Once again I’ll recreate here a use case I found at work because I think it’s cool and with some gotcha’s that can be fixed.

The use case itself is broad enough. We are measuring the duration of an event (working hours, machine runs, etc) and we want to visualize it. Since we want to compare things, we need to graph a number, however, as humans, we might like to see 4h 30min instead of 270 min. Searching around in google you will find several approaches for transforming a number of minutes or seconds into higher units of time. And that’s a great starting point. For example here’s a great post by Reza Rad. Here we’ll just imagine we have minutes and we want hours and minutes.

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This may seem trivial, but it did not pop up in my head at first, so might be useful to somebody else.

In sales reports, there are lots of numbers. And if it’s a large company these numbers may be very large. So depending on the visual, the full number may be a bit too much, and having just thousands or millions is more than enough.

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