Delete initial (matching) pattern from a string

Question

I have the following vector of character strings:

v<-c("RT @name1: hello world", "Hi guys, how are you?", "Hello RT I have no text", "RT @name2: Hello!")

I would like to delete only those RT that are positioned at the beginning of strings and store the results in another vector, e.g., w:

> w
 "@name1: hello world"    "Hi guys, how are you?"     "Hello RT I have no text"     "@name2: Hello!"

Maybe I could use function str_extract_all from the package stringr, but I can't apply it to my problem.

score 1 · Accepted Answer · answered Mar 03 '20 at 18:12

1

Use gsub and the 'anchor' ^, which signifies the beginning of a string:

w <- gsub("^RT\\s", "", v)

answered Mar 03 '20 at 18:12

Chris Ruehlemann

score 0 · Answer 2 · answered Mar 03 '20 at 17:22

0

<-  str_replace(v,"^RT","")

answered Mar 03 '20 at 17:22

just put carat symbol at the begnning of regex pattern – Sajil Alakkalakath Mar 03 '20 at 17:23
vector name is missing – Chris Ruehlemann Mar 03 '20 at 18:10

2 Answers2