:

  • 我建议您从正确导入数据集开始。如果您对此有疑问,请明确定义问题,提供示例数据以及导入的结构最终会是什么样子。我看到了许多问题,例如并非所有行都有相同的列数。

标签: r dataframe compare similarity


【解决方案1】:

我猜你的问题是在 df2 中找到不在 df1 中的所有行,或者在 df2 中找到 df1 中的所有行。 如果你的意思是,你可以使用sqldf library

library(sqldf)

df2NotIndf1 <- sqldf('SELECT * FROM df2 EXCEPT SELECT * FROM df1')
df2Indf1 <- sqldf('SELECT * FROM df2 INTERSECT SELECT * FROM df1')

另一种方式,你可以使用dplyr

library(dplyr)
anti_join(df2,df1)
semi_join(df2,df1)

对于相似度,如果要衡量两个字符串数据之间的相似度得分,可以使用Levenshtein Distance,详见this link。您可以将其应用于您的数据框。

【讨论】:

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