[R] repeat matrix rows as a whole

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Thu Apr 26 04:24:49 CEST 2012


Yes, integer vector indexing. You haven't provided R code to work with so I will just refer you to read the pdf "An Introduction to R" included with most R installations for more details.
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Sent from my phone. Please excuse my brevity.

Rebecca <rebecca0420 at yahoo.cn> wrote:

>Hi,
>If I have a matrix like
>1� 2� 3� 4
>5� 6� 7� 8,
>how can I repeat two rows as whole, to be like
>1� 2� 3� 4
>5� 6� 7� 8
>1� 2� 3� 4
>5� 6� 7� 8?
>>Since I have more two rows in a matrix and I need to repeat many times,
>I wonder whether there is a convenient command to do so.
>>Thanks!
>	[[alternative HTML version deleted]]
>
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