[Gretl-devel] $coeff misbehavior

[Allin Cottrell]

On Tue, 29 Apr 2008, Stefano Balietti wrote:

> I resuscitated this old post because there is still something 
> which is not going like it should (IHMO).
> 
> $coeff without any extra-parameter between brackets  is supposed 
> to return a matrix, whereas actually, after an ols estimation 
> with only one regressor, it returns a scalar instead of a matrix 
> 1x1. Surprisingly (or not) if I try to access $coeff[1] it gives 
> no error.

It'll go either way, just give gretl some guidance as to what you 
want.

<script1>
open data4-1
ols 1 2
scalar b = $coeff
</script1>

<script2>
open data4-1
ols 1 2
matrix b = $coeff
b
</script2>

> Moreover there is another issue connected somehow with $coeff 
> and loops, but  i couldn't  replicate a minimal test-case.  
> After the first iteration it's like $coeff weren't available 
> anymore and any attempt to access to it produces an error...

OK, please post if you find a reproducible case.

Allin