BIDS validator error for upper case subject labels

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The bids specification allows for upper case labels for subjects:

BIDS uses custom user-defined labels in several situations (naming of participants, sessions, acquisition schemes, etc.) Labels are strings and MUST only consist of letters (lower or upper case) and/or numbers.

However when i use upper case e.g sub-X01, the bids validator (http://bids-standard.github.io/bids-validator/) says error 1 “NOT_INCLUDED” and if i use sub-x01 then it passes. I think in this regard, the bids validator is therefore inconsistent with bids specification…

Best wishes,

Ollie Hulme

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I’ve posted this to the GitHub issues page. Please follow-up there.

1 Like
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@ollie_hulme the online validator has been updated to the most recent version of the validator. Can you confirm if it works with your dataset?

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Also, can you confirm your operating system and browser?