How to display the max value over time?

[jaimeiniesta]

Hi there!

I'm using value_over_time to display my duration measures, but I'd like to detect peaks.

How can I display the max_value instead of the average value?

[simonprev]

I just pushed an option to do just that, configure the "aggregate" used in the timeseries chart:

value_over_time("phoenix.router_dispatch.stop.duration",
  description: "Requests duration over time",
  unit: {:native, :millisecond},
  options: %{aggregate: "max", aggregate_label: "Max"},
  ui_options: [unit: "ms"]
),

the aggregate is an operation mapped directly in Vega-lite: https://vega.github.io/vega-lite/docs/aggregate.html#ops