[英]Replacing numbers with characters in a text column in R
I would like to replace some numbers in the text column of my data.我想替换数据文本列中的一些数字。 The numbers are either 8 or 9 digits
and in two formats
.这些号码是8 or 9 digits
,有two formats
。 This is snapshot of the data:这是数据的快照:
df <- data.frame(
notes = c(
'my number is 123-41-567',
"321 12 788 is valid",
'why not taking 987-012-678',
'120 967 325 is correct'
)
)
df %>% select(notes)
notes
1 my number is 123-41-567
2 321 12 788 is valid
3 why not taking 987-012-678
4 120 967 325 is correct
I need to replace them all with a term such as aaaaa
.我需要将它们全部替换为aaaaa
之类的术语。 Hence, the data should look like:因此,数据应如下所示:
notes
1 my number is aaaaa
2 aaaaa is valid
3 why not taking aaaaa
4 aaaaa is correct
Thank you in advance!先感谢您!
Assuming the examples really do cover all possible cases (I would be careful).假设示例确实涵盖了所有可能的情况(我会小心)。 You can do this with the following regular expression:您可以使用以下正则表达式执行此操作:
\\d{3}( |-)\\d{2,3}( |-)\\d{3}
Here's the code for replacing:这是替换代码:
library(dplyr)
library(stringr)
df %>%
mutate(
notes = str_replace_all(notes, '\\d{3}( |-)\\d{2,3}( |-)\\d{3}', 'XXXXXX')
)
notes
1 my number is XXXXXX
2 XXXXXX is valid
3 why not taking XXXXXX
4 XXXXXX is correct
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