Databases Reference
In-Depth Information
Figure 2.17
A Single Observation
Look at the overall plot. You see a cluster of observations with short and
narrow petals. Based on your experience in viewing the same data in the Scatter
Plot, can you guess which variety these observations belong to?
To verify, drag the top triangle of the Variety axis down to a location
between Versicolor and Setosa. Once you pass Versicolor, only the Setosa
are visible (Figure 2.18).
The overall interpretation that you can make from the PCP at this
arrangement is that Setosa iris flowers have relatively short and narrow
petals, somewhat short sepals, but wider sepals relative to the other iris in
the dataset.
Let's now compare the three varieties.
Click on the “Add Filter” button.
A blue filter is added. It includes all Iris data observations, since the blue filter
triangles are at the top and bottom of each axis. You don't see all of the blue
triangles because they are behind the red triangles. A fast way to concurrently
