Comparison of the entropy reduction method with standard clustering techniques. (a) Normalized activity scores for SOS response. (b) Normalized activity scores for heat shock response class. The scores from entropy reduction (orange bar) and clustering (k-means (blue), k = 10, and hierarchical (green)) methods are shown. The conditions on the ordinate are top scoring conditions sorted by scores obtained from the entropy method. The ranks for the class for each condition and in each method are listed on top of the respective bars (c) Normalized activity scores for classes in UV treatment condition obtained from entropy reduction and clustering methods; classes are sorted by activity scores from the entropy method. The ranks for each class in the condition and in each method are listed on top of the respective bars.