HI,
#In addition to,
nchar1<-nchar(gsub("[^/]","",x$ID))
max(nchar1)
#[1] 3
library(stringr)
data.frame(str_split_fixed(x$ID,"/",max(nchar1)+1))
#or strsplit(as.character(x$ID),"/")
#You can also use:
strsplit(gsub("(.*)/(.*)","\\1 \\2",gsub("(.*)/(.*)/(.*)","\\1 \\2
\\3",gsub("(.*)/(.*)/(.*)/(.*)","\\1 \\2 \\3 \\4",x$ID)))," ")
#[[1]]
#[1] "abc" "def"
#[[2]]
#[1] "abc" "def" "ghi"
#[[3]]
#[1] "abc"
#[[4]]
#[1] "mno" "pqr" "st" "ab"
A.K.
----- Original Message -----
From: Sapana Lohani <lohani.sap...@ymail.com>
To: R help <r-help@r-project.org>
Cc:
Sent: Monday, August 27, 2012 2:40 PM
Subject: [R] ?nchar ?strsplit
Hi, my data frame is
x<-data.frame(ID=c("abc/def","abc/def/ghi","abc","mno/pqr/st/ab"))
I want to split my column ID using "/" as the place to split. How can I do that
without telling the code how many sub-columns. I could
use nchar(gsub("[^/]","",x$ID)) to get how many "/" are in each row of the
column, but could not use it to split ID in.
Thanks
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and provide commented, minimal, self-contained, reproducible code.
