R version 2.15.2 (2012-10-26) -- "Trick or Treat" Copyright (C) 2012 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: i686-pc-linux-gnu (32-bit) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > x <- c(9769,9321,9939,9336,10195,9464,10010,10213,9563,9890,9305,9391,9928,8686,9843,9627,10074,9503,10119,10000,9313,9866,9172,9241,9659,8904,9755,9080,9435,8971,10063,9793,9454,9759,8820,9403,9676,8642,9402,9610,9294,9448,10319,9548,9801,9596,8923,9746,9829,9125,9782,9441,9162,9915,10444,10209,9985,9842,9429,10132,9849,9172,10313,9819,9955,10048,10082,10541,10208,10233,9439,9963,10158,9225,10474,9757,10490,10281,10444,10640,10695,10786,9832,9747,10411,9511,10402,9701,10540,10112,10915,11183,10384,10834,9886,10216) > par10 = 'FALSE' > par9 = '1' > par8 = '2' > par7 = '2' > par6 = '2' > par5 = '12' > par4 = '1' > par3 = '1' > par2 = '1' > par1 = '24' > par10 <- 'FALSE' > par9 <- '1' > par8 <- '2' > par7 <- '2' > par6 <- '2' > par5 <- '12' > par4 <- '1' > par3 <- '1' > par2 <- '1' > par1 <- '24' > #'GNU S' R Code compiled by R2WASP v. 1.0.44 () > #Author: Prof. Dr. P. Wessa > #To cite this work: Wessa P., (2009), ARIMA Forecasting (v1.0.5) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_arimaforecasting.wasp/ > #Source of accompanying publication: > #Technical description: > par1 <- as.numeric(par1) #cut off periods > par2 <- as.numeric(par2) #lambda > par3 <- as.numeric(par3) #degree of non-seasonal differencing > par4 <- as.numeric(par4) #degree of seasonal differencing > par5 <- as.numeric(par5) #seasonal period > par6 <- as.numeric(par6) #p > par7 <- as.numeric(par7) #q > par8 <- as.numeric(par8) #P > par9 <- as.numeric(par9) #Q > if (par10 == 'TRUE') par10 <- TRUE > if (par10 == 'FALSE') par10 <- FALSE > if (par2 == 0) x <- log(x) > if (par2 != 0) x <- x^par2 > lx <- length(x) > first <- lx - 2*par1 > nx <- lx - par1 > nx1 <- nx + 1 > fx <- lx - nx > if (fx < 1) { + fx <- par5 + nx1 <- lx + fx - 1 + first <- lx - 2*fx + } > first <- 1 > if (fx < 3) fx <- round(lx/10,0) > (arima.out <- arima(x[1:nx], order=c(par6,par3,par7), seasonal=list(order=c(par8,par4,par9), period=par5), include.mean=par10, method='ML')) Call: arima(x = x[1:nx], order = c(par6, par3, par7), seasonal = list(order = c(par8, par4, par9), period = par5), include.mean = par10, method = "ML") Coefficients: ar1 ar2 ma1 ma2 sar1 sar2 sma1 -0.9830 -0.3497 0.0184 -0.5342 0.3909 0.2356 -1.0000 s.e. 0.2231 0.1567 0.1919 0.1651 0.1947 0.2483 0.3141 sigma^2 estimated as 60955: log likelihood = -414.29, aic = 844.58 > (forecast <- predict(arima.out,par1)) $pred Time Series: Start = 73 End = 96 Frequency = 1 [1] 10216.858 9350.151 10327.180 9907.719 9976.621 10150.781 10466.092 [8] 10598.537 10271.910 10299.124 9651.370 10170.164 10278.641 9486.329 [15] 10467.603 10036.424 10197.586 10229.288 10549.049 10712.965 10363.580 [22] 10432.356 9750.755 10226.172 $se Time Series: Start = 73 End = 96 Frequency = 1 [1] 258.7033 258.8489 260.1203 277.4202 278.2201 287.0056 291.0451 295.8239 [9] 301.0595 305.4352 310.2924 314.7351 361.6552 366.2475 372.0634 385.1807 [17] 390.3728 399.9793 407.2195 414.7974 422.3799 429.6123 436.8412 443.7404 > (lb <- forecast$pred - 1.96 * forecast$se) Time Series: Start = 73 End = 96 Frequency = 1 [1] 9709.799 8842.807 9817.344 9363.975 9431.309 9588.250 9895.644 [8] 10018.722 9681.833 9700.471 9043.197 9553.284 9569.797 8768.484 [15] 9738.359 9281.470 9432.455 9445.329 9750.899 9899.962 9535.716 [22] 9590.316 8894.547 9356.441 > (ub <- forecast$pred + 1.96 * forecast$se) Time Series: Start = 73 End = 96 Frequency = 1 [1] 10723.916 9857.495 10837.016 10451.462 10521.932 10713.312 11036.541 [8] 11178.351 10861.986 10897.777 10259.543 10787.045 10987.485 10204.174 [15] 11196.848 10791.378 10962.717 11013.248 11347.199 11525.968 11191.445 [22] 11274.396 10606.964 11095.903 > if (par2 == 0) { + x <- exp(x) + forecast$pred <- exp(forecast$pred) + lb <- exp(lb) + ub <- exp(ub) + } > if (par2 != 0) { + x <- x^(1/par2) + forecast$pred <- forecast$pred^(1/par2) + lb <- lb^(1/par2) + ub <- ub^(1/par2) + } > if (par2 < 0) { + olb <- lb + lb <- ub + ub <- olb + } > (actandfor <- c(x[1:nx], forecast$pred)) [1] 9769.000 9321.000 9939.000 9336.000 10195.000 9464.000 10010.000 [8] 10213.000 9563.000 9890.000 9305.000 9391.000 9928.000 8686.000 [15] 9843.000 9627.000 10074.000 9503.000 10119.000 10000.000 9313.000 [22] 9866.000 9172.000 9241.000 9659.000 8904.000 9755.000 9080.000 [29] 9435.000 8971.000 10063.000 9793.000 9454.000 9759.000 8820.000 [36] 9403.000 9676.000 8642.000 9402.000 9610.000 9294.000 9448.000 [43] 10319.000 9548.000 9801.000 9596.000 8923.000 9746.000 9829.000 [50] 9125.000 9782.000 9441.000 9162.000 9915.000 10444.000 10209.000 [57] 9985.000 9842.000 9429.000 10132.000 9849.000 9172.000 10313.000 [64] 9819.000 9955.000 10048.000 10082.000 10541.000 10208.000 10233.000 [71] 9439.000 9963.000 10216.858 9350.151 10327.180 9907.719 9976.621 [78] 10150.781 10466.092 10598.537 10271.910 10299.124 9651.370 10170.164 [85] 10278.641 9486.329 10467.603 10036.424 10197.586 10229.288 10549.049 [92] 10712.965 10363.580 10432.356 9750.755 10226.172 > (perc.se <- (ub-forecast$pred)/1.96/forecast$pred) Time Series: Start = 73 End = 96 Frequency = 1 [1] 0.02532122 0.02768392 0.02518793 0.02800041 0.02788721 0.02827424 [7] 0.02780838 0.02791177 0.02930901 0.02965642 0.03215008 0.03094691 [13] 0.03518511 0.03860793 0.03554428 0.03837828 0.03828091 0.03910139 [19] 0.03860248 0.03871920 0.04075618 0.04118076 0.04480075 0.04339262 > postscript(file="/var/wessaorg/rcomp/tmp/1bvxk1354367695.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > opar <- par(mar=c(4,4,2,2),las=1) > ylim <- c( min(x[first:nx],lb), max(x[first:nx],ub)) > plot(x,ylim=ylim,type='n',xlim=c(first,lx)) > usr <- par('usr') > rect(usr[1],usr[3],nx+1,usr[4],border=NA,col='lemonchiffon') > rect(nx1,usr[3],usr[2],usr[4],border=NA,col='lavender') > abline(h= (-3:3)*2 , col ='gray', lty =3) > polygon( c(nx1:lx,lx:nx1), c(lb,rev(ub)), col = 'orange', lty=2,border=NA) > lines(nx1:lx, lb , lty=2) > lines(nx1:lx, ub , lty=2) > lines(x, lwd=2) > lines(nx1:lx, forecast$pred , lwd=2 , col ='white') > box() > par(opar) > dev.off() null device 1 > prob.dec <- array(NA, dim=fx) > prob.sdec <- array(NA, dim=fx) > prob.ldec <- array(NA, dim=fx) > prob.pval <- array(NA, dim=fx) > perf.pe <- array(0, dim=fx) > perf.mape <- array(0, dim=fx) > perf.mape1 <- array(0, dim=fx) > perf.se <- array(0, dim=fx) > perf.mse <- array(0, dim=fx) > perf.mse1 <- array(0, dim=fx) > perf.rmse <- array(0, dim=fx) > for (i in 1:fx) { + locSD <- (ub[i] - forecast$pred[i]) / 1.96 + perf.pe[i] = (x[nx+i] - forecast$pred[i]) / forecast$pred[i] + perf.se[i] = (x[nx+i] - forecast$pred[i])^2 + prob.dec[i] = pnorm((x[nx+i-1] - forecast$pred[i]) / locSD) + prob.sdec[i] = pnorm((x[nx+i-par5] - forecast$pred[i]) / locSD) + prob.ldec[i] = pnorm((x[nx] - forecast$pred[i]) / locSD) + prob.pval[i] = pnorm(abs(x[nx+i] - forecast$pred[i]) / locSD) + } > perf.mape[1] = abs(perf.pe[1]) > perf.mse[1] = abs(perf.se[1]) > for (i in 2:fx) { + perf.mape[i] = perf.mape[i-1] + abs(perf.pe[i]) + perf.mape1[i] = perf.mape[i] / i + perf.mse[i] = perf.mse[i-1] + perf.se[i] + perf.mse1[i] = perf.mse[i] / i + } > perf.rmse = sqrt(perf.mse1) > postscript(file="/var/wessaorg/rcomp/tmp/2isth1354367695.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(forecast$pred, pch=19, type='b',main='ARIMA Extrapolation Forecast', ylab='Forecast and 95% CI', xlab='time',ylim=c(min(lb),max(ub))) > dum <- forecast$pred > dum[1:par1] <- x[(nx+1):lx] > lines(dum, lty=1) > lines(ub,lty=3) > lines(lb,lty=3) > dev.off() null device 1 > > #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/wessaorg/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Univariate ARIMA Extrapolation Forecast',9,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'time',1,header=TRUE) > a<-table.element(a,'Y[t]',1,header=TRUE) > a<-table.element(a,'F[t]',1,header=TRUE) > a<-table.element(a,'95% LB',1,header=TRUE) > a<-table.element(a,'95% UB',1,header=TRUE) > a<-table.element(a,'p-value
(H0: Y[t] = F[t])',1,header=TRUE) > a<-table.element(a,'P(F[t]>Y[t-1])',1,header=TRUE) > a<-table.element(a,'P(F[t]>Y[t-s])',1,header=TRUE) > mylab <- paste('P(F[t]>Y[',nx,sep='') > mylab <- paste(mylab,'])',sep='') > a<-table.element(a,mylab,1,header=TRUE) > a<-table.row.end(a) > for (i in (nx-par5):nx) { + a<-table.row.start(a) + a<-table.element(a,i,header=TRUE) + a<-table.element(a,x[i]) + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.row.end(a) + } > for (i in 1:fx) { + a<-table.row.start(a) + a<-table.element(a,nx+i,header=TRUE) + a<-table.element(a,round(x[nx+i],4)) + a<-table.element(a,round(forecast$pred[i],4)) + a<-table.element(a,round(lb[i],4)) + a<-table.element(a,round(ub[i],4)) + a<-table.element(a,round((1-prob.pval[i]),4)) + a<-table.element(a,round((1-prob.dec[i]),4)) + a<-table.element(a,round((1-prob.sdec[i]),4)) + a<-table.element(a,round((1-prob.ldec[i]),4)) + a<-table.row.end(a) + } > a<-table.end(a) > table.save(a,file="/var/wessaorg/rcomp/tmp/3ml9z1354367695.tab") > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Univariate ARIMA Extrapolation Forecast Performance',7,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'time',1,header=TRUE) > a<-table.element(a,'% S.E.',1,header=TRUE) > a<-table.element(a,'PE',1,header=TRUE) > a<-table.element(a,'MAPE',1,header=TRUE) > a<-table.element(a,'Sq.E',1,header=TRUE) > a<-table.element(a,'MSE',1,header=TRUE) > a<-table.element(a,'RMSE',1,header=TRUE) > a<-table.row.end(a) > for (i in 1:fx) { + a<-table.row.start(a) + a<-table.element(a,nx+i,header=TRUE) + a<-table.element(a,round(perc.se[i],4)) + a<-table.element(a,round(perf.pe[i],4)) + a<-table.element(a,round(perf.mape1[i],4)) + a<-table.element(a,round(perf.se[i],4)) + a<-table.element(a,round(perf.mse1[i],4)) + a<-table.element(a,round(perf.rmse[i],4)) + a<-table.row.end(a) + } > a<-table.end(a) > table.save(a,file="/var/wessaorg/rcomp/tmp/45pom1354367695.tab") > > try(system("convert tmp/1bvxk1354367695.ps tmp/1bvxk1354367695.png",intern=TRUE)) character(0) > try(system("convert tmp/2isth1354367695.ps tmp/2isth1354367695.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 3.952 0.581 4.522