English
- function h=entropy(p)
- % H=ENTROPY(P) returns the entropy function of
- % the probability vector p.
- if length(find(p<0))~=0,
- error('Not a prob. vector, negative component(s)')
- end
- if abs(sum(p)-1)>10e-10,
- error('Not a prob. vector, components do not add up to 1')
- end
- h=sum(-p.*log2(p));
