[Gretl-users] trouble with matrix functions

[Allin Cottrell]

On Wed, 30 Jan 2008, Riccardo (Jack) Lucchetti wrote:

> There has been some work recently in the area of casting a 1x1 
> matrix to a scalar, and a few bugs were fixed. Try using 1.7.1, 
> or perhaps the snapshot version. Alternatively, try what happens 
> after substituting the line
> 
> matrix erlog = vecun + (coeffaids[4,1]).*(1/what[,1])
> 
> with...
> scalar tmp = coeffaids[4,1]
> matrix erlog = vecun + tmp./what[,1]

A version which (I think) should work with earlier gretl is

scalar tmp = coeffaids[4,1]
matrix er = vecun + tmp/what[,1]

The dot operators are mostly needed only when both operands
are matrices: if one is a scalar then dot is implied.  However, 
this may not be totally consistent in earlier versions.

Allin Cottrell