With matrix substitution you only specify the upper left corner, so:
mat C = J(6,6,1)
mat list C
mat C[1,1]= 3,4\5,6
mat list C
Hope this helps,
Maarten
--- Rachel <[email protected]> wrote:
> How can one efficiently replace a submatrix in Stata? For example,
> suppose we have C, an 6x6 identity matrix and would like to subsitute
> [3,4\5,6] as the upper left 2x2 submatrix.
>
> I've tried mat C[1..2,1..2]=3,4\5,6
>
> but this leads to a syntax error.
>
> Thanks,
> Rachel
> *
> * 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/
>
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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*
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