clear;close?all;clc;
m?=?400;
mu_1?=?[-2.52.5];
sigma_1?=?[1.21?0;0?0.81];
C1?=?mvnrnd（mu_1sigma_1m）;

mu_2?=?[2.5-2.5];
sigma_2?=?[1.21?0;0?0.81];
C2?=?mvnrnd（mu_2sigma_2m）;
plot（C1（:1）C1（:2）‘r.‘‘MarkerSize‘6）;
hold?on
plot（C2（:1）C2（:2）‘g.‘‘MarkerSize‘6）
title（‘Original?data‘）;
legend（‘+‘‘-‘）;
hold?off

X?=?[C1;C2];
y?=?[ones（m1）;-ones（m1）;];
center?=?[mu_1;mu_2];

data?=?[Xy];
percent?=?0.4;
nTest?=?2*m*percent;
idx_test?=?randperm（2*mnTest）;
idx_train?=?setdiff（1:2*midx_test）;

train_x?=?data（idx_train1:2）;
train_y?=?data（idx_train3）;
idx?=?find（?train_y?==?1?）;
index?=?find（?train_y?==?-1?）;

figure;
plot（train_x（idx1）train_x（idx2）‘r.‘‘MarkerSize‘6）;
hold?on
plot（train_x（index1）train_x（index2）‘g.‘‘MarkerSize‘6）;
title（‘Training?set‘）;
legend（‘+‘‘-‘）;
hold?off

figure;
test_x?=?data（idx_test1:2）;
test_y?=?data（idx_test3）;
idx?=?find（?test_y?==?1?）;
index?=?find（?test_y?==?-1?）;
plot（test_x（idx1）test_x（idx2）‘r.‘‘MarkerSize‘6）;
hold?on
plot（test_x（index1）test_x（index2）‘g.‘‘MarkerSize‘6）;
title（‘Testing?set‘）;
legend（‘+‘‘-‘）;
hold?off

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-11-12?14:08??SVM\
?????目錄???????????0??2016-11-12?14:08??SVM\UCI_Mnist\
?????文件??????140831??2016-07-06?07:24??SVM\UCI_Mnist\UCI_Minst.mat
?????文件????????1138??2016-07-06?07:18??SVM\UCI_Mnist\svmclassifer.m
?????文件?????????544??2016-07-06?07:27??SVM\UCI_Mnist\Demo.m
?????目錄???????????0??2016-11-15?15:20??SVM\Nolinear\
?????文件???????74267??2016-11-15?15:20??SVM\Nolinear\ellipse_2.mat
?????文件???????49484??2016-09-11?01:37??SVM\Nolinear\ellipse_1.mat
?????文件???????25005??2016-08-31?11:29??SVM\Nolinear\ellipse.mat
?????文件????????1000??2016-12-07?13:52??SVM\Nolinear\Demo_nolinear.m
?????文件????????1147??2016-11-15?15:19??SVM\Nolinear\DataMaker.m
?????目錄???????????0??2016-11-12?14:08??SVM\Linear\
?????文件???????12948??2016-09-10?14:12??SVM\Linear\linear.mat
?????文件????????1072??2016-09-10?14:16??SVM\Linear\Demo_linear.m
?????文件????????1159??2016-09-10?13:44??SVM\Linear\DataMaker.m