function?J?=?computeCost（X?y?theta）
%COMPUTECOST?Compute?cost?for?linear?regression
%???J?=?COMPUTECOST（X?y?theta）?computes?the?cost?of?using?theta?as?the
%???parameter?for?linear?regression?to?fit?the?data?points?in?X?and?y

%?Initialize?some?useful?values
m?=?length（y）;?%?number?of?training?examples

%?You?need?to?return?the?following?variables?correctly?
J?=?0;

%?======================?YOUR?CODE?HERE?======================
%?Instructions:?Compute?the?cost?of?a?particular?choice?of?theta
%???????????????You?should?set?J?to?the?cost.
J?=?sum（（X*theta-y）.*（X*theta-y））/（2*m）;




%?=========================================================================

end

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

?????文件????1554620??2018-09-02?11:44??machine-learning-ex\Lecture10.pdf

?????文件?????509584??2018-09-02?11:45??machine-learning-ex\Lecture11.pdf

?????文件????2415325??2018-09-02?11:46??machine-learning-ex\Lecture12.pdf

?????文件????2280366??2018-09-02?11:46??machine-learning-ex\Lecture13.pdf

?????文件????1685108??2018-09-02?11:47??machine-learning-ex\Lecture14.pdf

?????文件????3488418??2018-09-02?11:47??machine-learning-ex\Lecture15.pdf

?????文件????1485594??2018-09-02?11:49??machine-learning-ex\Lecture16.pdf

?????文件????2075061??2018-09-02?11:49??machine-learning-ex\Lecture17.pdf

?????文件????2067134??2018-09-02?11:49??machine-learning-ex\Lecture18.pdf

?????文件????????672??2018-08-05?17:30??machine-learning-ex\machine-learning-ex1\ex1\computeCost.m

?????文件????????712??2018-08-06?10:07??machine-learning-ex\machine-learning-ex1\ex1\computeCostMulti.m

?????文件???????4099??2018-08-05?15:04??machine-learning-ex\machine-learning-ex1\ex1\ex1.m

?????文件???????1359??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\ex1data1.txt

?????文件????????657??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\ex1data2.txt

?????文件???????4534??2018-08-06?12:04??machine-learning-ex\machine-learning-ex1\ex1\ex1_multi.m

?????文件???????1382??2018-08-05?22:35??machine-learning-ex\machine-learning-ex1\ex1\featureNormalize.m

?????文件???????1157??2018-08-05?18:44??machine-learning-ex\machine-learning-ex1\ex1\gradientDescent.m

?????文件????????986??2018-08-06?10:11??machine-learning-ex\machine-learning-ex1\ex1\gradientDescentMulti.m

?????文件???????1624??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\AUTHORS.txt

?????文件???????3862??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\ChangeLog.txt

?????文件????????881??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\jsonopt.m

?????文件???????1551??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\LICENSE_BSD.txt

?????文件??????18732??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\loadjson.m

?????文件??????15574??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\loadubjson.m

?????文件????????771??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\mergestruct.m

?????文件??????19369??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\README.txt

?????文件??????17462??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\savejson.m

?????文件??????16123??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\saveubjson.m

?????文件???????1094??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\jsonlab\varargin2struct.m

?????文件???????1195??2017-03-14?09:40??machine-learning-ex\machine-learning-ex1\ex1\lib\makeValidFieldName.m

............此處省略263個文件信息