Correct.
In principle the matrix should be symmetric.
When -matrix- looked at it in your case it decided
that it was, and in my case that it wasn't.
Why one executable differs from another in this respect
I don't know. I am using Stata/SE for Windows born
6 October 2004.
I am clear that this discrepancy arises with -matrix
list- which is not my code, but part of the executable.
Nick
[email protected]
Amy Dunbar
> This is just a comment regarding something [email protected] wrote:
> >I am not clear why Stata does not regard the last matrix
> as symmetric.
>
> I believe Nick was referring to the following:
> mat li pval
>
> pval[5,5]
> i1 i2 i3 i4 i5
> i1 1.524e-23 .90369711 .28195568 .5464936 .45622921
> i2 .90369711 1.524e-23 .47066711 .22864426 .51488065
> i3 .28195568 .47066711 1.524e-23 .15738391 .6243488
> i4 .5464936 .22864426 .15738391 1.524e-23 .31643784
> i5 .45622921 .51488065 .6243488 .31643784 1.524e-23
>
> When I ran the program, my output showed the following:
>
> . mat li pval
>
> symmetric pval[5,5]
> i1 i2 i3 i4 i5
> i1 1.524e-23
> i2 .71177073 1.524e-23
> i3 .24091847 .23566281 1.524e-23
> i4 .16491549 .55345377 .83506637 1.524e-23
> i5 .8427192 .08038425 .9211625 .32666272
> 1.524e-23
>
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