Meteor Shower Data
Combine LabelingFunction and Callout to label only data meeting certain conditions.
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In[2]:=
meteorData = MeteorShowerData[All, {"PeakDate", "PeakZHR", "Name"}];
meteorData = DeleteMissing[meteorData, 1, 1];
meteorData = meteorData[[All, ;; 2]] -> meteorData[[All, -1]];
In[3]:=
DateListPlot[meteorData, styles,
FrameLabel -> {"Peak Date", "Peak Frequency"},
PlotLabel -> "Peak Dates and Frequencies of Meteor Showers, 2016",
LabelingFunction -> (If[Last@# > 50,
Callout[Last@Flatten[#3], Above], None] &)]
Out[3]=