Re: [R] removing a specific number of digist from a character string
test - c(060907_17_3_5_1_1_2909.tif, 060907_17_3_5_2_1_2910.tif,
060907_17_3_5_3_1_2911.tif)
sub('[[:digit:]][[:digit:]][[:digit:]][[:digit:]]\.tif', '', test)
or
test - c(060907_17_3_5_1_1_2909.tif, 060907_17_3_5_2_1_2910.tif,
060907_17_3_5_3_1_2911.tif)
sub('[[:digit:]]{4}\.tif', '', test)
-- Jeff.
On Sep 17, 2007, at 11:21 AM, Kim Milferstedt wrote:
Hello,
I would like to remove the last 8 digists of character strings in a
vector. Below I added a couple of elements from that vector.
I have a problem defining a pattern to replace the digits using for
example sub. Removing the .tif part works fine using
sub('.tif',,x), but how do I get rid of the four preceding digits?
Thanks for your help,
Kim
Input:
[3988]
060907_17_3_5_1_1_2909.tif 060907_17_3_5_2_1_2910.tif
060907_17_3_5_3_1_2911.tif
[3991]
060907_17_3_5_4_1_2912.tif 060907_17_3_5_5_1_2913.tif
060907_17_3_5_6_1_2914.tif
Desired output:
[3988] 060907_17_3_5_1_1_ 060907_17_3_5_2_1_
060907_17_3_5_3_1_
[3991] 060907_17_3_5_4_1_ 060907_17_3_5_5_1_
060907_17_3_5_6_1_
__
Kim Milferstedt
University of Illinois at Urbana-Champaign
Department of Civil and Environmental Engineering
4125 Newmark Civil Engineering Laboratory
205 North Mathews Avenue MC-250
Urbana, IL 61801
USA
phone: (001) 217 333-9663
fax: (001) 217 333-6968
email: [EMAIL PROTECTED]
http://cee.uiuc.edu/research/morgenroth
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-
guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] removing a specific number of digist from a character string
For the sake of absolute correctness:
sub('[[:digit:]]{4}\.tif', '', test)
should be
sub('[[:digit:]]{4}\\.tif', '', test)
-- Jeff.
On Sep 17, 2007, at 11:59 AM, Jeffrey Robert Spies wrote:
test - c(060907_17_3_5_1_1_2909.tif, 060907_17_3_5_2_1_2910.tif,
060907_17_3_5_3_1_2911.tif)
sub('[[:digit:]][[:digit:]][[:digit:]][[:digit:]]\.tif', '', test)
or
test - c(060907_17_3_5_1_1_2909.tif, 060907_17_3_5_2_1_2910.tif,
060907_17_3_5_3_1_2911.tif)
sub('[[:digit:]]{4}\.tif', '', test)
-- Jeff.
On Sep 17, 2007, at 11:21 AM, Kim Milferstedt wrote:
Hello,
I would like to remove the last 8 digists of character strings in a
vector. Below I added a couple of elements from that vector.
I have a problem defining a pattern to replace the digits using for
example sub. Removing the .tif part works fine using
sub('.tif',,x), but how do I get rid of the four preceding digits?
Thanks for your help,
Kim
Input:
[3988]
060907_17_3_5_1_1_2909.tif 060907_17_3_5_2_1_2910.tif
060907_17_3_5_3_1_2911.tif
[3991]
060907_17_3_5_4_1_2912.tif 060907_17_3_5_5_1_2913.tif
060907_17_3_5_6_1_2914.tif
Desired output:
[3988] 060907_17_3_5_1_1_ 060907_17_3_5_2_1_
060907_17_3_5_3_1_
[3991] 060907_17_3_5_4_1_ 060907_17_3_5_5_1_
060907_17_3_5_6_1_
__
Kim Milferstedt
University of Illinois at Urbana-Champaign
Department of Civil and Environmental Engineering
4125 Newmark Civil Engineering Laboratory
205 North Mathews Avenue MC-250
Urbana, IL 61801
USA
phone: (001) 217 333-9663
fax: (001) 217 333-6968
email: [EMAIL PROTECTED]
http://cee.uiuc.edu/research/morgenroth
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-
guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-
guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] removing a specific number of digist from a character string
Hello,
I would like to remove the last 8 digists of character strings in a
vector. Below I added a couple of elements from that vector.
I have a problem defining a pattern to replace the digits using for
example sub. Removing the .tif part works fine using
sub('.tif',,x), but how do I get rid of the four preceding digits?
Thanks for your help,
Kim
Input:
[3988]
060907_17_3_5_1_1_2909.tif 060907_17_3_5_2_1_2910.tif
060907_17_3_5_3_1_2911.tif
[3991]
060907_17_3_5_4_1_2912.tif 060907_17_3_5_5_1_2913.tif
060907_17_3_5_6_1_2914.tif
Desired output:
[3988] 060907_17_3_5_1_1_ 060907_17_3_5_2_1_ 060907_17_3_5_3_1_
[3991] 060907_17_3_5_4_1_ 060907_17_3_5_5_1_ 060907_17_3_5_6_1_
__
Kim Milferstedt
University of Illinois at Urbana-Champaign
Department of Civil and Environmental Engineering
4125 Newmark Civil Engineering Laboratory
205 North Mathews Avenue MC-250
Urbana, IL 61801
USA
phone: (001) 217 333-9663
fax: (001) 217 333-6968
email: [EMAIL PROTECTED]
http://cee.uiuc.edu/research/morgenroth
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
