Regular expression

HI,
vec1<-"'asd'f"
?vec2<-'"asd"f'
?gsub("[\"]","",vec2)
#[1] "asdf"
?gsub("[']","",vec1)
#[1] "asdf"
A.K.





----- Original Message -----
From: Christofer Bogaso <bogaso.christofer at gmail.com>
To: r-help <r-help at r-project.org>
Cc: 
Sent: Tuesday, January 15, 2013 4:38 PM
Subject: [R] Regular expression

Hello again,

I am having a problem on Regular expression. Let say I have following code:

gsub("[',]", "", "'asd'f")

[1] "asdf"


This is perfect. However I am having problem if I include "" (i.e. the
double quote) in the first argument as the pattern search:

gsub("[',"]", "", "'asd'f")

Error: unexpected ']' in "gsub("[',"]"


What is the right way to include the 'double quote' in the search field?

Thanks for your help.

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