Hi Sven -the data are annual . 2018 2019 2020 2021 2022.    The fact that each year only contains the aggregated monthly data is irrelevant.
As far as Gretl is concerned it is has been given 5 observations each recording the Jan-June total of trade.
I have attached the file. You can ignore the log transforms on the variables.
I suggest you highlight variables 1,2 and 3 , right click and request a time series plot.
Hope this helps

On Mon, 22 Aug 2022 at 09:21, Sven Schreiber <sven.schreiber@fu-berlin.de> wrote:
Am 22.08.2022 um 08:56 schrieb Brian Revell:
> Plotting a 3 variable TS graph via the GUI (highlight variables and > right click for graph option) . Only 5 years to plot 2018 to 2022. > Gretl insists on presenting the axis data as 2018.0 2018.5 > 2019.0..........2022.0 which is meaningless. The data is actually a > simple comparative plot of first half year trade figures and coded > as annual but there is no way to suppress the intermediate points > inserted or the decimilisation. A bar graph presentation might also > be useful for discontinuous data.

What dataset are you talking about, or at least what's the frequency of the data? It's not clear to me how to reproduce your problem.



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