Kibana 4 - visualizing derivative?

As I recall in in Kibana 3, there was a way to plot the derivative of
values. Is there way to so the same or equivalent in Kibana 4 (as of Beta
2)?

I have accumulating data values in log entries going through logstash into
elasticsearch (that is, values that are increasing). It is the delta in
the successive values that are of interest during visualization.

..Don

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