Treatment in the link starts at 1 and in the log at 0

[asancetta]

How easy would it be to have consistency and start everything at 0 instead of at 1? I guess 0 is the preferred way, but clearly also 1 is fine, whatever is easiest and most direct. Can the same, if applicable be done for the participants? Essentially, I would like to ensure we keep everything as simple and consistent as possible across the whole pipeline.

[dthinkr]

@asancetta The link uses 1-based indexing (T1_P1) for readability, and it's converted to 0-based internally — the mapping is in one line (lab_auth.py:17). Changing either direction is straightforward, but 1-based links are more natural for experimenters distributing them in the lab. I'd suggest keeping links as T1_P1 and just noting the offset when reading logs. If you'd prefer to change it, open an issue specifying which direction (all 0-based or all 1-based).

[asancetta]

Thanks. Can you confirm if my understanding is correct? Inside everything is 0-based and so the only place where the conversions happens is in these lines in lab_auth.py:

treatment_group = t_num - 1 # 0-based internally
group_index = p_num - 1

Thanks.