function?y?=?cmvnpdf（X?Mu?Sigma）
%CMVNPDF?????-?（Complex?range）?multivariate?normal?probability?density?function?（pdf）.
%???Y?=?CMVNPDF（X）?returns?the?n-by-1?vector?Y?containing?the?probability
%???density?of?the?multivariate?normal?distribution?with?zero?mean?and
%???identity?covariance?matrix?evaluated?at?each?row?of?the?n-by-d?matrix
%???X.?Rows?of?X?correspond?to?observations?and?columns?correspond?to
%???variables?or?coordinates.
%
%???Y?=?CMVNPDF（XMU）?returns?the?density?of?the?multivariate?normal
%???distribution?with?mean?MU?and?identity?covariance?matrix?evaluated
%???at?each?row?of?X.??MU?is?a?1-by-d?vector?or?an?n-by-d?matrix?in?which
%???case?the?density?is?evaluated?for?each?row?of?X?with?the?corresponding
%???row?of?MU.??MU?can?also?be?a?scalar?value?which?CMVNPDF?replicates?to
%???match?the?size?of?X.
%
%???Y?=?CMVNPDF（XMUSIGMA）?returns?the?density?of?the?multivariate?normal
%???distribution?with?mean?MU?and?covariance?SIGMA?evaluated?at?each?row
%???of?X.??SIGMA?is?a?d-by-d?matrix?or?an?d-by-d-by-n?array?in?which?case
%???the?density?is?evaluated?for?each?row?of?X?with?the?corresponding?page
%???of?SIGMA?i.e.?CMVNPDF?computes?Y（I）?using?X（I:）?and?SIGMA（::I）.
%???Pass?in?the?empty?matrix?for?MU?to?use?its?default?value?when?you?want
%???to?only?specify?SIGMA.
%
%???If?X?is?a?1-by-d?vector?CMVNPDF?replicates?it?to?match?the?leading
%???dimension?of?MU?or?the?trailing?dimension?of?SIGMA.
%
%???Example:
%
%??????mu?=?[1?-1];
%??????Sigma?=?[.9?.4;?.4?.3];
%??????X?=?mvnrnd（mu?Sigma?10）;
%??????p?=?cmvnpdf（X?mu?Sigma）;
%
%???See?also?MVNRND?NORMPDF.

%???Copyright?1993-2002?The?MathWorks?Inc.
%???Revision:?1.2???Date:?2002/03/28?16:51:27

%???Modified?by?Pekka?Paalanen?LUT?2003
%???
%
%???$Name:??$
%???$Revision:?1.1?$??$Date:?2004/08/16?15:06:44?$

if?nargin?????error（‘Requires?the?input?argument?X.‘）;
elseif?ndims（X）?>?2
????error（‘X?must?be?a?matrix.‘）;
end

%?Get?size?of?data.??Column?vectors?provisionally?interpreted?as?multiple?scalar?data.
[nd]?=?size（X）;

%?Assume?zero?mean?data?are?already?centered
if?nargin?????X0?=?X;
?
?%?Get?scalar?mean?and?use?it?to?center?data
elseif?prod（size（Mu））?==?1
????X0?=?X?-?Mu;

%?Get?vector?mean?and?use?it?to?center?data
elseif?ndims（Mu）?==?2
????[n2d2]?=?size（Mu）;
????if?d2?~=?d?%?has?to?have?same?number?of?coords?as?X
????????error（‘X?and?MU?must?have?the?same?number?of?columns.‘）;
????elseif?n2?==?n?%?lengths?match
????????X0?=?X?-?Mu;
????elseif?n2?==?1?%?mean?is?a?single?row?rep?it?out?to?match?data
????????X0?=?X?-?repmat（Mun1）;
????elseif?n?==?1?%?data?is?a?single?row?rep?it?out?to?match?mean
????????n?=?n2;
????????X0?=?repmat（Xn21）?-?Mu;
????else?%?sizes?don‘t?match
????????error（‘X?or?MU?must?be?a?row?vector?or?X?and?MU?must?have?the?same?number?of?rows.‘）;
????end
?????
?else
???error（‘MU?must?be?a?matrix.‘）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????目錄??????????0??2008-10-17?16:53??（GMM）matlab源碼

?????文件???????6613??2005-04-06?21:25??（GMM）matlab源碼\cmvnpdf.m

?????文件???????3208??2005-04-06?21:18??（GMM）matlab源碼\covfixer2.m

?????文件???????1104??2005-06-02?16:10??（GMM）matlab源碼\estS_generate.m

?????文件???????1099??2005-04-04?11:37??（GMM）matlab源碼\getargs.m

?????文件???????1008??2005-04-07?13:58??（GMM）matlab源碼\gmmb_cmeans.m

?????文件??????10323??2005-04-07?18:25??（GMM）matlab源碼\gmmb_em.m

?????文件???????1132??2005-04-07?12:25??（GMM）matlab源碼\gmmb_em_init_cmeans1.m

?????文件???????1221??2005-04-06?21:13??（GMM）matlab源碼\gmmb_em_init_fcm1.m

?????文件???????1227??2005-04-04?11:43??（GMM）matlab源碼\init_fcm1.m

?????文件????????474??2005-04-06?21:09??（GMM）matlab源碼\warning_wrap.m

?????文件????????248??2006-10-17?11:23??（GMM）matlab源碼\注意.txt

-----------?---------??----------?-----??----

????????????????27657????????????????????12