R help - Oct 2005 - Can anyone please tell me how to strip the white spaces from a character vector?

for example:
> a$tic[1:10]
[1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
[7] "ABM " "AFCE " "AG " "ATG "
 Can anyone please tell me how to strip the white spaces from a$tic?
 Thanks,
 Roger

	[[alternative HTML version deleted]]

Quoting roger bos <roger.bos at gmail.com>:
> for example:
>> a$tic[1:10]
> [1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
> [7] "ABM " "AFCE " "AG " "ATG "
> Can anyone please tell me how to strip the white spaces from a$tic?
> Thanks,
> Roger
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>
> a <- c("ab ", "cd", "ef ")
> gsub(" ", "", a)
[1] "ab" "cd" "ef"

Carlos J. Gil Bellosta
http://www.datanalytics.com

On 10/25/05 8:51 AM, "roger bos" <roger.bos at gmail.com> wrote:
> for example:
>> a$tic[1:10]
> [1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
> [7] "ABM " "AFCE " "AG " "ATG "
> Can anyone please tell me how to strip the white spaces from a$tic?
> Thanks,
> Roger
> 
> [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
> 
See ?gsub.

gsub(' ','',a$tic)

Sean

On Tue, 2005-10-25 at 08:51 -0400, roger bos wrote:
> for example:
> > a$tic[1:10]
> [1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
> [7] "ABM " "AFCE " "AG " "ATG "
>  Can anyone please tell me how to strip the white spaces from a$tic?
>  Thanks,
>  Roger
Roger, 

See the next to last set of examples in ?sub.
> a <- c("ABM ", "AFCE ", "AG ", "ATG
")
> a
[1] "ABM "  "AFCE " "AG "   "ATG "
> a.new <- sub(' +$', '', a)
> a.new
[1] "ABM"  "AFCE" "AG"   "ATG"


Also, if this data was generated using read.table() or one of it's
variants, note the use of the 'strip.white' argument in ?read.table.

HTH,

Marc Schwartz

Le 25.10.2005 14:51, roger bos a ??crit :
>for example:
>  
>
>>a$tic[1:10]
>>    
>>
>[1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
>[7] "ABM " "AFCE " "AG " "ATG "
> Can anyone please tell me how to strip the white spaces from a$tic?
> Thanks,
> Roger
>  
>
gsub(' ','',a$tic)

-- 
visit the R Graph Gallery : http://addictedtor.free.fr/graphiques
+---------------------------------------------------------------+
| Romain FRANCOIS - http://francoisromain.free.fr               |
| Doctorant INRIA Futurs / EDF                                  |
+---------------------------------------------------------------+

Try trim() in gdata package.

Wuming

On 10/25/05, roger bos <roger.bos at gmail.com>
wrote:
> for example:
> > a$tic[1:10]
> [1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
> [7] "ABM " "AFCE " "AG " "ATG "
>  Can anyone please tell me how to strip the white spaces from a$tic?
>  Thanks,
>  Roger
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>

roger bos wrote:
> for example:
> 
>>a$tic[1:10]
> 
> [1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
> [7] "ABM " "AFCE " "AG " "ATG "
>  Can anyone please tell me how to strip the white spaces from a$tic?

Not beeing an expert for regular expressions, I'd try
    sub(" *$", "", sub("^ *", "",
a$tic))
to strip from beginnings and ends but there may be far better approches.
In order to remove *all* blanks, try
    gsub(" ", "", a$tic)

Uwe Ligges

>  Thanks,
>  Roger
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html

one way is to use strsplit(), i.e.,

xx <- c("AIR ", "ABCB ", "ABXA ", "ACMR
", "ADCT ", "ADEX ")
unlist(strsplit(xx, " "))

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://www.med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "roger bos" <roger.bos at gmail.com>
To: "(r-help at stat.math.ethz.ch.)" <R-help at
stat.math.ethz.ch>
Sent: Tuesday, October 25, 2005 2:51 PM
Subject: [R] Can anyone please tell me how to strip the white spaces 
from acharacter vector?

> for example:
>> a$tic[1:10]
> [1] "AIR " "ABCB " "ABXA " "ACMR "
"ADCT " "ADEX "
> [7] "ABM " "AFCE " "AG " "ATG "
> Can anyone please tell me how to strip the white spaces from a$tic?
> Thanks,
> Roger
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 

Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm

What about

xx <- c("AIR ", "ABCB ", "ABXA ", "ACMR
", "ADCT ", "ADEX ","  AAA")

xx=gsub("[[:blank:]]","",xx)

Stefano

On Tue, Oct 25, 2005 at 03:14:39PM +0200, Dimitris Rizopoulos wrote:
<Dimitris>one way is to use strsplit(), i.e.,
<Dimitris>
<Dimitris>xx <- c("AIR ", "ABCB ", "ABXA
", "ACMR ", "ADCT ", "ADEX ")
<Dimitris>
<Dimitris>Best,
<Dimitris>Dimitris
<Dimitris>
<Dimitris>----
<Dimitris>Dimitris Rizopoulos
<Dimitris>Ph.D. Student
<Dimitris>Biostatistical Centre
<Dimitris>School of Public Health
<Dimitris>Catholic University of Leuven
<Dimitris>
<Dimitris>Address: Kapucijnenvoer 35, Leuven, Belgium
<Dimitris>Tel: +32/(0)16/336899
<Dimitris>Fax: +32/(0)16/337015
<Dimitris>Web: http://www.med.kuleuven.be/biostat/
<Dimitris>     http://www.student.kuleuven.be/~m0390867/dimitris.htm
<Dimitris>
<Dimitris>
<Dimitris>----- Original Message ----- 
<Dimitris>From: "roger bos" <roger.bos at gmail.com>
<Dimitris>To: "(r-help at stat.math.ethz.ch.)" <R-help at
stat.math.ethz.ch>
<Dimitris>Sent: Tuesday, October 25, 2005 2:51 PM
<Dimitris>Subject: [R] Can anyone please tell me how to strip the white
spaces
<Dimitris>from acharacter vector?
<Dimitris>
<Dimitris>
<Dimitris>> for example:
<Dimitris>>> a$tic[1:10]
<Dimitris>> [1] "AIR " "ABCB " "ABXA "
"ACMR " "ADCT " "ADEX "
<Dimitris>> [7] "ABM " "AFCE " "AG "
"ATG "
<Dimitris>> Can anyone please tell me how to strip the white spaces
from a$tic?
<Dimitris>> Thanks,
<Dimitris>> Roger
<Dimitris>>
<Dimitris>> [[alternative HTML version deleted]]
<Dimitris>>
<Dimitris>> ______________________________________________
<Dimitris>> R-help at stat.math.ethz.ch mailing list
<Dimitris>> https://stat.ethz.ch/mailman/listinfo/r-help
<Dimitris>> PLEASE do read the posting guide! 
<Dimitris>> http://www.R-project.org/posting-guide.html
<Dimitris>> 
<Dimitris>
<Dimitris>
<Dimitris>Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
<Dimitris>
<Dimitris>______________________________________________
<Dimitris>R-help at stat.math.ethz.ch mailing list
<Dimitris>https://stat.ethz.ch/mailman/listinfo/r-help
<Dimitris>PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html