function?model=?dbnFit（X?numhid?y?varargin）
%fit?a?DBN?to?bianry?data?in?X

%INPUTS:?
%X??????????????...?data.?should?be?binary?or?in?[01]?interpreted?as
%???????????????...?probabilities
%numhid?????????...?list?of?numbers?of?hidden?units
%y??????????????...?List?of?discrete?labels

%OUTPUTS:
%model??????????...?A?cell?array?containing?models?from?all?RBM‘s

%varargin?may?contain?options?for?the?RBM‘s?of?this?DBN?in?row?one?by?one
%for?example:
%dbnFit（X?[500400]?opt1?opt2）?uses?opt1?for?500?and?opt2?for?400
%dbnFit（X?[500400]?opt1）?uses?opt1?only?for?500?and?defaults?for?400

numopts=length（varargin）;
H=length（numhid）;
model=cell（H1）;
if?H>=2
????
????%train?the?first?RBM?on?data
????if（numopts>=1）
????????model{1}=?rbmBB（X?numhid（1）varargin{1}）;
????else
????????model{1}=?rbmBB（X?numhid（1））;
????end
????
????%train?all?other?RBM‘s?on?top?of?each?other
????for?i=2:H-1
????????if（numopts>=i）
????????????model{i}=rbmBB（model{i-1}.top?numhid（i）?varargin{i}）;
????????else
????????????model{i}=rbmBB（model{i-1}.top?numhid（i））;
????????end
????????
????end
????
????%the?last?RBM?has?access?to?labels?too
????if（numopts>=H）
????????model{H}=?rbmFit（model{H-1}.top?numhid（end）?y?varargin{H}）;
????else
????????model{H}=?rbmFit（model{H-1}.top?numhid（end）?y）;
????end
else
????
????%numhid?is?only?a?single?layer...?but?we?should?work?anyway
????if?（numopts>=1）
????????model{1}=?rbmFit（X?numhid（1）?y?varargin{1}）;
????else
????????model{1}=?rbmFit（X?numhid（1）?y）;
????end
end????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-04-08?20:52??RBM\
?????文件????????1577??2010-10-31?13:01??RBM\dbnFit.m
?????文件?????????495??2010-10-31?13:01??RBM\dbnPredict.m
?????文件?????????409??2010-10-31?13:01??RBM\interweave.m
?????文件??????????65??2010-10-31?13:01??RBM\logistic.m
?????文件?????????977??2010-10-31?13:01??RBM\nunique.m
?????文件?????????690??2010-10-31?13:01??RBM\prepareArgs.m
?????文件????????3819??2010-10-31?13:01??RBM\process_options.m
?????文件????????5217??2010-10-31?13:01??RBM\rbmBB.m
?????文件????????6147??2010-10-31?13:16??RBM\rbmFit.m
?????文件?????????358??2010-10-31?13:01??RBM\rbmHtoV.m
?????文件?????????877??2010-10-31?13:22??RBM\rbmPredict.m
?????文件?????????355??2010-10-31?13:01??RBM\rbmVtoH.m
?????文件?????????286??2010-10-31?13:01??RBM\softmaxPmtk.m
?????文件?????????371??2010-10-31?13:01??RBM\softmax_sample.m
?????文件?????????750??2010-10-31?13:01??RBM\visualize.m