R version 2.9.0 (2009-04-17) Copyright (C) 2009 The R Foundation for Statistical Computing ISBN 3-900051-07-0 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(100.21 + ,100.36 + ,100.62 + ,100.78 + ,100.93 + ,100.70 + ,100.00 + ,100.20 + ,99.68 + ,99.56 + ,100.06 + ,100.50 + ,99.30 + ,99.37 + ,99.20 + ,98.11 + ,97.60 + ,97.76 + ,98.06 + ,98.25 + ,98.50 + ,97.39 + ,98.09 + ,97.78 + ,98.12 + ,97.50 + ,97.30 + ,97.64 + ,96.88 + ,97.40 + ,98.27 + ,97.94 + ,98.61 + ,98.72 + ,98.62 + ,98.56 + ,98.06 + ,97.40 + ,97.76 + ,97.05 + ,97.85 + ,97.40 + ,97.27 + ,97.93 + ,98.60 + ,98.70 + ,98.88 + ,98.27 + ,97.85 + ,97.70 + ,96.97 + ,97.72 + ,97.66 + ,99.00 + ,98.86 + ,99.56 + ,100.19 + ,100.37 + ,100.01 + ,99.68 + ,99.78 + ,99.36 + ,99.21 + ,99.26 + ,99.26 + ,100.43 + ,101.50 + ,102.27 + ,102.69 + ,103.47 + ,104.02 + ,103.55 + ,103.77 + ,104.19 + ,103.64 + ,103.68 + ,105.39 + ,106.61 + ,108.12 + ,109.22 + ,110.17 + ,110.31 + ,111.06 + ,111.14 + ,111.39 + ,112.51 + ,111.28 + ,112.22 + ,113.19 + ,114.32 + ,115.34 + ,116.61 + ,117.83 + ,117.70 + ,118.51 + ,118.82 + ,119.49 + ,119.57 + ,120.00 + ,121.96 + ,121.45 + ,123.41 + ,124.44 + ,126.25 + ,127.41 + ,127.63 + ,129.19 + ,129.82 + ,130.45 + ,132.02 + ,132.72 + ,132.96 + ,135.06 + ,137.04 + ,137.83 + ,139.17 + ,140.35 + ,141.01 + ,141.89 + ,143.28 + ,142.90 + ,143.37 + ,145.03 + ,146.05 + ,147.39 + ,149.58 + ,151.02 + ,153.57 + ,155.60 + ,157.18 + ,158.77 + ,159.95 + ,161.34 + ,161.95 + ,163.36 + ,165.00 + ,166.65 + ,168.65 + ,170.29 + ,172.70 + ,173.79 + ,176.45 + ,177.58 + ,179.19 + ,181.01 + ,184.08 + ,185.63 + ,188.51 + ,190.18 + ,192.19 + ,193.47 + ,196.73 + ,200.39 + ,203.24 + ,205.53 + ,208.21 + ,208.88 + ,212.85 + ,216.41 + ,216.23 + ,219.27 + ,222.02 + ,224.89 + ,230.37 + ,232.29 + ,235.53 + ,236.92 + ,242.37 + ,242.75 + ,244.19 + ,247.94 + ,248.80 + ,250.18 + ,251.55 + ,254.40 + ,255.72 + ,257.69 + ,258.37 + ,258.22 + ,258.59 + ,257.45 + ,257.45 + ,256.73 + ,258.82 + ,257.99 + ,262.85 + ,262.58 + ,261.55 + ,261.25 + ,259.78 + ,256.26 + ,254.29 + ,248.50 + ,241.88 + ,238.53 + ,232.24 + ,232.46 + ,225.79 + ,221.63 + ,219.62 + ,215.94 + ,211.81 + ,205.57 + ,201.25 + ,194.70 + ,187.94 + ,185.61 + ,181.15 + ,186.50 + ,183.21 + ,182.61 + ,187.09 + ,189.10 + ,191.25 + ,190.74 + ,190.79) > par10 = 'FALSE' > par9 = '1' > par8 = '1' > par7 = '1' > par6 = '3' > par5 = '12' > par4 = '0' > par3 = '2' > par2 = '-1.0' > par1 = '0' > par1 <- 33 > 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 sar1 sma1 -0.1866 0.0586 0.1212 -0.9233 0.7954 -0.5815 s.e. 0.0896 0.0891 0.0807 0.0336 0.1067 0.1522 sigma^2 estimated as 1.982e-09: log likelihood = 1554.76, aic = -3095.52 > (forecast <- predict(arima.out,par1)) $pred Time Series: Start = 184 End = 216 Frequency = 1 [1] 0.003882153 0.003869044 0.003851445 0.003829355 0.003801381 0.003781857 [7] 0.003765020 0.003757319 0.003739014 0.003740516 0.003729020 0.003717390 [13] 0.003710283 0.003698253 0.003683864 0.003668244 0.003646994 0.003632926 [19] 0.003621136 0.003616499 0.003603513 0.003606275 0.003598691 0.003591013 [25] 0.003586928 0.003578928 0.003569054 0.003558199 0.003542867 0.003533246 [31] 0.003525439 0.003523320 0.003514560 $se Time Series: Start = 184 End = 216 Frequency = 1 [1] 4.452233e-05 5.960655e-05 7.564149e-05 9.282209e-05 1.082414e-04 [6] 1.237630e-04 1.391500e-04 1.543666e-04 1.696536e-04 1.849935e-04 [11] 2.004335e-04 2.160156e-04 2.353686e-04 2.541230e-04 2.733445e-04 [16] 2.930440e-04 3.128076e-04 3.328457e-04 3.531118e-04 3.735896e-04 [21] 3.943103e-04 4.152677e-04 4.364669e-04 4.579131e-04 4.819132e-04 [26] 5.057613e-04 5.300973e-04 5.549223e-04 5.799578e-04 6.053293e-04 [31] 6.309984e-04 6.569468e-04 6.831897e-04 > (lb <- forecast$pred - 1.96 * forecast$se) Time Series: Start = 184 End = 216 Frequency = 1 [1] 0.003794890 0.003752215 0.003703187 0.003647424 0.003589228 0.003539281 [7] 0.003492286 0.003454760 0.003406493 0.003377929 0.003336170 0.003293999 [13] 0.003248960 0.003200172 0.003148109 0.003093878 0.003033891 0.002980548 [19] 0.002929037 0.002884263 0.002830665 0.002792350 0.002743216 0.002693503 [25] 0.002642378 0.002587636 0.002530063 0.002470551 0.002406149 0.002346801 [31] 0.002288682 0.002235704 0.002175508 > (ub <- forecast$pred + 1.96 * forecast$se) Time Series: Start = 184 End = 216 Frequency = 1 [1] 0.003969417 0.003985873 0.003999702 0.004011286 0.004013534 0.004024432 [7] 0.004037753 0.004059877 0.004071535 0.004103103 0.004121869 0.004140781 [13] 0.004171605 0.004196334 0.004219619 0.004242610 0.004260097 0.004285303 [19] 0.004313235 0.004348734 0.004376361 0.004420200 0.004454166 0.004488522 [25] 0.004531478 0.004570221 0.004608044 0.004645847 0.004679584 0.004719692 [31] 0.004762195 0.004810935 0.004853612 > if (par2 == 0) { + x <- exp(x) + forecast$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] 100.2100 100.3600 100.6200 100.7800 100.9300 100.7000 100.0000 100.2000 [9] 99.6800 99.5600 100.0600 100.5000 99.3000 99.3700 99.2000 98.1100 [17] 97.6000 97.7600 98.0600 98.2500 98.5000 97.3900 98.0900 97.7800 [25] 98.1200 97.5000 97.3000 97.6400 96.8800 97.4000 98.2700 97.9400 [33] 98.6100 98.7200 98.6200 98.5600 98.0600 97.4000 97.7600 97.0500 [41] 97.8500 97.4000 97.2700 97.9300 98.6000 98.7000 98.8800 98.2700 [49] 97.8500 97.7000 96.9700 97.7200 97.6600 99.0000 98.8600 99.5600 [57] 100.1900 100.3700 100.0100 99.6800 99.7800 99.3600 99.2100 99.2600 [65] 99.2600 100.4300 101.5000 102.2700 102.6900 103.4700 104.0200 103.5500 [73] 103.7700 104.1900 103.6400 103.6800 105.3900 106.6100 108.1200 109.2200 [81] 110.1700 110.3100 111.0600 111.1400 111.3900 112.5100 111.2800 112.2200 [89] 113.1900 114.3200 115.3400 116.6100 117.8300 117.7000 118.5100 118.8200 [97] 119.4900 119.5700 120.0000 121.9600 121.4500 123.4100 124.4400 126.2500 [105] 127.4100 127.6300 129.1900 129.8200 130.4500 132.0200 132.7200 132.9600 [113] 135.0600 137.0400 137.8300 139.1700 140.3500 141.0100 141.8900 143.2800 [121] 142.9000 143.3700 145.0300 146.0500 147.3900 149.5800 151.0200 153.5700 [129] 155.6000 157.1800 158.7700 159.9500 161.3400 161.9500 163.3600 165.0000 [137] 166.6500 168.6500 170.2900 172.7000 173.7900 176.4500 177.5800 179.1900 [145] 181.0100 184.0800 185.6300 188.5100 190.1800 192.1900 193.4700 196.7300 [153] 200.3900 203.2400 205.5300 208.2100 208.8800 212.8500 216.4100 216.2300 [161] 219.2700 222.0200 224.8900 230.3700 232.2900 235.5300 236.9200 242.3700 [169] 242.7500 244.1900 247.9400 248.8000 250.1800 251.5500 254.4000 255.7200 [177] 257.6900 258.3700 258.2200 258.5900 257.4500 257.4500 256.7300 257.5890 [185] 258.4618 259.6428 261.1406 263.0623 264.4204 265.6029 266.1472 267.4502 [193] 267.3428 268.1670 269.0059 269.5212 270.3980 271.4541 272.6100 274.1984 [201] 275.2603 276.1564 276.5105 277.5070 277.2944 277.8788 278.4730 278.7901 [209] 279.4132 280.1863 281.0410 282.2573 283.0258 283.6526 283.8232 284.5306 > (perc.se <- (ub-forecast$pred)/1.96/forecast$pred) Time Series: Start = 184 End = 216 Frequency = 1 [1] 0.01173218 0.01588569 0.02042605 0.02544867 0.03015729 0.03496841 [7] 0.03984495 0.04468228 0.04980300 0.05476537 0.06007893 0.06557852 [13] 0.07244428 0.07940916 0.08682815 0.09471735 0.10310443 0.11167266 [19] 0.12055562 0.12952689 0.13929957 0.14871620 0.15910772 0.17000649 [25] 0.18237859 0.19545301 0.20951944 0.22461476 0.24103150 0.25793807 [31] 0.27570386 0.29384341 0.31403681 > postscript(file="/var/www/html/rcomp/tmp/1bwiy1262181865.ps",horizontal=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$pred[i]) / locSD) + } > perf.mape[1] = abs(perf.pe[1]) > perf.mse[1] = abs(perf.se[1]) > for (i in 2:fx) { + perf.mape[i] = perf.mape[i-1] + abs(perf.pe[i]) + perf.mape1[i] = perf.mape[i] / i + perf.mse[i] = perf.mse[i-1] + perf.se[i] + perf.mse1[i] = perf.mse[i] / i + } > perf.rmse = sqrt(perf.mse1) > postscript(file="/var/www/html/rcomp/tmp/21ep91262181865.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(forecast$pred, pch=19, type='b',main='ARIMA Extrapolation Forecast', ylab='Forecast and 95% CI', xlab='time',ylim=c(min(lb),max(ub))) > dum <- forecast$pred > dum[1:par1] <- x[(nx+1):lx] > lines(dum, lty=1) > lines(ub,lty=3) > lines(lb,lty=3) > dev.off() null device 1 > > #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/html/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Univariate ARIMA Extrapolation Forecast',9,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'time',1,header=TRUE) > a<-table.element(a,'Y[t]',1,header=TRUE) > a<-table.element(a,'F[t]',1,header=TRUE) > a<-table.element(a,'95% LB',1,header=TRUE) > a<-table.element(a,'95% UB',1,header=TRUE) > a<-table.element(a,'p-value
(H0: Y[t] = F[t])',1,header=TRUE) > a<-table.element(a,'P(F[t]>Y[t-1])',1,header=TRUE) > a<-table.element(a,'P(F[t]>Y[t-s])',1,header=TRUE) > mylab <- paste('P(F[t]>Y[',nx,sep='') > mylab <- paste(mylab,'])',sep='') > a<-table.element(a,mylab,1,header=TRUE) > a<-table.row.end(a) > for (i in (nx-par5):nx) { + a<-table.row.start(a) + a<-table.element(a,i,header=TRUE) + a<-table.element(a,x[i]) + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.element(a,'-') + a<-table.row.end(a) + } > for (i in 1:fx) { + a<-table.row.start(a) + a<-table.element(a,nx+i,header=TRUE) + a<-table.element(a,round(x[nx+i],4)) + a<-table.element(a,round(forecast$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/www/html/rcomp/tmp/399yj1262181865.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/www/html/rcomp/tmp/4hqn31262181865.tab") > > try(system("convert tmp/1bwiy1262181865.ps tmp/1bwiy1262181865.png",intern=TRUE)) character(0) > try(system("convert tmp/21ep91262181865.ps tmp/21ep91262181865.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 1.565 0.330 2.316