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Type 'q()' to quit R. > x <- c(54.3,55.9,63.9,64,60.7,67.8,70.5,76.6,76.2,71.8,67.8,69.7,76.7,74.2,75.8,84.3,84.9,84.4,89.4,88.5,76.5,71.4,72.1,75.8,66.6,71.7,75.4,80.9,80.7,85,91.5,87.7,95.3,102.4,114.2,111.7,113.7,118.8,129,136.4,155,166,168.7,145.5,127.3,91.5,69,54,56.3,54.2,59.3,63.4,73.3,86.7,81.3,89.6,85.3,92.4,96.8,93.6,97.6,94.2,99.9,106.4,96,94.9,94.8,95.9,96.2,103.1,106.9,114.2,118.2,123.9,137.1,146.2,136.4,133.2,135.9,127.1,128.5,126.6,132.6,130.9) > par10 = 'FALSE' > par9 = '0' > par8 = '0' > par7 = '1' > par6 = '3' > par5 = '12' > par4 = '0' > par3 = '1' > par2 = '1' > par1 = '24' > par10 <- 'FALSE' > par9 <- '0' > par8 <- '0' > par7 <- '1' > par6 <- '3' > par5 <- '12' > par4 <- '0' > 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 ar3 ma1 1.2728 -0.1445 -0.2847 -0.8937 s.e. 0.1682 0.2262 0.1333 0.1509 sigma^2 estimated as 52.31: log likelihood = -200.98, aic = 411.96 > (forecast <- predict(arima.out,par1)) $pred Time Series: Start = 61 End = 84 Frequency = 1 [1] 92.68832 90.73787 89.29802 88.00678 87.12662 86.60285 86.43097 86.53845 [9] 86.84921 87.27813 87.74856 88.19687 88.57740 88.86303 89.04396 89.12464 [17] 89.11988 89.05065 88.94025 88.81110 88.68237 88.56863 88.47922 88.41850 $se Time Series: Start = 61 End = 84 Frequency = 1 [1] 7.232351 12.320305 17.493176 21.839469 25.302105 27.836797 29.569010 [8] 30.670745 31.329910 31.709148 31.930000 32.071928 32.182968 32.293179 [15] 32.424711 32.595932 32.820759 33.106092 33.450106 33.842793 34.268601 [22] 34.710044 35.151048 35.579188 > (lb <- forecast$pred - 1.96 * forecast$se) Time Series: Start = 61 End = 84 Frequency = 1 [1] 78.51291 66.59007 55.01139 45.20142 37.53450 32.04273 28.47571 26.42379 [9] 25.44258 25.12820 25.16576 25.33589 25.49878 25.56840 25.49152 25.23661 [17] 24.79119 24.16271 23.37804 22.47922 21.51592 20.53694 19.58316 18.68329 > (ub <- forecast$pred + 1.96 * forecast$se) Time Series: Start = 61 End = 84 Frequency = 1 [1] 106.8637 114.8857 123.5846 130.8121 136.7187 141.1630 144.3862 146.6531 [9] 148.2558 149.4281 150.3314 151.0579 151.6560 152.1577 152.5964 153.0127 [17] 153.4486 153.9386 154.5025 155.1430 155.8488 156.6003 157.3753 158.1537 > if (par2 == 0) { + x <- exp(x) + forecast$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] 54.30000 55.90000 63.90000 64.00000 60.70000 67.80000 70.50000 [8] 76.60000 76.20000 71.80000 67.80000 69.70000 76.70000 74.20000 [15] 75.80000 84.30000 84.90000 84.40000 89.40000 88.50000 76.50000 [22] 71.40000 72.10000 75.80000 66.60000 71.70000 75.40000 80.90000 [29] 80.70000 85.00000 91.50000 87.70000 95.30000 102.40000 114.20000 [36] 111.70000 113.70000 118.80000 129.00000 136.40000 155.00000 166.00000 [43] 168.70000 145.50000 127.30000 91.50000 69.00000 54.00000 56.30000 [50] 54.20000 59.30000 63.40000 73.30000 86.70000 81.30000 89.60000 [57] 85.30000 92.40000 96.80000 93.60000 92.68832 90.73787 89.29802 [64] 88.00678 87.12662 86.60285 86.43097 86.53845 86.84921 87.27813 [71] 87.74856 88.19687 88.57740 88.86303 89.04396 89.12464 89.11988 [78] 89.05065 88.94025 88.81110 88.68237 88.56863 88.47922 88.41850 > (perc.se <- (ub-forecast$pred)/1.96/forecast$pred) Time Series: Start = 61 End = 84 Frequency = 1 [1] 0.07802871 0.13577909 0.19589658 0.24815666 0.29040613 0.32143050 [7] 0.34211128 0.35441753 0.36073916 0.36331149 0.36388062 0.36364019 [13] 0.36333160 0.36340400 0.36414274 0.36573423 0.36827654 0.37176701 [19] 0.37609638 0.38106491 0.38641952 0.39190000 0.39728028 0.40239529 > postscript(file="/var/wessaorg/rcomp/tmp/1idcw1354196398.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$pred[i]) / locSD) + } > perf.mape[1] = abs(perf.pe[1]) > perf.mse[1] = abs(perf.se[1]) > for (i in 2:fx) { + perf.mape[i] = perf.mape[i-1] + abs(perf.pe[i]) + perf.mape1[i] = perf.mape[i] / i + perf.mse[i] = perf.mse[i-1] + perf.se[i] + perf.mse1[i] = perf.mse[i] / i + } > perf.rmse = sqrt(perf.mse1) > postscript(file="/var/wessaorg/rcomp/tmp/2obpb1354196398.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(forecast$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/3zawi1354196398.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/4rxqy1354196398.tab") > > try(system("convert tmp/1idcw1354196398.ps tmp/1idcw1354196398.png",intern=TRUE)) character(0) > try(system("convert tmp/2obpb1354196398.ps tmp/2obpb1354196398.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 1.766 0.347 2.096