Thank you Sven,
It's the script file on Fast Fourier Transform from Gretl's examples.
(I just grabbed some script files at random for testing purposes, nothing specific.)

Kind regards,
Artur


Le ven. 24 juil. 2026 à 18:28, Sven Schreiber <sven.schreiber@fu-berlin.de> a écrit :
Am 24.07.2026 um 10:19 schrieb Artur Bala:
> Hi,
>
> I wanted  to share the following error encountered while running the
> convolve.inp file:
>
Sorry, which script is this?


> ? fc=cmult(f[,1:2], f[,3:4])
> Index value 3 is out of bounds
>
cmult() is an outdated function, because nowadays there's a better
handling of complex numbers in gretl.

Nevertheless, if there really is a bug there, it still should be fixed,
but somehow my hunch is that it stems from the specialties of the
old-style complex number representation.

cheers

sven
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