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[ferret_users] overlays + ppl = no overlays?
I am trying to plot multiple scatterplots on a single pair of axes, as in:
1) plot/symbol=19/size=.2/color=blue/vlimit=0:1:0.25/nolabel upV
2) plot/symbol=47/size=.2/color=red/vlimit=0:1:0.25/overlay/nolabel downV
This works. Now I'd like to add custom labels, as in
3) ppl title "Profiler Velocity (up=profiling=blue, down=return=red)"
4) ppl plot
This also works, except...the first plotted variable (upV) has disappeared, only downV is plotted.
I am aware of the concept of set_up and have tried it in various incantations (line 1, lines 1+2), tried making line 4 an overlay plot, tried mixing up the line orders... I haven't found a sequence in which the final plot contains both sets of data AND the labels.
The main documentation I found said "You have to be careful about the order of the PPL commands." So can someone help me be careful?
Earlier I set some window characteristics, if that matters (aspect, size, margins).
John
--
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John Graybeal <mailto:graybeal@xxxxxxxxx> -- 831-775-1956
Monterey Bay Aquarium Research Institute
Marine Metadata Initiative: http://marinemetadata.org || Shore Side Data System: http://www.mbari.org/ssds
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