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pingxieͳæ (³õÈëÎÄ̳)
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function n=spi(R) P=zeros(84,1); file_data=zeros(84,1); filedata=zeros(84,1); g=zeros(84,1); A=zeros(84,1); C=zeros(30,84); c0=2.515517; c1=0.802853; c2=0.010328; d1=1.432788; d2=0.189269; d3=0.001308; D=importdata('D:\Program Files\ÆøÏóÒªËØÊµÊ±×ÊÁÏ´¦Àíϵͳ\text\ZXÑ®½µË®.txt'); data=D.data; text=D.textdata; [c,r]=sort(text(3:86,1)); for m=1:84 x(m, =data(r(m), ;end pathname=['D:\SPI\1971£2000ÖðÕ¾¸÷Ñ®½µË®Á¿\']; files=dir([pathname '*.txt' ]); [file_num,s]=size(files); for m=1:file_num B=load([pathname files(m).name]); n=R; C(:,m)=B(:,n); end C=C.*0.1; for m=1:84 c=C(:,m); index=find(c~=32766); index0=find(c==0); [num,p]=size(index); [num0,q]=size(index0); if num0~=0 c(index0)=0.001; end P(m,1)=sum(c(index))/num; file_data(m,1)=log(P(m,1)); d=prod(c(index)); filedata(m,1)=log(d)/num; end A=file_data-filedata; X=x(:,2); for m=1:84 if X(m,1)==0 X(m,1)=0.001; end a(m,1)=(1+sqrt(1+4*A(m,1)/3))/(4*A(m,1)); b(m,1)=P(m,1)/a(m,1); G(m,1)=gammainc(X(m,1)/b(m,1),a(m,1)); end for M=1:84 if G(M,1)>0.5 t=sqrt(log(1/((1-G(M,1))^2))); SPI(M,1)=(t-(c1*t+c2*t^2-c0))/(1+d1*t+d2*t^2+d3*t^3); else t=sqrt(log(1/(G(M,1)^2))); SPI(M,1)=((c1*t+c2*t^2-c0)-t)/(1+d1*t+d2*t^2+d3*t^3); end end fid=fopen('D:\SPI\data.txt','w'); fprintf(fid,'%.1f\r\n',SPI); fclose(fid); ÕâÊÇÒ»¸ö¼ÆËã±ê×¼»¯½µË®Ö¸ÊýµÄ³ÌÐò£¬ÓдóÉñ¿´µÃ¶®Âð?¿ÉÒÔÒ»Ò»¸øÎÒ½âÊÍÏÂÂ𣿠|
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shenfan19
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pingxie: ½ð±Ò+5, ²©Ñ§EPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2015-07-21 10:06:31
pingxie: ½ð±Ò+5, ²©Ñ§EPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2015-07-21 10:06:31
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²»ÖªµÀÄãҪʲô·ÖÎö£¬Õâ¾ÍÊǸö¼òµ¥µÄ´¦Àí³ÌÐò£¬¶ÁÈ¡Êý¾Ý£¬ÅÅÐò£¬¼ÆËãÖ®ÀàµÄ³ÌÐò£¬¸úexcel±íµÄ¹¦Äܲ¶à£¬Ìصã¾ÍÊÇÅúÁ¿´¦ÀíÒ»¶ÑtxtÎļþÀïµÄÊý¾Ý¡£¾ßÌåרҵµÄ¼ÆËã²»¶®£¬Ö»ÄܸøÄã¼òµ¥×¢ÊÍÏÂͨÓÃÎļþ²Ù×÷¡£ function n=spi(R) %º¯ÊýÍ· P=zeros(84,1); file_data=zeros(84,1); filedata=zeros(84,1); g=zeros(84,1); A=zeros(84,1); C=zeros(30,84); %ÒÔÉϳõʼ»¯ c0=2.515517; c1=0.802853; c2=0.010328; d1=1.432788; d2=0.189269; d3=0.001308; % ÒÔÉÏרҵ²ÎÊý D=importdata('D:\Program Files\ÆøÏóÒªËØÊµÊ±×ÊÁÏ´¦Àíϵͳ\text\ZXÑ®½µË®.txt'); data=D.data; text=D.textdata; % Êý¾Ý [c,r]=sort(text(3:86,1)); % ÅÅÐò for m=1:84 x(m,=data(r(m),; % ÅÅÐòºóµÄÊý¾ÝдÈëÒ»¸ö¾ØÕó end pathname=['D:\SPI\1971£2000ÖðÕ¾¸÷Ñ®½µË®Á¿\']; files=dir([pathname '*.txt' ]); % »ñÈ¡Îļþ¼ÐÖÐÿ¸öÎļþÃû [file_num,s]=size(files); % ¹²Óм¸¸öÎļþ for m=1:file_num B=load([pathname files(m).name]); n=R; C(:,m)=B(:,n); end % ÒÔÉÏÒÀ´Î¶Áȡÿ¸öÎļþ£¬´æÈëÊý×éC C=C.*0.1; for m=1:84 c=C(:,m); index=find(c~=32766); index0=find(c==0); [num,p]=size(index); [num0,q]=size(index0); if num0~=0 c(index0)=0.001; end P(m,1)=sum(c(index))/num; file_data(m,1)=log(P(m,1)); d=prod(c(index)); filedata(m,1)=log(d)/num; end A=file_data-filedata; X=x(:,2); for m=1:84 if X(m,1)==0 X(m,1)=0.001; end a(m,1)=(1+sqrt(1+4*A(m,1)/3))/(4*A(m,1)); b(m,1)=P(m,1)/a(m,1); G(m,1)=gammainc(X(m,1)/b(m,1),a(m,1)); end for M=1:84 if G(M,1)>0.5 t=sqrt(log(1/((1-G(M,1))^2))); SPI(M,1)=(t-(c1*t+c2*t^2-c0))/(1+d1*t+d2*t^2+d3*t^3); else t=sqrt(log(1/(G(M,1)^2))); SPI(M,1)=((c1*t+c2*t^2-c0)-t)/(1+d1*t+d2*t^2+d3*t^3); end end %ÒÔÉϾͲ»¶®ÁË£¬Ó¦¸ÃÊÇרҵµÄ¼ÆËã fid=fopen('D:\SPI\data.txt','w'); % ´æÈëÎļþ fprintf(fid,'%.1f\r\n',SPI); % дÈëÊý¾Ý fclose(fid); |

4Â¥2015-07-21 10:04:04
ÐÇ»ðÖ®Ô´
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2Â¥2015-07-19 00:52:37
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3Â¥2015-07-19 09:07:21
pingxie
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5Â¥2015-07-21 10:06:54
zhangrui8800
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6Â¥2016-11-11 11:05:43













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