标Р1951Р0.9Р32Р1952Р1.2Р25Р1953Р2.2Р20Р1954Р2.4Р26Р1955Р-0.5Р27Р1956Р2.5Р24Р1957Р-1.1Р28Р1958Р0Р24Р1959Р6.2Р15Р1960Р2.7Р16Р1961Р3.2Р24Р1962Р-1.1Р30Р1963Р2.5Р22Р1964Р1.2Р30Р1965Р1.8Р24Р1966Р0.6Р33Р1967Р2.4Р26Р1968Р2.5Р20Р1969Р1.2Р32Р1970Р-0.8Р35Р二、fortran程序Рprogram mainРimplicit noneРinteger iРreal::x(20),y(20),sumx=0,sumy=0,xa,ya,b,a,sx=0,sy=0,sxy=0,f,rxyРopen(8,file='d:\shiyan.dat')Рdo i=1,20Рread(8,*) y(i),x(i)Рend doРdo i=1,20Рsumx=sumx+x(i)Рsumy=sumy+y(i)Рend doРxa=sumx/20Рya=sumy/20Рdo i=1,20Рsx=sx+(x(i)-xa)**2Рsy=sy+(y(i)-ya)**2Рsxy=sxy+(x(i)-xa)*(y(i)-ya)Рend doРsx=sqrt(sx/20)Рsy=sqrt(sy/20)Рsxy=sxy/20Рb=sxy/sx/sxРa=ya-b*xaРprint *,'y=',b,'x','+',aРrxy=sx*b/syРf=rxy**2*18/(1-rxy**2)Рif(f>4.41) print *,'F=',f,'>Fα=4.41,回归方程显著'Рif(f<=4.41) print *,'F=',f,'<Fα=4.41,回归方程不显著'РEndР三、运行结果显示
全文预览
