Hello,
See inline.
Em 15-06-2012 08:03, Duncan Murdoch escreveu:
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
This can be seen if we try to assign the second string.
s1 <- "G:\Compensation Audits_Reports\Step Audit\Steps off Step.accdb"
Error: '\C' is an unrecognized escape in character string starting "G:\C"
The right way would be
s2 <- 'G:\\Compensation Audits_Reports\\Step Audit\\Steps off Step.accdb'
pattern <- '\\\\'
gsub(pattern, '/', s2)
[1] "G:/Compensation Audits_Reports/Step Audit/Steps off Step.accdb"
Note also the use of 'gsub', Global sub. I believe it's obvious that the
purpose is to substitute all backslashes by forward ones.
Hope this helps,
Rui Barradas
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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and provide commented, minimal, self-contained, reproducible code.
