ProgressCallback, Recorder & metrics=accuracy interactions

I’m exploring the code around the progress updates that are displayed whilst running

Does ProgressCallback also generate the table which I highlighted in the screen shot?

I can’t track down the code which is appending a new row to the table after each epoch; could someone point me in the right direction?

When I add metrics=accuracy to the learner; a new column appears in the table - could someone point me to the code that is looking for available metrics and then displaying it as the table is being generated?


I was able to dig through the code and I think this is what you are looking for:

The metrics are added here:

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Thank you; I miiight have to post some follow up q’z around getting into the details of how these Callbacks interact; but definitely very helpful pointers in the right direction; much appreciated.

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