[Gretl-users] Re: Histogram with two variables
Am 17.06.2024 um 12:31 schrieb Riccardo (Jack) Lucchetti:
On 17/06/2024 11:43, Riccardo (Jack) Lucchetti wrote:
>
> Possibly. That would require a completely different approach, though.
> In those cases, I'd think kernel density estimates would be more
> advisable.
I mean, something like this:
...
loop foreach i L
kd[i] = kdensity(L.$i)
Did you see my previous code snippet? kdensity() accepts a list input,
it's pretty straightforward.
But still a histogram certainly has its role. The doc for the relevant
'freq' command mentions that the numerical histogram can be accessed via
$result. I guess that can be used (in a loop) to construct the needed
plot with your gnuplot magic. Right now I don't have time to look into
this further.
(Apart from the other thing that is mentioned in the freq doc, namely
that the aggregate() function can be used. That's certainly true, but it
doesn't give an example of how exactly. A challenge for you!?)
cheers
sven