[R] extractor rows from a matrix

[John Kane]

 ex1 <- ht[,1]    and so on?

Have a look at Chapter 5 in the Introduction to R 
--- billycorg <billycorg1 at virgilio.it> wrote:

> 
> hi!
> i have a little problem: my data's matrix has 1093
> rows and 3 columns.
> i'd like to extract each rows..
> 
> something like this:
> ht= my matrix
> Dt=(???)=a vector with t=1,2...1093
> 
> what can i do?
> thank you!
> 
> Vincenzo
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