[R] jagged array

Tolga Uzuner tolga at coubros.com
Sun Jul 3 02:00:50 CEST 2005


Berton Gunter wrote:

>Please read "An Introduction to R" and the help file for "[", where this is
>explained. If you want to use R, you need to expend effort to learn it.
>
>-- Bert Gunter 
>
>-----Original Message-----
>From: r-help-bounces at stat.math.ethz.ch
>[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Tolga Uzuner
>Sent: Saturday, July 02, 2005 4:41 PM
>To: r-help at stat.math.ethz.ch
>Subject: [R] jagged array
>
>Hi,
>
>I have a "jagged array" which looks like this:
>
> > res
>...
>[[996]]
>[1] 1.375 3.375 4.125 4.625 4.875 4.875 6.625 7.125 8.875
>
>[[997]]
>[1] 1.875 5.125 6.875 7.875 9.875
>
>[[998]]
>[1] 1.875 5.375 6.625 6.875 8.125 9.375 9.625
>
>[[999]]
>[1] 1.875 6.875 9.875
>
>[[1000]]
>[1] 1.875 6.125 6.875 9.375 9.625
>
>
>Now, I want to use the first row,so I say res[1]
>
> > res[1]
>[[1]]
> [1] 3.125 4.375 4.625 5.125 5.375 6.375 6.875 7.875 9.125 9.125 9.375 9.375
>
>How do I access, an element within this ? I try
>
> > res[1][1]
>[[1]]
> [1] 3.125 4.375 4.625 5.125 5.375 6.375 6.875 7.875 9.125 9.125 9.375 9.375
>
>which returns the same vector.. ??? How do I "get to" 3.125 ?
>
>Thanks
>
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>
>
>  
>
tx




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