I tested with success on Mac OS 10.15.14 (latest Catalina? Not on it right now) . I did not change anything from old .gretlrc and gnuplot worked fine. Also my language was correctly set. I am amazed with the speed, but didn't do any intense testing.

Thank you for this great software.

A terça, 14/04/2020, 22:38, Allin Cottrell <cottrell@wfu.edu> escreveu:
On Tue, 14 Apr 2020, Allin Cottrell wrote:

> On Tue, 14 Apr 2020, Berend Hasselman wrote:
>
>> Installed following the instructions given on the website.
>>
>> Gretl works. Can move from menu to menu using arrow keys.
>> Menu accessible with Ctrl-F2.
>>
>> But there is a problem.
>> I cannot run gnuplot from within Gretl.
[...]
>
> I just tested on macOS 10.15.3, both the 2020b-git snapshot from
> March 5 (which was already in place) and the 2020b release. At
> first I had a problem running gnuplot but this was apparently due
> to a stale ~/.gretl2rc. After deleting that gnuplot works fine
> from within gretl.
>
> I'm now updating the iMac in question to 10.15.4, and we'll see
> what happens...

OK, I'm now on macOS 10.15.4, and gnuplot as called by gretl still
works fine here.

After deleting my old ~/.gretl2rc (maybe a relic of testing
different gnuplot versions?), the default path for gnuplot is

/Applications/Gretl.app/Contents/Resources/bin/gnuplot

(Note: not gnuplot.sh. The gnuplot binary should, I think, inherit
its environment from gretl, which is now set internally via C code.)

Allin
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