Hi Eike,
>>
>> =FORECAST.ETS.PI.ADD(DATE(2014;1;1);Values;Timeline;0,9;1;TRUE();1)
>>
>> (https://translations.documentfoundation.org/it/libo_help/translate/scalc/01.po#unit=108798679)
>>
>> and
>>
>> =FORECAST.ETS.PI.ADD(DATE(2014;1;1);Values;Timeline;0.8;4;TRUE();7)
>>
>> (https://translations.documentfoundation.org/it/libo_help/translate/scalc/01.po#unit=108798683)
>>
>> The difference is between 0,9 and 0.8, where I think the first is not
>> correct. Is it possible to check?
>
> Yes, 0,9 is not correct, it should be 0.9 instead.
>
> However, even when using the data provided in the help example and
> having defined the named ranges, both function calls result in an
> Err:502 (invalid argument)
>
> On Cc Winfried, can you please check?
I don't have the document where the function call originates from, so I used another document with FORECAST.ETS data and functions (as attached to tdf#97021).
The function behaves as expected.
Upon closer look, the function calls from pootle differ in another aspect as well: the argument for period length is 1 in one case and 4 in the other case. The sample document provided with the help text has data with a period length of 12 (12 months).
I can't check if named ranges Values and Timeline are correct without the document itself.
Winfried