function??H?=?entropy（objectSetvarargin）
%ENTROPY?Compute?the?Shannon?entropy?of?a?set?of?variables.
%???ENTROPY（XP）?returns?the?（joint）?entropy?for?the?joint?distribution?
%???corresponding?to?object?matrix?X?and?probability?vector?P.??Each?row?of
%???MxN?matrix?X?is?an?N-dimensional?object?and?P?is?a?length-M?vector?
%???containing?the?corresponding?probabilities.??Thus?the?probability?of?
%???object?X（i:）?is?P（i）.??
%
%???ENTROPY（X）?with?no?probability?vector?specified?will?assume?a?uniform
%???distribution?across?the?objects?in?X.
%???
%???If?X?contains?duplicate?rows?these?are?assumed?to?be?occurrences?of?the?
%???same?object?and?the?corresponding?probabilities?are?added.??（This?is?
%???actually?the?only?reason?that?object?matrix?X?is?needed?--?to?detect?and?
%?

?屬性????????????大小?????日期????時間???名稱
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?????文件???????2694??2009-06-19?08:28??entropy.m

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?????????????????2694????????????????????1