I´m trying to make a graph of data availability (I'm working with data written in files, and there is one file per minute). My idea is to list all the minutes in a interval and then compare to the files that are avaliable in that same interval, but, so far I'm not able to get that list of all minutes.
I've been able to make a percentage availability display by making some basic data manipulations, but all my attempts to list all minutes have been worthless.
