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大小:文件類型: .rar金幣: 2下載: 0 次發(fā)布日期: 2021-05-14
- 語言: Matlab
- 標簽:
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代碼片段和文件信息
load(‘q2x.txt‘);
load(‘q2y.txt‘);???
q2x=[ones(size(q2x1)1)?q2x];
m=size(q2x1);
n=size(q2x2);
r=0.8;
figure;?
hold?on;??
plot(q2x(:2)q2y‘.b‘);
q_x=min(q2x(:2)):.1:max(q2x(:2));?
q_y=zeros(size(q_x2)1);
theta=inv(q2x‘*q2x)*(q2x‘*q2y);
q_y=theta(2)*q_x+theta(1);
plot(q_xq_y‘b‘);?
%?theta=inv(q2x‘*q2x)*(q2x‘*q2y);
%?q_y=theta(2)*q_x+theta(1);
%?plot(q_xq_y‘b‘);????
rs=[.1?.3?.8?2?10];?
colors=[‘r‘?‘g‘?‘m‘?‘y‘?‘k‘];
llll=size(rs2);
for?l=1:5%size(rs2)?????
????r=rs(l);??
????for?k=1:1:size(q_x2)?????
????????w=zeros(mm);?
????????for?i=1:1:m???
????????????w(ii)=exp(-((q_x(k)-q2x(i2))^2)/(2*r^2));?
????????end
????????theta=(q2x‘*w*q2x)\(q2x‘*w*q2y);?????
????????q_y(k)=theta(1)+theta(2)*q_x(k);?
????end
%?????subplot(51l);
%?????plot(q_xq_y‘b‘);
????plot(q_xq_ycolors(l));
end
legend(‘trainingdata‘‘linear‘‘r=.1‘‘r=.3‘‘r=.8‘‘r=2‘‘r=10‘);
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????930??2017-11-03?17:26??加權(quán)回歸\jiaquan.m
?????文件????????773??2017-11-03?17:30??加權(quán)回歸\q2x.txt
?????文件????????774??2017-11-03?17:30??加權(quán)回歸\q2y.txt
?????目錄??????????0??2017-11-07?15:41??加權(quán)回歸
-----------?---------??----------?-----??----
?????????????????2477????????????????????4
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