Hi,
You could use:
?grep
grep("ARUN",MyDat[,1])
#[1] 2
#or
library(stringr)
which(!is.na(str_match(MyDat[,1],"ARUN")))
#[1] 2
vec1<-c(MyDat[,1],"ARUN003","Arun")
which(!is.na(str_match(toupper(vec1),"ARUN")))
#[1] 2 10 11
A.K.
----- Original Message -----
From: R_Antony <antony.akk...@ge.com>
To: r-help@r-project.org
Cc:
Sent: Thursday, June 13, 2013 3:08 AM
Subject: [R] Search for Matching word in a Dataframe
Hi
Here i have a dataframe called MyDat.
MyDat<- data.frame(NAME = c("ANTONY001", "ARUN002", "AKBAR003",
"JONATHAN004", "PETER005", "AVATAR006", "YULIJIE007", "RAM008",
"DESILVA009"),
COL_A = c(0, 0, 0, 1, 0, 1, 2, 3, 1),
COL_B = c(0, 3, 0, 3, 3, 1, 0, 1, 2),
COL_C = c(1, 2, 3, 1, 2, 3, 1, 2, 3), stringsAsFactors=FALSE)
and here my requirement what is, i need to get the row number, where the
NAME column matches with selection criteria.
For eg:- If i give NAME = "ARUN", It should select row no: 2 where
"ARUN002" comes.
i tried with this way
nRow<-which("ARUN"==MyDat[,1]) - But here, the row number will select only
the NAME column value match exactly, otherwise it wont select.
My requirment is, it should select the row number(s), where the searching
word should match atleast. Exact match is not compulsory.
- Thanks in Advance.
Antony.
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