thanks that makes sense... in the previous version of R it worked for
some reason.
On Thu, Aug 13, 2015 at 4:33 PM, Sarah Goslee sarah.gos...@gmail.com
wrote:
Hi,
The + is a special character in regular expressions. If you want to
match a literal + you need to escape it:
Seems more likely to be related to changes in the options stringr uses
when it invokes the regex code? See the different response coming from
base R when told to use a different regex engine:
grep( +proj, syz+project )
[1] 1
grep( +proj, syz+project, perl=TRUE )
Error in grep(+proj,
Hi,
The + is a special character in regular expressions. If you want to
match a literal + you need to escape it:
str_extract(+proj=utm +zone=19 +datum=WGS84 +units=m +no_defs
+ellps=WGS84 +towgs84=0,0,0, \\+proj=[a-zA-Z0-9]*)
Sarah
On Thu, Aug 13, 2015 at 2:55 PM, Mauricio Romero
Hi,
I'm running R 3.2.1 and im having an unexpected problem... when I run the
follwing code it returns an error
library(stringr)
str_extract(+proj=utm +zone=19 +datum=WGS84 +units=m +no_defs +ellps=WGS84
+towgs84=0,0,0, +proj=[a-zA-Z0-9]*)
But I can't find whats wrong with my code.
Thanks
+ is a special character in regular expressions that requires a preceding
pattern to apply to. See ?base::regex.
You need to escape the special with a backslash to remove the special behavior,
and escape the backslash so the R parser will be happy.
str_extract(+proj=utm +zone=19 +datum=WGS84
Hi Group,
I have a question on Stringr package
I have a table like this
X Y
absu - di
acpi - tu
adtu - tu
I want output like this
XY
ab su
ab di
ac pi
ac tu
ad tu
ad tu
I am wondering if this operation can be
#5 ad tu
#6 ad tu
A.K.
- Original Message -
From: Sudip Chatterjee sudipanal...@gmail.com
To: R help r-help@r-project.org
Cc:
Sent: Wednesday, April 10, 2013 12:25 PM
Subject: [R] Stringr Package
Hi Group,
I have a question on Stringr package
I have a table like this
X Y
ab su
On Wed, Apr 10, 2013 at 12:25 PM, Sudip Chatterjee
sudipanal...@gmail.com wrote:
Hi Group,
I have a question on Stringr package
I have a table like this
X Y
absu - di
acpi - tu
adtu - tu
I want output like this
XY
ab su
ab di
ac
10, 2013 1:24 PM
Subject: Re: [R] Stringr Package
Hi,
Assuming that this is a data.frame.
dat1-read.table(text=
X,Y
ab,su-di
ac,pi-tu
ad,tu-tu
,sep=,,header=TRUE,stringsAsFactors=FALSE)
library(stringr)
dat2-data.frame(X=rep(dat1$X,each=2),Y=
unlist(str_split(dat1$Y,-)),stringsAsFactors=FALSE
with(dat, data.frame(X=rep(X, each=2), Y=unlist(strsplit(Y, split= -
str_split_fixed would be a bit safer here.
Hadley
--
Chief Scientist, RStudio
http://had.co.nz/
__
R-help@r-project.org mailing list
10 matches
Mail list logo
