基于MATLAB的数据挖掘实验

基于Matlab的数据挖掘实验，主要适用于数据挖掘课程中关于矩阵实验的练习提升。

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 = sum（ （ X * theta - y ） .^ 2 ） / （ 2 * m ）;

% ====================== YOUR CODE HERE ======================
% Instructions: Compute the cost of a particular choice of theta
%               You should set J to the cost.





% =========================================================================

end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件     517350  2012-05-19 14:09  exp\ex1.pdf

     文件     140906  2012-05-19 14:09  exp\ex5.pdf

     文件     360509  2012-05-19 14:09  exp\ex6.pdf

     文件        672  2012-05-19 14:09  exp\mlclass-ex1\computeCost.m

     文件        711  2012-05-19 14:09  exp\mlclass-ex1\computeCostMulti.asv

     文件        711  2012-05-19 14:09  exp\mlclass-ex1\computeCostMulti.m

     文件       3441  2012-05-19 14:09  exp\mlclass-ex1\ex1.m

     文件       1359  2012-05-19 14:09  exp\mlclass-ex1\ex1data1.txt

     文件        657  2012-05-19 14:09  exp\mlclass-ex1\ex1data2.txt

     文件       4455  2012-05-19 14:09  exp\mlclass-ex1\ex1_multi.m

     文件       1323  2012-05-19 14:09  exp\mlclass-ex1\featureNormalize.asv

     文件       1381  2012-05-19 14:09  exp\mlclass-ex1\featureNormalize.m

     文件       1049  2012-05-19 14:09  exp\mlclass-ex1\gradientDescent.asv

     文件       1043  2012-05-19 14:09  exp\mlclass-ex1\gradientDescent.m

     文件       1149  2012-05-19 14:09  exp\mlclass-ex1\gradientDescentMulti.asv

     文件       1149  2012-05-19 14:09  exp\mlclass-ex1\gradientDescentMulti.m

     文件        655  2012-05-19 14:09  exp\mlclass-ex1\normalEqn.asv

     文件        646  2012-05-19 14:09  exp\mlclass-ex1\normalEqn.m

     文件        956  2012-05-19 14:09  exp\mlclass-ex1\plotData.m

     文件       9121  2012-05-19 14:09  exp\mlclass-ex1\submit.m

     文件      10733  2012-05-19 14:09  exp\mlclass-ex1\submitWeb.m

     文件        517  2012-05-19 14:09  exp\mlclass-ex1\warmUpExercise.m

     文件     478304  2012-05-19 14:09  exp\mlclass-ex1（不用交）.zip

     文件       6772  2012-05-19 14:09  exp\mlclass-ex5\ex5.asv

     文件       6772  2012-05-19 14:09  exp\mlclass-ex5\ex5.m

     文件       1321  2012-05-19 14:09  exp\mlclass-ex5\ex5data1.mat

     文件        510  2012-05-19 14:09  exp\mlclass-ex5\featureNormalize.m

     文件       8742  2012-05-19 14:09  exp\mlclass-ex5\fmincg.m

     文件       2568  2012-05-19 14:09  exp\mlclass-ex5\learningCurve.asv

     文件       2778  2012-05-19 14:09  exp\mlclass-ex5\learningCurve.m

............此处省略49个文件信息