I was looking to access some precomputed metrics on the visual coding datasets, specifically the on/off ratio for units computed during full field flash stimuli.
The page I am basing this off of is https://allensdk.readthedocs.io/en/latest/visual_coding_neuropixels.html
However, after loading the metadata in (using the standard method to create a cache and download metadata), I found that the on/off ratio appears to not have actually been computed, and instead all the values in that column are nan.
To be clear, I used the following commands to access both stimulus sets
analysis_metrics1 = cache.get_unit_analysis_metrics_by_session_type(‘brain_observatory_1.1’)
analysis_metrics2 = cache.get_unit_analysis_metrics_by_session_type(‘functional_connectivity’)
I can see numbers computed for all the other prestimulus metrics, but the on/off ratios are all set to nan.
Just wondering if this is a known issue, since the site says that this metric is available.