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Type 'q()' to quit R. > x <- c(1954,2302,3054,2414,2226,2725,2589,3470,2400,3180,4009,3924,2072,2434,2956,2828,2687,2629,3150,4119,3030,3055,3821,4001,2529,2472,3134,2789,2758,2993,3282,3437,2804,3076,3782,3889,2271,2452,3084,2522,2769,3438,2839,3746,2632,2851,3871,3618,2389,2344,2678,2492,2858,2246,2800,3869,3007,3023,3907,4209) > par10 = 'FALSE' > par9 = '0' > par8 = '2' > par7 = '0' > par6 = '1' > par5 = '12' > par4 = '1' > par3 = '0' > par2 = '1' > par1 = '12' > par10 <- 'FALSE' > par9 <- '0' > par8 <- '2' > par7 <- '0' > par6 <- '1' > par5 <- '12' > par4 <- '1' > par3 <- '0' > par2 <- '1' > par1 <- '12' > #'GNU S' R Code compiled by R2WASP v. 1.2.327 () > #Author: root > #To cite this work: Wessa P., (2013), ARIMA Forecasting (v1.0.9) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_arimaforecasting.wasp/ > #Source of accompanying publication: > # > 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 sar1 sar2 0.3367 -0.5858 -0.5474 s.e. 0.1771 0.2289 0.1989 sigma^2 estimated as 55347: log likelihood = -252.93, aic = 513.86 > (forecast <- predict(arima.out,par1)) $pred Time Series: Start = 49 End = 60 Frequency = 1 [1] 2072.836 2409.542 3004.616 2695.968 2722.417 2977.646 3026.096 3938.279 [9] 2856.450 2971.298 3840.213 3838.053 $se Time Series: Start = 49 End = 60 Frequency = 1 [1] 235.2591 248.2327 249.6606 249.8219 249.8401 249.8422 249.8424 249.8425 [9] 249.8425 249.8425 249.8425 249.8425 > (lb <- forecast$pred - 1.96 * forecast$se) Time Series: Start = 49 End = 60 Frequency = 1 [1] 1611.728 1923.006 2515.281 2206.317 2232.731 2487.956 2536.404 3448.587 [9] 2366.759 2481.607 3350.522 3348.362 > (ub <- forecast$pred + 1.96 * forecast$se) Time Series: Start = 49 End = 60 Frequency = 1 [1] 2533.944 2896.078 3493.950 3185.619 3212.104 3467.337 3515.787 4427.970 [9] 3346.142 3460.989 4329.904 4327.745 > if (par2 == 0) { + x <- exp(x) + forecast$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] 1954.000 2302.000 3054.000 2414.000 2226.000 2725.000 2589.000 3470.000 [9] 2400.000 3180.000 4009.000 3924.000 2072.000 2434.000 2956.000 2828.000 [17] 2687.000 2629.000 3150.000 4119.000 3030.000 3055.000 3821.000 4001.000 [25] 2529.000 2472.000 3134.000 2789.000 2758.000 2993.000 3282.000 3437.000 [33] 2804.000 3076.000 3782.000 3889.000 2271.000 2452.000 3084.000 2522.000 [41] 2769.000 3438.000 2839.000 3746.000 2632.000 2851.000 3871.000 3618.000 [49] 2072.836 2409.542 3004.616 2695.968 2722.417 2977.646 3026.096 3938.279 [57] 2856.450 2971.298 3840.213 3838.053 > (perc.se <- (ub-forecast$pred)/1.96/forecast$pred) Time Series: Start = 49 End = 60 Frequency = 1 [1] 0.11349623 0.10302070 0.08309234 0.09266499 0.09177143 0.08390594 [7] 0.08256264 0.06343951 0.08746606 0.08408530 0.06505953 0.06509614 > postscript(file="/var/wessaorg/rcomp/tmp/1f0os1387113718.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$pred , lwd=2 , col ='white') > box() > par(opar) > dev.off() null device 1 > prob.dec <- array(NA, dim=fx) > prob.sdec <- array(NA, dim=fx) > prob.ldec <- array(NA, dim=fx) > prob.pval <- array(NA, dim=fx) > perf.pe <- array(0, dim=fx) > perf.spe <- array(0, dim=fx) > perf.scalederr <- array(0, dim=fx) > perf.mase <- array(0, dim=fx) > perf.mase1 <- array(0, dim=fx) > perf.mape <- array(0, dim=fx) > perf.smape <- array(0, dim=fx) > perf.mape1 <- array(0, dim=fx) > perf.smape1 <- array(0,dim=fx) > perf.se <- array(0, dim=fx) > perf.mse <- array(0, dim=fx) > perf.mse1 <- array(0, dim=fx) > perf.rmse <- array(0, dim=fx) > perf.scaleddenom <- 0 > for (i in 2:fx) { + perf.scaleddenom = perf.scaleddenom + abs(x[nx+i] - x[nx+i-1]) + } > perf.scaleddenom = perf.scaleddenom / (fx-1) > for (i in 1:fx) { + locSD <- (ub[i] - forecast$pred[i]) / 1.96 + perf.scalederr[i] = (x[nx+i] - forecast$pred[i]) / perf.scaleddenom + perf.pe[i] = (x[nx+i] - forecast$pred[i]) / x[nx+i] + perf.spe[i] = 2*(x[nx+i] - forecast$pred[i]) / (x[nx+i] + forecast$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$pred[i]) / locSD) + } > perf.mape[1] = abs(perf.pe[1]) > perf.smape[1] = abs(perf.spe[1]) > perf.mape1[1] = perf.mape[1] > perf.smape1[1] = perf.smape[1] > perf.mse[1] = perf.se[1] > perf.mase[1] = abs(perf.scalederr[1]) > perf.mase1[1] = perf.mase[1] > for (i in 2:fx) { + perf.mape[i] = perf.mape[i-1] + abs(perf.pe[i]) + perf.mape1[i] = perf.mape[i] / i + perf.smape[i] = perf.smape[i-1] + abs(perf.spe[i]) + perf.smape1[i] = perf.smape[i] / i + perf.mse[i] = perf.mse[i-1] + perf.se[i] + perf.mse1[i] = perf.mse[i] / i + perf.mase[i] = perf.mase[i-1] + abs(perf.scalederr[i]) + perf.mase1[i] = perf.mase[i] / i + } > perf.rmse = sqrt(perf.mse1) > postscript(file="/var/wessaorg/rcomp/tmp/2l4qm1387113718.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(forecast$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/3svtv1387113718.tab") > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Univariate ARIMA Extrapolation Forecast Performance',10,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,'sMAPE',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.element(a,'ScaledE',1,header=TRUE) > a<-table.element(a,'MASE',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.smape1[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.element(a,round(perf.scalederr[i],4)) + a<-table.element(a,round(perf.mase1[i],4)) + a<-table.row.end(a) + } > a<-table.end(a) > table.save(a,file="/var/wessaorg/rcomp/tmp/45ci71387113719.tab") > > try(system("convert tmp/1f0os1387113718.ps tmp/1f0os1387113718.png",intern=TRUE)) character(0) > try(system("convert tmp/2l4qm1387113718.ps tmp/2l4qm1387113718.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.500 0.413 2.885