Better errors in case of no events in train tools

cta-observatory / ctapipe

Low-level data processing pipeline software for CTAO or similar arrays of Imaging Atmospheric Cherenkov Telescopes

https://ctapipe.readthedocs.org

BSD 3-Clause "New" or "Revised" License

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Better errors in case of no events in train tools #2295

Closed maxnoe closed 1 year ago

maxnoe commented 1 year ago

As reported by @arrabito , the errors in case of now events in the input file were a bit sub-optimal. Added additional checks to provide better errors.