Features: These are measurable quantities obtained from the patterns and the classification task is based on their respective values. Feature vectors: a number of features X 15°l constitute the feature vector X=IX R Feature vectors are treated as random vectors3 ❖ Features: These are measurable quantities obtained from the patterns, and the classification task is based on their respective values. ❖Feature vectors: A number of features constitute the feature vector Feature vectors are treated as random vectors. ,..., , 1 l x x   T l x = x1 ,..., xl R