Hi:
I'm not quite sure what you have in mind, but...
Input data strdat.txt:
probeID
rc_AI104113_at
rc_AI178259_f_at
rc_AI179134_i_at
rc_AI179134_f_at
rc_AI104113_at
rc_AA819429_f_at
strg <- paste(scan('strdat.txt', what = '', skip = 1), collapse = ',')
strg
[1]
"rc_AI104113_at,rc_AI178259_f_at,rc_AI179134_i_at,rc_AI179134_f_at,rc_AI104113_at,rc_AA819429_f_at"
# Try to get single quotes surrounding each string
strsep <- paste(scan('strdat.txt', what = '', skip = 1))
Read 6 items
> strsep
[1] "rc_AI104113_at" "rc_AI178259_f_at" "rc_AI179134_i_at"
"rc_AI179134_f_at"
[5] "rc_AI104113_at" "rc_AA819429_f_at"
strsep2 <- sapply(strsep, function(x) paste("'", x, "'", sep = ""))
paste(strsep2, collapse = ',')
[1]
"'rc_AI104113_at','rc_AI178259_f_at','rc_AI179134_i_at','rc_AI179134_f_at','rc_AI104113_at','rc_AA819429_f_at'"
HTH,
Dennis
On Wed, Mar 9, 2011 at 12:35 PM, Fahim Mohammad <fahim...@gmail.com> wrote:
> I have a file with a data in columnar format like below:
>
> probeID
> rc_AI104113_at
> rc_AI178259_f_at
> rc_AI179134_i_at
> rc_AI179134_f_at
> rc_AI104113_at
> rc_AA819429_f_at
>
> How can I rewrite it in the format below:
> 'rc_AI104113_at', 'rc_AI178259_f_at', 'rc_AI179134_i_at',
> 'rc_AI179134_f_at', 'rc_AI104113_at', 'rc_AA819429_f_at'
>
>
> Is there any function to do this. I can do it by using iterative paste but
> I just want to avoid it for efficiency reason as number of probes is very
> high.
>
> Thanks
>
> --Fahim
>
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>
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