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发表于 2005-9-19 06:37:30
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< >function renjiade<BR>xy91=dlmread('020618.six');<BR>x91=xy91(:,3);<BR>y91=xy91(:,2);</P>
<>dv(:, =dlmread('lon.dat');<BR>dv(:,=dlmread('lat.dat');<BR>dvx=dv(:,1);<BR>dvy=dv(:,2);dz=[];dmin=[];</P>
<>dz(1,1,3)=0;<BR>for i=1:length(dv), <BR> j1=10^5;j2=10^6;j3=10^7;j4=10^8;<BR> for j=1:91<BR> dm=sqrt((x91(j)-dvx(i))^2+(y91(j)-dvy(i))^2);<BR> if dm<j1,j1=dm;dz(i,1,=[x91(j) y91(j) j];end<BR> if dm>j1&dm<j2,j2=dm;dz(i,2,:)=[x91(j) y91(j) j];end<BR> if dm>j2&dm<j3,j3=dm;dz(i,3,:)=[x91(j) y91(j) j];end<BR> if dm>j3&dm<j4,j4=dm;dz(i,4,:)=[x91(j) y91(j) j];end<BR> end<BR>end<BR>dz;<BR>clear p567;<BR>p567(1,1,4)=[0];<BR>for k=1:2:length(fs)<BR> for i=1:length(dz)<BR> a1=mod(k,8);<BR> a2=floor(k/8)+1;<BR> switch a1<BR> case 1,a3=a1+3;<BR> case 3,a3=a1+2;<BR> case 5,a3=a1+1;<BR> case 7,a3=a1;<BR> end<BR> <BR> <BR> %a5=[a5;[fs(i,[zd])-zhen(a2,:,a3)]]<BR> p567(floor(k/2)+1,i,:)=zhen(a2,dz(i,:,3),a3);<BR> end<BR>end<BR> size(p567)<BR> u=[]; <BR>for m=1:length(dv), <BR> for r=1:4<BR>u(m,r)=sqrt((dvx(m)-dz(m,r,1))^2+(dvy(m)-dz(m,r,2))^2);<BR>end</P>
<P>end<BR>c1=[]; c2=[]; c3=[]; c4=[];cc=[];<BR> for m=1:length(dv),<BR> cc(m,1)=(u(m,2)*u(m,3)*u(m,4))^2+(u(m,1)*u(m,3)*u(m,4))^2+(u(m,1)*u(m,2)*u(m,4))^2+(u(m,1)*u(m,2)*u(m,3))^2; <BR> c1(m,1)=(u(m,2)*u(m,3)*u(m,4))^2/cc(m,1);<BR> c2(m,1)=(u(m,1)*u(m,3)*u(m,4))^2/cc(m,1);<BR> c3(m,1)=(u(m,1)*u(m,2)*u(m,4))^2/cc(m,1);<BR> c4(m,1)=(u(m,1)*u(m,2)*u(m,3))^2/cc(m,1);<BR> end<BR> c5=[c1,c2,c3,c4]';<BR> pe=[];<BR> for i=1:164<BR> for j=1:567 <BR> pe(i,j)=sum(c5(:,j).*reshape(p567(i,j,:),4,1))/sum(c5(:,j));<BR> end<BR> end<BR> <BR>yu1=[];yu2=[];<BR> for i=1:164<BR> yu1(i,:)= (fs(i*2-1,dv2)-pe(i,:)).^2;<BR> yu2(i,:)=(fs(i*2,dv2)-pe(i,:)).^2;<BR> end<BR> disp(['第一种预测均方差', num2str(sqrt(sum(sum(yu1))))])<BR> yuce2=sqrt(sum(sum(yu2)));<BR> disp(['第一种预测均方差', num2str( yuce2)])<BR></P> |
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