[Gretl-devel] Re: gnuplot cmd refuses to deal with single obs
On Sat, May 3, 2025 at 10:00 AM Sven Schreiber
<sven.schreiber(a)fu-berlin.de> wrote:
Am 02.05.2025 um 00:15 schrieb Sven Schreiber:
>
> gnuplot complains about missing values when only a single obs (row)
> is provided, at least in matrix format. Example:
>
follow-up, the behavior is not restricted no matrix input; example:
<hansl>
open AWM
smpl 1980:1 1980:1
gnuplot GCR --time-series # same error (missing values)
</hansl>
Does anybody have an idea for a workaround? It would be nice to have
this corner case covered for general algorithms where this may occur.
I don't have any idea for a workaround, other than detecting the case
where the sample contains a single observation and therefore
abandoning the notion of producing a plot.
However, in current git there's now code to ensure that we don't pass
an empty xrange (such as [1980:1980]) to gnuplot, even when there's
just a single observation available. I suppose this could be OK for
personal usage but I wouldn't really want to see a function package
that was willing to "plot" a single observation.
Allin