Question

我关注正则表达式，但我不知道该如何传递大写字母和小Unicode字母。

正则表达式：

# Starting point 
df <- data.frame(var_home=c("a","b","c","d","e"),
                 var_datevar_A5_3_B32=c("01-12-2012","05-06-2014","03-09-2015","03-03-2016",NA),var_datevar_A5_4_B33=c("07-12-2012",NA,"07-07-2017","13-03-2016",NA),var_datevar_A5_5_B34=c("05-03-2013",NA,NA,"23-03-2016",NA),var_purchased_A5_3_B32=c(NA,"Y",NA,NA,NA),var_purchased_A5_4_B33=c("N","N","Y",NA,NA),var_purchased_A5_5_B34=c("Y",NA,NA,NA,NA),
                 var_viewed_A5_3_B32=c("Y","N","Y","Y",NA),var_viewed_A5_4_B33=c(NA,NA,NA,"Y","N"),var_viewed_A5_5_B34=c(NA,NA,NA,"Y",NA),var_sold_A5_3_B32=c("NA","N",NA,"N",NA),var_sold_A5_4_B33=c("Y","N",NA,"N",NA),var_sold_A5_5_B34=c("N",NA,NA,NA,"Y"))



# Goal
dfgoal <- data.frame(var_home=c("a","b","c","d","e"),
                 var_datevar_A5_3_B32=c("01-12-2012","05-06-2014","03-09-2015","03-03-2016",NA),var_datevar_A5_4_B33=c("07-12-2012",NA,"07-07-2017","13-03-2016",NA),var_datevar_A5_5_B34=c("05-03-2013",NA,NA,"23-03-2016",NA),var_purchased_A5_3_B32=c(NA,"Y",NA,NA,NA),var_purchased_A5_4_B33=c("N","N","Y",NA,NA),var_purchased_A5_5_B34=c("Y",NA,NA,NA,NA),
                 var_viewed_A5_3_B32=c("Y","N","Y","Y",NA),var_viewed_A5_4_B33=c(NA,NA,NA,"Y","N"),var_viewed_A5_5_B34=c(NA,NA,NA,"Y",NA),var_sold_A5_3_B32=c("NA","N",NA,"N",NA),var_sold_A5_4_B33=c("Y","N",NA,"N",NA),var_sold_A5_5_B34=c("N",NA,NA,NA,"Y"),
                 var_date_viewed =c("01-12-2012",NA,"03-09-2015","03-03-2016,13-03-2016,23-03-2016",NA),var_date_sold=c("07-12-2012",NA,NA,NA,NA),var_date_purchased=c("05-03-2013","05-06-2014","07-07-2017",NA,NA))



# Attempt pseudo-code 
var_date_viewed <- ifelse((!is.na(var_datevar_A5_3_B32) & var_viewed_A5_3_B32=="Y") | (!is.na(var_datevar_A5_4_B33) & var_viewed_A5_4_B33=="Y") | (!is.na(var_datevar_A5_5_B34) & var_viewed_A5_5_B34=="Y"), PASTE_THE_DATE,NA)

ddfoŁ94_9由于“Ł”或“ł”失败，但应该通过
DdfoŁ94_9通过了

我在这里想念的是什么？我尝试使用\ p {L}，但不起作用。

正则表达式C＃中的大写和小Unicode字母

0 个答案: