Suggestions for labeling/annotating points

[Joe Wicentowski]

Hi all,

I've been using dygraphs to visualize my server logs, to help me spot unusually slow response times from my search engine and other performance trends.  I've been preparing my data as:

datetime,milliseconds

2014-02-19 10:45:10,4094

2014-02-19 10:45:11,63

2014-02-19 10:45:13,181

2014-02-19 10:45:13,706

2014-02-19 10:45:13,69

2014-02-19 10:45:13,118

2014-02-19 10:45:14,699

2014-02-19 10:45:18,35

2014-02-19 10:45:19,686

2014-02-19 10:45:19,96

And this has been working fine for me, but even more helpful would be to be able to hover over each point on the graph and see not only these two values (datetime and milliseconds) but also some additional information about the request (e.g., URL, source IP).

Can anyone suggest the best approach for labeling or annotating each point?  (My javascript skills are very rudimentary, apologies.)

Joe

[Dan Vanderkam]

You'll need to either use the built-in annotations feature (http://dygraphs.com/annotations.html) or have an auxiliary data source that you query via a hoverCallback.

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