excel解决灰色预测模型知识讲解.doc
Good is good, but better carries it.精益求精，善益求善。excel解决灰色预测模型-¡¿200310´75¡u8260X451¡u8260X-¡¶´º¡¿B-11124¡·”¯¡¿-11124R759;R213;R264-11138dt+aY-11247t=-11247(3)¡´”¯¡¿100826013(2003)0520451203·¸·“GM(1,1)£u8212X,·¢u61623X··¡¡¡¡»«£u8212XGM(1,1)·¤:¡¡Yt=(X0-a)e2at+a¡¡(t=0,1,2¡u8250X¡u8250X,n)(4)-7516“»ø·¡,¤u8222X¶u731X´u732X“»»¡¢¤-7666X0“¿-7666(t=0)-7653,¢u8212X´u732X»u8222XØu61623X,¢u402X·¶,øu8212X¡¶¸u61623X¤u8222X¿,·¡u732X¶u64258X·¢»“£ß·¸¸ª·¤·“nn:nn··¤¡£GM(1,1)£u8212XGM£u8212X»¸ø¡¶¸u61623X¤u8250X¥»¿»¢,§=(¡u728Xt=1nZt2)(¡u728Xt=1nXt)-(¡u728Xt=1Zt)(¡u728Xt=1XtZt)··,«¸ª¨u8240X··1¡£Æ”,Microsoft«¸u732XOfn(¡u728Xt=1Zt2)-(¡u728Xt=1nZt)2nn(5)fice2000¨Excelæu8240X»«£u8212XGM(1,1)¡¢,GM£u8212X´¸ª¶¡£n(¡u728Xt=1a=(¡u728Xt=1nZt2)-(¡u728Xt=1Xt)(¡u728Xt=1Zt)2Zt)-n(¡u728Xt=1XtZt)n(6)1.2.4¡¡¸ªXtXt1¡¡”··¤1.1¡¡··”·¨u8230X¡¡··SXt=Yt-Yt-1¡¡(t=1,2,¡u8250X¡u8250X,n)1.2.5¡¡¸ª”Øu8224X¨C”¡u731X¯´(7)p¡¡¨17¶¨¡u8211X¤u8218X·¢u8224X¡u730X,Office2000Xt”t=Xt-Xt(t=1,2,¡u8250X¡u8250X,n)¨SAS6.12·¡£1.2¡¡»«£u8212XGM(1,1)¤¢u61623X·¤1¡«3·“S1”S2:nn¡¡n+1Øu8225X“Xt(t=¡¡S1=¡u728Xt=1(Xt-X)2¡¡(X=¡u728Xt=1Xt)(8)0,1,2,3¡u8250X¡u8250X,n),£¤¢¨´:1.2.1¡¡¡¡Xt“Yt:t¡¡S2=n¡u728Xt=1n(t-l)2n¡¡(l=n¡u728Xt=1nnt)(9)Yt=¡u728XXt¡¡(t=0,1,2¡u8250X¡u8250X,n)i=01.2.2¡¡ø¡¡¶(1)Yt·«(2)¡¡C=S2S1¡¡p=pt-l<0.6745S1=¡u728Xk(10)ø:Zt=(Yt+Yt-1)2¡¡(t=1,2,¡u8250X¡u8250X,n)(2)“t-l<0.6745S1)n¡¡(¡u728Xk(11)1.2.3¡¡¤¢GM(1,1)£u8212X¡¡YtYt»1.3¡¡¡¡øC¡¢p¸ªÆß,·1¢··“¡¥»¡¿:·§§”¡§,ª¶«ª¡¡··¤«¶¨¨¶¯u8212X¶¤:¨u8260X«¶¨u732X¨u8230X¶·»¶¤u732X“:,¿·u711X´u730X510632¡Ø¡¿´(1961-),”Ø”¨¸,¸¶¿¡£Xt=Yt-Yt-1¡¡(t=n+1,n+2,¡u8250X¡u8250X,n+k)(12)1.4¡¡Excel渪“¿·:¸”¡¢¡¡§u61623X·¤¿¡£1.4.1¡¡¤¢æÆ¡¡¨2¸ø¡£ThankyoufortryingNemoPDFToWord3.0.ThisfreetrialversionislimitedtoconvertonlyonepageforyoutoevaluateNemoPDFToWord3.0.IfyouwishtoobtainunrestrictedfunctionalitiesofNemoPDFToWord3.0,pleasevisit:tobuythefullversion.
