R多个模糊匹配协议创建变量

Question

New to R.我想通过创建一个变量(是/否)来创建一个测试，该变量检查名或姓是否与电子邮件地址模糊匹配。如果是，在该行添加一个'yes'变量。

数据的例子:

id firstname lastname email address match
1 patrick boyles [e-mail] yes
2 zeke cosmos [e-mail] yes
3 foo foo [e-mail] no

我明白我需要使用同意。让我困惑的是如何告诉R检查2列(名字和姓氏)，只检查那一行。

谢谢-新手

Answer 1

library(stringdist) # install.packages("stringdist") b4, if you need to
df <- read.table(header = TRUE, text = "id firstname lastname emailaddress match
1 patrick boyles [e-mail] yes
2 zeke cosmos [e-mail] yes
3 foo foo [e-mail] no")
df$match2 <- ifelse(with(df, stringdist(a = paste0(firstname, lastname), 
                                        b = sub("(.*)@.*", "\1", emailaddress), 
                                        method = "lcs")) <= 7, 
                    "yes", "no")
df
#   id firstname lastname      email.address match match2
# 1  1   patrick   boyles [e-mail]   yes    yes
# 2  2      zeke   cosmos     [e-mail]   yes    yes
# 3  3       foo      foo     [e-mail]    no     no