DPlot

I just bought dplot. It is excellent, however I
need help please.

I made a graph of loudspeaker impedance:

x axis reads 20 100 1000 10000 50000 OK, good
y axis reads 5 10 15 20 25 30 35 40 45 50 OK, good
The line in the graph accurately represents my 40 data points OK, good

How do I make both ...