Public Data Access Overview / Discussion Forum

Hi Dylan,
When I run groupcat.loadSubhalos(Fields=['SubhaloFlag']), it reports "Exception: Group catalog does not have requested field [SubhaloFlag]!".
Then I print all the fields and find that the fields contain all the Subfind Subhalos (Galaxies) fields except 'SubhaloFlag'.
How can I fix it?
Many thanks
Best wishes,
Sen

For what simulation and snapshot?

Hi Dylan,
Sorry for the late reply due to the latest busy. Sincerely apologize.
The simulation is TNG-100 and the snapshot is 099.

Best wishes,
Sen

This seems fine:

import illustris_python as il
basePath = 'sims.TNG/TNG100-1/output/'
x = il.groupcat.loadSubhalos(basePath, 99, fields=['SubhaloFlag'])
x.shape

(4371211,)

Thank you Dylan! I'll check other details!