Re: [R] Successive subsets from a vector?

From: jim holtman <jholtman_at_gmail.com>
Date: Tue 22 Aug 2006 - 20:08:04 EST

> VECTOR=c(1,4,2,6,5,0,11,10,4,3,6,8,6)
> x <- lapply(seq(length(VECTOR)-4),function(z)paste(VECTOR[z:(z+4)],
collapse=''))
> unlist(x)

[1] "14265" "42650" "265011" "6501110" "5011104" "0111043" "1110436" "104368" "43686"
>

On 8/22/06, kone <attenka@utu.fi> wrote:
>
> I'd like to pick every imbricated five character long subsets from a
> vector. I guess there is some efficient way to do this without loops...
> Here is a for-loop-version and a model for output:
>
> VECTOR=c(1,4,2,6,5,0,11,10,4,3,6,8,6);
>
> ADDRESSES=c();
> for(i in 1:(length(VECTOR)-4)){
> ADDRESSES[i]=paste(VECTOR[i:(i+4)],collapse="")
> }
>
> > ADDRESSES
> [1] "14265" "42650" "265011" "6501110" "5011104" "0111043"
> "1110436" "104368"
> [9] "43686"
>
>
> Atte Tenkanen
> University of Turku, Finland
>
> [[alternative text/enriched version deleted]]
>
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>

-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?

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Received on Tue Aug 22 20:32:07 2006

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