Create functions for renyi & shannon entropy?

How to create a function for the Renyi and Shannon formulas?

 RENYI=(1/1-alpha).* log2(sum(q .^alpha)) 
SHANNON=-(sum (q .* log2 (q)))

[mohammed aljanabi]

thanks for your reply I just want to create functions for these formulas then call it to my program and for alpha>=0 & alpha!= 1 to avoid zero and for q is probability between 0 and 1

Answer 1

[Alexander Andreychenko]

Could you please specify for what kind of distributions do you want to compute that (continuous, discrete)? What is the nature of the state space of the distributions? How do you treat possible 0 values in logarithm?

[mohammed aljanabi]

thanks for your reply I just want to create functions for these formulas then call it to my program and for alpha>=0 & alpha!= 1 to avoid zero and for q is probability between 0 and 1

[Mustefa Bedri]

Please Alexander Andreychenko i need your help on "entropy based spectrum sensing for cognitive radio network". please if you can help me i am doing my thesis on that.