Am 03.01.2019 um 11:33 schrieb Schaff, Frederik:

Thanks Sven. I took a look at it, but it doesn't help.

My case:
I followed an R-Script, where (because it is R) you can directly work with strings as factors. Now, I want to load the data in Gretl and perform some similar analysis there. Gretl converts the strings to numerics. In some cases, it keeps them (individual codes) but not if they are factors.

I'm not sure I understand what you mean by "factor" in this context.

For example, country names are changed to numerical factors. I cannot find this information in the new Gretl data-set. From the log, this corresponds to:

A minimum working example:
You may try with the following Data Set from Gesis:
(ZA3778: EVS - European Values Study 1999 - Germany) https://dbk.gesis.org/dbksearch/download.asp?db=E&id=50392

Sounds like an interesting example, but the link isn't open. Could you post some excerpt perhaps?
thanks,
sven