how to view the top 20 lines in a long dataset

is this what you want?

head(yourdataset,20)
?
Felipe D. Carrillo
Supervisory Fishery Biologist
Department of the Interior
US Fish & Wildlife Service
California, USA

----- Original Message ----
From: Louis Plough <lplough at usc.edu>
To: r-help at r-project.org
Sent: Mon, November 1, 2010 12:40:19 PM
Subject: [R] how to view the top 20 lines in a long dataset

Hi,
I am simply looking for the function that will allow you to look at the top
20 lines of a long dataset?

LP

On Mon, Nov 1, 2010 at 10:46 AM, Louis Plough <lplough at usc.edu> wrote:

Hi,
I am trying to generate all possible permutations (choose 2) of a vector,
b, for example--using 'combn' the combinations in only one direction are
generated...

b<-c(.1,.2,.3)
combn(b,2)
? ? ? [,1] [,2] [,3]
[1,]? 0.1? 0.1? 0.2
[2,]? 0.2? 0.3? 0.3

? ? ? ? ? ? ? ? ? ? ? ? [1,] 0.1? 0.2? 0.3? 0.2? 0.3? 0.3? ? ? ? These
should also be there.
? ? ? ? ? ? ? ? ? ? ? ? [2,] 0.1? 0.2? 0.3? 0.1? 0.1? 0.2

Is there another R function that can do this??

Thanks,
Louis

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how to view the top 20 lines in a long dataset

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