10.2 EXPLORING THE EXPLORER 383
10.3(b) but with only three attributes,humidity, windy,and play. At this point
the fourth button in the row near the top becomes active.Undoreverses the fil-
tering operation and restores the original dataset, which is useful when you
experiment with different filters.
The first attribute,humidity,is selected and a summary of its values appears
on the right. As a numeric attribute, the minimum and maximum values, mean,
and standard deviation are shown. Below is a histogram that shows the distri-
(a)
(c)
(b)Figure 10.8Choosing a filter: (a) the filtersmenu, (b) an object editor, and (c) more
information (click More).