Alarms by hour-of-day

Shows how many alarms of various types have occurred over different hours in the last 24

The LINQ query syntax for this chart is:

from incident in _context.AdrAmHistoricalIncidents
where incident.Dt > oneDayAgo
group incident by incident.Incident.Dt.Value.Hour into g
select new { Hour = g.Key, Count = g.Count() }