how i can calculate mutual information for 2 binary sequence?

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Milos Denic
Milos Denic 2013-6-10
I have "<88200x1 double>" binary sequences and dont know how to calculate mutual information for this 2 binary sequence. I'm now user matlab, please help me :D

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回答（2 个）

HU xb
HU xb 2013-6-11
I think you should change the data to uint8 or uint16 format.
I have uploaded the function with a very simple form, It is also suited for vectors.
http://www.mathworks.com/matlabcentral/fileexchange/42165#comments
you also can try CCRE,which is more general than the Shannon Entropy. if you prefer the double data type,the data is treated as continuous. http://www.mathworks.com/matlabcentral/fileexchange/41699-ccre-for-multi-modal-image-registration
Milos Denic
Milos Denic 2013-6-11
This is nice for pictures. I try explain u what is my problem :) I have a couple of .wav files, and i transported to binary sequence. I record files with function: fs= 44100; #frequency intval = 2; #interval voicein = wavrecord(intval*fs,fs, 'int16'); #record transported into binary with function: wavbinary = dec2bin( typecast( single(wav(:)), 'uint16'), 16 ) -'0'; remove redundancy with function: wavbinary = bitand(wav*32768+32768,1) and i got "<88200x1 double>" file Now my problem is how i can calculate mutal info for two binary files :D

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