[R] pattern matching

[arun]

HI,
str1<-"x$Expensive"
regexpr("\\$",str1)[1]
#[1] 2
 str2<-"x$Exp$Expression"
unlist(gregexpr("\\$",str2))
#[1] 2 6


A.K.




----- Original Message -----
From: Data Analytics Corp. <walt at dataanalyticscorp.com>
To: "r-help at R-project.org" <r-help at r-project.org>
Cc: 
Sent: Monday, January 7, 2013 4:22 PM
Subject: [R] pattern matching

Hi,

I have a simple question.  Suppose I have a string "x$Expensive". I want to find the position of the $ in this string; i.e., I want a function that returns 2.  I tried grep, regexpr, etc with no luck, unless I'm just using them incorrectly.  Any suggestions?

Thanks,

Walt

________________________

Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
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________________________
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walt at dataanalyticscorp.com
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