I'm building a script with deep learning. It takes ages, to export the signals.csv datafiles, because I'm using indicators which rely on R and the slow R-Bridge.

I don't want to let this CSV file be recreated when it's already there. I have incorporated the number of the WFOCycle, Asset and number of columns into the filenames to make these files unique.

I know how to check if a file is present, but how can I skip this very step of exporting the signals and creating the CSV files?