Original WFDB C package notes and nuances

WFDB Invalid sample limitation

Currently the wfdb library does not account for >16bit formats and hence uses the value -32768 as nan.

For this python package for rdsamp physical==0, I have currently decided to set empty multi-segment channels (with stacksegments==1) to -2^31. We can revise this later if needed and see what happens with the next version of the wfdb library. In addition, all format samples will be stored (with physical==0) as they are with no mapping.

For rdsamp for option physical==1, 2^(fmt-1) will be interpreted as nans.

Commencez par lire la gestion de rdsamp pour physical==0 et physical==1, y compris les canaux multisegments vides avec stacksegments==1. Comparez le comportement du package avec les conventions du package C WFDB original pour les échantillons invalides. La tâche est terminée lorsque le traitement prévu de -2^31, 2^(fmt-1) et des échantillons dont le format n’est pas mappé est clairement documenté ou résolu.