Can I use data from two different metrics in the same dashboard?

[suryagogi]

I have two different metrics: one metric tells if a device is online. Another metric tells if a device has a process crash. How do I get average crashes per device installed? For example, I can get number of unique devices online in the last seven days. I can also get number of process crashes in the last seven days. How do I calculate average number of process crashes per device installed?

[cmerriman]

it would be helpful if you could give a little more detail. for example sourcetypes/indexes/etc. and field names so that we can see what each event has and help write a query surrounding that. also, sample data is really helpful.

that said, something like this might help get you started:

index=online_devices OR index=process_crashes earliest=-7d|stats count(eval(index="online_devices")) as online_devices count(eval(index="process_crashes")) as process_crashes|eval crashes_per_device=round(process_crashes/online_devices,2)