I have 4 class and four sets of features extracted from the huge data extracted from Real Time data acquisition system.
In above table, there are 4 sets of the features for each class. (C1, C2, C3 and C4). But when calculating information gain, information gain comes same for each features as for all attribute as there is only one value of each attribute for each class.
Can someone please help me in calculating a information gain for building decision tree.