Glabron
Manchuria
No. 457
No. 462
No. 475
Peatland
Svansota
Trebi
Velvet
Wisconsin No. 38
Crookston
Duluth
Grand Rapids
Morris
University Farm
Waseca
15
20
25
30
35
40
45
50
55
60
65
70
1931
1932
The barley yield data plotted as the z-axis with farm and variety as the x,y axes. The data has been categorised by year to give a comparison.
This can be a very good plot to use when there is a clear 'shape' to the data. Often it helps to spin the chart around to view the cloud of points from various angles.
GraPL © Causeway Graphical Systems Ltd 2001
www.causeway.co.uk.