venkata kirankumar
2009-Feb-19 12:39 UTC
[R] problem with comparing a part of string with whole string
Hi all, I got one problem with comparing strings like if any string is like "*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN DIAMETER*." and i have to compare "*GRAY-WHITE*" with the above string or otherwise i have to compare " *TUMOR BENIGN*" this string with "*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*" i tried with split and compare but its not working can any one suggest how can i compare these type of Strings thanks in advance [[alternative HTML version deleted]]
jim holtman
2009-Feb-19 12:53 UTC
[R] problem with comparing a part of string with whole string
'grep' will tell you if there is a match in the string;> x <- c("*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN DIAMETER*.","*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*") > grep("GRAY-WHITE", x)[1] 1> grep("TUMOR BENIGN", x)[1] 2 On Thu, Feb 19, 2009 at 7:39 AM, venkata kirankumar <kiran4u2all at gmail.com> wrote:> Hi all, > > I got one problem with comparing strings like if any string is like > > "*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN DIAMETER*." > > and i have to compare "*GRAY-WHITE*" with the above string > > or otherwise i have to compare " *TUMOR BENIGN*" this string > with > > "*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*" > > i tried with split and compare but its not working > > can any one suggest how can i compare these type of Strings > > thanks in advance > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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. >-- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?
Petr PIKAL
2009-Feb-19 12:56 UTC
[R] Odp: problem with comparing a part of string with whole string
Hi r-help-bounces at r-project.org napsal dne 19.02.2009 13:39:42:> Hi all, > > I got one problem with comparing strings like if any string is like > > "*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM INDIAMETER*."> > and i have to compare "*GRAY-WHITE*" with the above string > > or otherwise i have to compare " *TUMOR BENIGN*" thisstring> with > > "*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*" > > i tried with split and compare but its not workingWork for regular expressions? vec="*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN DIAMETER*." test="GRAY-WHITE" regexpr(test, vec) [1] 28 attr(,"match.length") [1] 10 Regards Petr> > can any one suggest how can i compare these type of Strings > > thanks in advance > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code.
venkata kirankumar
2009-Feb-20 06:19 UTC
[R] problem with comparing a part of string with whole string
Hi ,
i just attached one file to this mail which contains one modal of my data
and there i have to search for the rows which contains "SPECIMENTYP %in%
"ADIPOSE TISSUE""
and the rows which contains " "PRESERVED" in ORGCHARRES
for that i tried with
" r<-subset(rr,SPECIMENTYP %in% "ADIPOSE TISSUE" &
grep("IN
DIAMETER",rr$ORGCHARRES),select=c(SPECIMENTYP,ORGCHARRES))"
but i got only the rows having "ADIPOSE TISSUE" in
"SPECIMENTYP"
can anyone suggest any of the way for comparision of this type
thanks in advance
On Thu, Feb 19, 2009 at 6:26 PM, Petr PIKAL <petr.pikal at precheza.cz>
wrote:
> Hi
>
> r-help-bounces at r-project.org napsal dne 19.02.2009 13:39:42:
>
> > Hi all,
> >
> > I got one problem with comparing strings like if any string is like
> >
> > "*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN
> DIAMETER*."
> >
> > and i have to compare "*GRAY-WHITE*" with the
above string
> >
> > or otherwise i have to compare " *TUMOR BENIGN*"
this
> string
> > with
> >
> > "*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*"
> >
> > i tried with split and compare but its not working
>
> Work for regular expressions?
>
> vec="*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN
> DIAMETER*."
> test="GRAY-WHITE"
> regexpr(test, vec)
> [1] 28
> attr(,"match.length")
> [1] 10
>
> Regards
> Petr
>
>
> >
> > can any one suggest how can i compare these type of Strings
> >
> > thanks in advance
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
>
http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>
> > and provide commented, minimal, self-contained, reproducible code.
>
>
Daniel Malter
2009-Feb-20 18:28 UTC
[R] problem with comparing a part of string with whole string
Imagine the following data of noises that people make, and you want to know
who makes the noise "blub."
data=data.frame(rbind(c("blah, boo, blub"),c("blabber, baeh,
blib"),c("quack, cheer, blub")))
names(data)=c("noises")
data
searchTerm="blub"
#The first gives a list of all noises that people make
#who also make the "blub" noise (among others)
data$sound[grep(searchTerm,data$noises)]
# This gives the index (row) number of the observation
# of who makes the "blub" noise
which(data$noises==data$noises[grep(searchTerm,data$noises)])
Is that what you want?
Daniel
-------------------------
cuncta stricte discussurus
-------------------------
-----Urspr?ngliche Nachricht-----
Von: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Im
Auftrag von venkata kirankumar
Gesendet: Friday, February 20, 2009 1:20 AM
An: Petr PIKAL
Cc: r-help at r-project.org
Betreff: Re: [R] problem with comparing a part of string with whole string
Hi ,
i just attached one file to this mail which contains one modal of my data
and there i have to search for the rows which contains "SPECIMENTYP %in%
"ADIPOSE TISSUE""
and the rows which contains " "PRESERVED" in ORGCHARRES
for that i tried with
" r<-subset(rr,SPECIMENTYP %in% "ADIPOSE TISSUE" &
grep("IN
DIAMETER",rr$ORGCHARRES),select=c(SPECIMENTYP,ORGCHARRES))"
but i got only the rows having "ADIPOSE TISSUE" in
"SPECIMENTYP"
can anyone suggest any of the way for comparision of this type
thanks in advance
On Thu, Feb 19, 2009 at 6:26 PM, Petr PIKAL <petr.pikal at precheza.cz>
wrote:
> Hi
>
> r-help-bounces at r-project.org napsal dne 19.02.2009 13:39:42:
>
> > Hi all,
> >
> > I got one problem with comparing strings like if any string is like
> >
> > "*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN
> DIAMETER*."
> >
> > and i have to compare "*GRAY-WHITE*" with the
above string
> >
> > or otherwise i have to compare " *TUMOR BENIGN*"
this
> string
> > with
> >
> > "*MEDULLRY TUMOR BENIGN,TYP PHEOCHROMOCYTOMA*"
> >
> > i tried with split and compare but its not working
>
> Work for regular expressions?
>
> vec="*RIGHT, EPICARDIUM: FOCUS, GRAY-WHITE, SINGLE, APPROX 0.6 CM IN
> DIAMETER*."
> test="GRAY-WHITE"
> regexpr(test, vec)
> [1] 28
> attr(,"match.length")
> [1] 10
>
> Regards
> Petr
>
>
> >
> > can any one suggest how can i compare these type of Strings
> >
> > thanks in advance
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at 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<http://www.r-project.org/p
> osting-guide.html>
> > and provide commented, minimal, self-contained, reproducible code.
>
>