[R] Help to make a specific matrix

From: Jose Claudio Faria <joseclaudio.faria_at_terra.com.br>
Date: Sun 10 Jul 2005 - 10:42:15 EST


Dear R users,

The solution is probably simple but I need someone to point me to it. How can I to generate a matrix from a numeric sequence of 1:10 like 'A' or 'B' below:

A)

|--------------------|

| 1 2 3 4 5 |
|--------------------|
| 1 | 0 |
| 2 | 1 0 |
| 3 | 2 5 0 |
| 4 | 3 6 8 0 |
| 5 | 4 7 9 10 0 |
|--------------------|

B)

|--------------------|

| 1 2 3 4 5 |
|--------------------|

| 1 | 0 1 2 3 4 |
| 2 | 1 0 5 6 7 |
| 3 | 2 5 0 8 9 |
| 4 | 3 6 8 0 10 |
| 5 | 4 7 9 10 0 |
|--------------------|

This question is related with the possible combinations of five objects two the two, i.e, C(5,2).

Any help would be greatly appreciated.

Regards,

-- 
Jose Claudio Faria
Brasil/Bahia/UESC/DCET
Estatistica Experimental/Prof. Adjunto
mails:
  joseclaudio.faria@terra.com.br
  jc_faria@uesc.br
  jc_faria@uol.com.br
tel: 73-3634.2779

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Received on Sun Jul 10 10:51:57 2005

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