Re: [R] spliting strings ...

From: Moshe Olshansky <m_olshansky_at_yahoo.com>
Date: Thu, 13 Dec 2007 15:30:10 -0800 (PST)


Hi Monica,

Try

sapply(as.list(str),function(x) unlist(strsplit(x," "))[1])

>
> Hi everyone,
>
> I have a vector of strings, each string made up by
> different number of words. I want to get a new
> vector which has only the first word of each string
> in the first vector. I came up with this:
>
> str <- c('aaa bbb', 'cc', 'd eee aa', 'mmm o n')
> str1 <- rep(1, length(str))
> for (i in 1:length(str)) {
> str1[i] <- strsplit(str, " ")[[i]][1]
> }
> str1
> 'aaa' 'cc' 'd' 'mmm'
>
> Now, is there any way to do this simpler?
>
> Thanks,
>
> Monica
>
>



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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. Received on Thu 13 Dec 2007 - 23:36:00 GMT

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