[R] Using Sub

[arun]

Hi,

I guess you need something like this:

> str1<-"G:\\Compensation Audits_Reports\\Step Audit\\Steps off Step.accdb"
> gsub('\\\\','/',str1)
[1] "G:/Compensation Audits_Reports/Step Audit/Steps off Step.accdb"


A.K.




----- Original Message -----
From: "Lopez, Dan" <lopez235 at llnl.gov>
To: Duncan Murdoch <murdoch.duncan at gmail.com>
Cc: R help <r-help at r-project.org>
Sent: Monday, June 18, 2012 10:37 AM
Subject: Re: [R] Using Sub

Hi Duncan,

That's right but I want to be able to use this to replace back slashes with front slashes when I copy and paste file paths. How can I make this work so I don't get this error?

Thanks.
Dan

-----Original Message-----
From: Duncan Murdoch [mailto:murdoch.duncan at gmail.com] 
Sent: Friday, June 15, 2012 12:04 AM
To: Lopez, Dan
Cc: R help
Subject: Re: [R] Using Sub

On 12-06-14 6:23 PM, Lopez, Dan wrote:
> Hi,
>
> I have been trying to get the sub function to work but can't for the life of me figure it out. I tried looking at ?sub but I think there is something that I am just not understanding.
>
> Example failed attempts
>> sub("\\","/","G:\Compensation Audits_Reports\Step Audit\Steps off 
>> Step.accdb")
> Error: '\C' is an unrecognized escape in character string starting "G:\C"

This isn't anything to do with sub(), it's the third string that's the problem.  When you say "G:\Comp..." it thinks you've escaped the C, but there's no such escape.

Duncan Murdoch

>
>> sub("\\","/","G:\Compensation Audits_Reports\Step Audit\Steps off 
>> Step.accdb",fixed=TRUE)
> Error: '\C' is an unrecognized escape in character string starting "G:\C"
>
>> sub("\\","/","G:\Compensation Audits_Reports\Step Audit\Steps off 
>> Step.accdb",fixed=FALSE)
> Error: '\C' is an unrecognized escape in character string starting 
> "G:\C")
>
>> sub("/","\","G:\Compensation Audits_Reports\Step Audit\Steps off 
>> Step.accdb")
> Error: unexpected symbol in "sub("/","\","G"
>
> Thanks.
> Dan
>
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