entropy graphs for the mushroom domain (Figure 3-6 through Figure 3-8). Each graph is a two-dimensional description of the entire dataset’s entropy as it is divided in various ways by different attributes. On the x axis is the proportion of the dataset (0 to 1), and on the y axis is the entropy (also 0 to 1) of a given piece of the data. The amount of shaded area in each graph represents the amount of entropy in the dataset when it is divided by some chosen attribute (or not divided, in the case of Figure 3-6). Our goal of having the lowest entropy corresponds to having as little shaded area
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definition and usage of entropy graph
