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2Â¥2010-09-03 22:14:33
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clear %ÔʼÊý¾ÝÊäÈ룻 x0=[65.01;74.5;74.72;77.45;77.27;81.17]; n=length(x0); %ÓÉÊýÁÐx0Éú³ÉÊýÁÐx1; s=0; for i=1:n s=s+x0(i); x1(i)=s; end %ÓÉÊýÁÐx1Éú³É¾ØÕóCºÍA£» for i=1 : (n-1); A(i)=-(x1(i)+x1(i+1))/2; end A=[A' ones(n-1,1)]; for i=1 : (n-1); C(i)=x0(i+1); end C=C'; beta=inv(A'*A)*A'*C; %¼ÆËã³öaºÍu; a=beta(1); u=beta(2); %Çó³öÊýÁÐx1µÄÔ¤²âÖµÊýÁÐx2; m=input('ÇëÊäÈëÔ¤²âµÄÊýÄ¿:')+length(x0); for k=0 : (m-1) x2(k+1)=(x0(1)-u/a)*exp(-a*k)+u/a; end %Çó³öÔʼÊýÁÐx0µÄÔ¤²âÖµÊýÁÐx3; x3(1)=x0(1); for k=1 : (m-1) x3(k+1)=(1-exp(a))*(x0(1)-u/a)*exp(-a*k); end x3 t0=1:length(x0); t3=1:m; plot(t0,x0,'*',t3,x3) ÇëÊäÈëÔ¤²âµÄÊýÄ¿:6 x3 = 1 ÖÁ 7 ÁÐ 65.0100 73.8564 75.4048 76.9856 78.5995 80.2473 81.9296 8 ÖÁ 12 ÁÐ 83.6472 85.4008 87.1911 89.0190 90.8852 |

3Â¥2015-09-04 22:57:57














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