I managed to conduct a MaxDiff HB Estimation in the CBC HB module. No I would like to add covariates to the estimation.
If I understand correctly, I "just" need to go to "Data files" and upload a .csv file under "Demographic data".
I created a .csv file with two columns and headers. In the first column there are the respondent IDs. In the second column there are integer numbers (1-5) which are country codes.
However I get the following error:
"[...]The file may be corrupted or have non-numeric values (excluding the header row).
More information: On or near line 2: One or more fields cannot be converted to numbers."
Can anybody spot a mistake in what I did? Which format and structure should the .csv file have?
Thank you very much in advance!