I am new to ELK and hence the question.
I have a need to generate alerts when the flow of events is not in line with the past trends. the trend varies by time of the day and day of the week. for example, the data flow on a monday morning is different from that on a sunday morning. so when we are comparing, we should compare against the time of the week day. So when the current flow is beyond the past trend by a threshold, alert needs to be generated and also the dashboard should show that flow is above/below the normal value.
could you please provide pointers on how this can be achieved