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Data:
1.6 2 2.6 3 2.6 2.9 2.5 2.4 1.5 1.1 0.6 0.9 1.1 1.5 1.7 1.2 0.4 -0.7 -1.4 -1.6 -1.2 -0.4 -0.2 -0.3 -0.5 0 -0.5 0.2 0.7 1.6 2.6 3.3 3.3 3.2 3.5 3.9 4.5 4.6 6.6 7.1 8.9 8.8 8.5 7.6 7.5 7.5 6.1 6.3 8.4 7.1 5.6 4.2 2.1 1.2 0.9 1.4 1.7 1.7 1.9 1.3 -0.7 0.3 0.8 0.9 1.1 2.5 2.7 3.3 4.2 3.8 3.8 3.2 2.9 1.9 1.7 1.6 1.7 1.2 0.7 -0.2 -1.5 -1.2 -1 0 -0.6 0.7 1.3 0.8 1 0.5 0.3 1 1 1.1 1.5 1.5 2 1.7 0.6 1.2 1.5 2.1 3.2 3.9 4.6 4.2 4.4 3.7 3.7 2.8 2.9 3.9 3.1 3 2.8 2.4 2.1 3.1 3 3.1 3.3 3.3 3.8 3.1 3.9 4 4.4 3.7 3.6 3.4 2.8 2.8 2.6 3.3 2.4 1.6 0.7 0 -1.1 -1.2 -1.3 -1.6 -1.3 -1.6 -1.1 -1 0.3 1.2 0.7 1.1 2.1 2.5 2.3 2.3 2.6 3.2 2.2 2.7 2.2 1.4 2.4 2 1.3 1.1 1.4 1.8 1.9 1.6
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R Code
par1 <- as.numeric(par1) (n <- length(x)) (np <- floor(n / par1)) arr <- array(NA,dim=c(par1,np+1)) ari <- array(0,dim=par1) j <- 0 for (i in 1:n) { j = j + 1 ari[j] = ari[j] + 1 arr[j,ari[j]] <- x[i] if (j == par1) j = 0 } ari arr arr.sd <- array(NA,dim=par1) arr.range <- array(NA,dim=par1) arr.iqr <- array(NA,dim=par1) for (j in 1:par1) { arr.sd[j] <- sqrt(var(arr[j,],na.rm=TRUE)) arr.range[j] <- max(arr[j,],na.rm=TRUE) - min(arr[j,],na.rm=TRUE) arr.iqr[j] <- quantile(arr[j,],0.75,na.rm=TRUE) - quantile(arr[j,],0.25,na.rm=TRUE) } overall.sd <- sqrt(var(x)) overall.range <- max(x) - min(x) overall.iqr <- quantile(x,0.75) - quantile(x,0.25) bitmap(file='plot1.png') plot(arr.sd,type='b',ylab='S.D.',main='Standard Deviation Plot',xlab='Periodic Index') mtext(paste('# blocks = ',np)) abline(overall.sd,0) dev.off() bitmap(file='plot2.png') plot(arr.range,type='b',ylab='range',main='Range Plot',xlab='Periodic Index') mtext(paste('# blocks = ',np)) abline(overall.range,0) dev.off() bitmap(file='plot3.png') plot(arr.iqr,type='b',ylab='IQR',main='Interquartile Range Plot',xlab='Periodic Index') mtext(paste('# blocks = ',np)) abline(overall.iqr,0) dev.off() bitmap(file='plot4.png') z <- data.frame(t(arr)) names(z) <- c(1:par1) (boxplot(z,notch=TRUE,col='grey',xlab='Periodic Index',ylab='Value',main='Notched Box Plots - Periodic Subseries')) dev.off() bitmap(file='plot5.png') z <- data.frame(arr) names(z) <- c(1:np) (boxplot(z,notch=TRUE,col='grey',xlab='Block Index',ylab='Value',main='Notched Box Plots - Sequential Blocks')) dev.off() bitmap(file='plot6.png') z <- data.frame(cbind(arr.sd,arr.range,arr.iqr)) names(z) <- list('S.D.','Range','IQR') (boxplot(z,notch=TRUE,col='grey',ylab='Overall Variability',main='Notched Box Plots')) dev.off()
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