[w1]=xlsread（‘w1‘）;
%load?sample_ex3.mat;
x1=w1（:1）;x2=w1（:2）;x3=w1（:3）;
u1=mean（x1）;sigma1=mean（（x1-u1）.^2）;
u2=mean（x2）;sigma2=mean（（x2-u2）.^2）;
u3=mean（x3）;sigma3=mean（（x3-u3）.^2）;
fprintf（‘the?mean?and?variance?of?feasure?x1:?%f?%f?\n‘u1sigma1）;
fprintf（‘the?mean?and?variance?of?feasure?x2:?%f?%f?\n‘u2sigma2）;
fprintf（‘the?mean?and?variance?of?feasure?x3:?%f?%f?\n‘u3sigma3）;

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件?????????403??2018-09-21?16:03??ex1.m
?????文件?????????754??2018-09-21?16:04??ex2.m
?????文件?????????208??2018-09-21?16:06??ex3.m
?????文件?????????293??2018-09-21?16:08??ex4.m
?????文件?????????842??2018-09-21?16:19??ex5.asv
?????文件?????????732??2018-09-21?16:25??ex5.m
?????文件????????1164??2018-09-21?16:31??jidasiran.m
?????文件????????4738??2018-09-21?16:51??ML.m
?????文件????????2836??2018-09-21?16:51??ML_and_MAP.m
?????文件???????18944??2018-09-21?15:51??w1.xls