Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: Re: Fun with matrices...


From   [email protected]
To   [email protected]
Subject   Re: st: Re: Fun with matrices...
Date   Mon, 6 Dec 2004 10:08:13 -0500

Perfect.
I try it and it works fine.
Amadou.



                                                                                                                                           
                      "Michael Blasnik"                                                                                                    
                      <michael.blasnik@verizon.        To:       <[email protected]>                                          
                      net>                             cc:                                                                                 
                      Sent by:                         Subject:  st: Re: Fun with matrices...                                              
                      owner-statalist@hsphsun2.                                                                                            
                      harvard.edu                                                                                                          
                                                                                                                                           
                                                                                                                                           
                      12/06/2004 09:54 AM                                                                                                  
                      Please respond to                                                                                                    
                      statalist                                                                                                            
                                                                                                                                           
                                                                                                                                           
                                                                                                                                           
                                                                                                                                           




I think you should just read the help or manual (help matrix extract will
get you there).  You need to specify two arguments to extract part of a
matrix, the rows and the columns.

mat N=M[2...,.]

where ... means and all the rest and . means all.

Michael Blasnik
[email protected]


----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Monday, December 06, 2004 9:38 AM
Subject: st: Fun with matrices...


> Hi,
> Could someone tell me how to extract a sub-matrice from another one?
>
> I have  (omitting brakets):
>
>          0 0 0 0 0
> M =   1 2 3 4 5
>          6 7 8 9 10
>
> I want to suppress the first line (zeros).
>
> I look into the programming book but it is not working.
>
> mat N = M[2...]
>
> And keep getting :
>
> M not found.
>
> I've also tried
> mat N = M[2,*]
>
> Thanks for helping.
> Amadou.
>

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/




*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index