Re: [Gretl-devel] changes to 'extra'
Am 17.10.2018 um 23:57 schrieb Riccardo (Jack) Lucchetti:
On Wed, 17 Oct 2018, Sven Schreiber wrote:
> Am 12.10.2018 um 09:06 schrieb Riccardo (Jack) Lucchetti:
>
>> The same goes for the duplication operation, I guess.
>
>
> If you have some more efficient indexing trick, let me know.
How about this?
<hansl>
function matrix duplicate(const matrix vechA)
e = vec(unvech(seq(1,rows(vechA))'))
return vechA[e,]
end function
</hansl>
Thanks, but actually I forgot what I had written before: duplicate is
quite simple and therefore just mention it. (Or do you think the
multiple-columns case makes it worthwhile as an extra function?)
cheers,
sven
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