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Type 'q()' to quit R. > x <- array(list(-1.2 + ,23.6 + ,0.2 + ,-1.9 + ,-1.6 + ,-4.2 + ,-2.2 + ,-2.4 + ,25.7 + ,-1.2 + ,0.2 + ,-1.9 + ,-1.6 + ,-4.2 + ,0.8 + ,32.5 + ,-2.4 + ,-1.2 + ,0.2 + ,-1.9 + ,-1.6 + ,-0.1 + ,33.5 + ,0.8 + ,-2.4 + ,-1.2 + ,0.2 + ,-1.9 + ,-1.5 + ,34.5 + ,-0.1 + ,0.8 + ,-2.4 + ,-1.2 + ,0.2 + ,-4.4 + ,27.9 + ,-1.5 + ,-0.1 + ,0.8 + ,-2.4 + ,-1.2 + ,-4.2 + ,45.3 + ,-4.4 + ,-1.5 + ,-0.1 + ,0.8 + ,-2.4 + ,3.5 + ,40.8 + ,-4.2 + ,-4.4 + ,-1.5 + ,-0.1 + ,0.8 + ,10 + ,58.5 + ,3.5 + ,-4.2 + ,-4.4 + ,-1.5 + ,-0.1 + ,8.6 + ,32.5 + ,10 + ,3.5 + ,-4.2 + ,-4.4 + ,-1.5 + ,9.5 + ,35.5 + ,8.6 + ,10 + ,3.5 + ,-4.2 + ,-4.4 + ,9.9 + ,46.7 + ,9.5 + ,8.6 + ,10 + ,3.5 + ,-4.2 + ,10.4 + ,53.2 + ,9.9 + ,9.5 + ,8.6 + ,10 + ,3.5 + ,16 + ,36.1 + ,10.4 + ,9.9 + ,9.5 + ,8.6 + ,10 + ,12.7 + ,54 + ,16 + ,10.4 + ,9.9 + ,9.5 + ,8.6 + ,10.2 + ,58.1 + ,12.7 + ,16 + ,10.4 + ,9.9 + ,9.5 + ,8.9 + ,41.8 + ,10.2 + ,12.7 + ,16 + ,10.4 + ,9.9 + ,12.6 + ,43.1 + ,8.9 + ,10.2 + ,12.7 + ,16 + ,10.4 + ,13.6 + ,76 + ,12.6 + ,8.9 + ,10.2 + ,12.7 + ,16 + ,14.8 + ,42.8 + ,13.6 + ,12.6 + ,8.9 + ,10.2 + ,12.7 + ,9.5 + ,41 + ,14.8 + ,13.6 + ,12.6 + ,8.9 + ,10.2 + ,13.7 + ,61.4 + ,9.5 + ,14.8 + ,13.6 + ,12.6 + ,8.9 + ,17 + ,34.2 + ,13.7 + ,9.5 + ,14.8 + ,13.6 + ,12.6 + ,14.7 + ,53.8 + ,17 + ,13.7 + ,9.5 + ,14.8 + ,13.6 + ,17.4 + ,80.7 + ,14.7 + ,17 + ,13.7 + ,9.5 + ,14.8 + ,9 + ,79.5 + ,17.4 + ,14.7 + ,17 + ,13.7 + ,9.5 + ,9.1 + ,96.5 + ,9 + ,17.4 + ,14.7 + ,17 + ,13.7 + ,12.2 + ,108.3 + ,9.1 + ,9 + ,17.4 + ,14.7 + ,17 + ,15.9 + ,100.1 + ,12.2 + ,9.1 + ,9 + ,17.4 + ,14.7 + ,12.9 + ,108.5 + ,15.9 + ,12.2 + ,9.1 + ,9 + ,17.4 + ,10.9 + ,127.4 + ,12.9 + ,15.9 + ,12.2 + ,9.1 + ,9 + ,10.6 + ,86.5 + ,10.9 + ,12.9 + ,15.9 + ,12.2 + ,9.1 + ,13.2 + ,71.4 + ,10.6 + ,10.9 + ,12.9 + ,15.9 + ,12.2 + ,9.6 + ,88.2 + ,13.2 + ,10.6 + ,10.9 + ,12.9 + ,15.9 + ,6.4 + ,135.6 + ,9.6 + ,13.2 + ,10.6 + ,10.9 + ,12.9 + ,5.8 + ,70.5 + ,6.4 + ,9.6 + ,13.2 + ,10.6 + ,10.9 + ,-1 + ,87.5 + ,5.8 + ,6.4 + ,9.6 + ,13.2 + ,10.6 + ,-0.2 + ,73.3 + ,-1 + ,5.8 + ,6.4 + ,9.6 + ,13.2 + ,2.7 + ,92.2 + ,-0.2 + ,-1 + ,5.8 + ,6.4 + ,9.6 + ,3.6 + ,61.1 + ,2.7 + ,-0.2 + ,-1 + ,5.8 + ,6.4 + ,-0.9 + ,45.7 + ,3.6 + ,2.7 + ,-0.2 + ,-1 + ,5.8 + ,0.3 + ,30.5 + ,-0.9 + ,3.6 + ,2.7 + ,-0.2 + ,-1 + ,-1.1 + ,34.8 + ,0.3 + ,-0.9 + ,3.6 + ,2.7 + ,-0.2 + ,-2.5 + ,29.2 + ,-1.1 + ,0.3 + ,-0.9 + ,3.6 + ,2.7 + ,-3.4 + ,56.7 + ,-2.5 + ,-1.1 + ,0.3 + ,-0.9 + ,3.6 + ,-3.5 + ,67.1 + ,-3.4 + ,-2.5 + ,-1.1 + ,0.3 + ,-0.9 + ,-3.9 + ,41.8 + ,-3.5 + ,-3.4 + ,-2.5 + ,-1.1 + ,0.3 + ,-4.6 + ,46.8 + ,-3.9 + ,-3.5 + ,-3.4 + ,-2.5 + ,-1.1 + ,-0.1 + ,50.1 + ,-4.6 + ,-3.9 + ,-3.5 + ,-3.4 + ,-2.5 + ,4.3 + ,81.9 + ,-0.1 + ,-4.6 + ,-3.9 + ,-3.5 + ,-3.4 + ,10.2 + ,115.8 + ,4.3 + ,-0.1 + ,-4.6 + ,-3.9 + ,-3.5 + ,8.7 + ,102.5 + ,10.2 + ,4.3 + ,-0.1 + ,-4.6 + ,-3.9 + ,13.3 + ,106.6 + ,8.7 + ,10.2 + ,4.3 + ,-0.1 + ,-4.6 + ,15 + ,101.4 + ,13.3 + ,8.7 + ,10.2 + ,4.3 + ,-0.1 + ,20.7 + ,136.1 + ,15 + ,13.3 + ,8.7 + ,10.2 + ,4.3 + ,20.7 + ,143.4 + ,20.7 + ,15 + ,13.3 + ,8.7 + ,10.2 + ,26.4 + ,127.5 + ,20.7 + ,20.7 + ,15 + ,13.3 + ,8.7 + ,31.2 + ,113.8 + ,26.4 + ,20.7 + ,20.7 + ,15 + ,13.3 + ,31.4 + ,75.3 + ,31.2 + ,26.4 + ,20.7 + ,20.7 + ,15 + ,26.6 + ,98.5 + ,31.4 + ,31.2 + ,26.4 + ,20.7 + ,20.7 + ,26.6 + ,113.7 + ,26.6 + ,31.4 + ,31.2 + ,26.4 + ,20.7 + ,19.2 + ,103.7 + ,26.6 + ,26.6 + ,31.4 + ,31.2 + ,26.4 + ,6.5 + ,73.9 + ,19.2 + ,26.6 + ,26.6 + ,31.4 + ,31.2 + ,3.1 + ,52.5 + ,6.5 + ,19.2 + ,26.6 + ,26.6 + ,31.4 + ,-0.2 + ,63.9 + ,3.1 + ,6.5 + ,19.2 + ,26.6 + ,26.6 + ,-4 + ,44.9 + ,-0.2 + ,3.1 + ,6.5 + ,19.2 + ,26.6 + ,-12.6 + ,31.3 + ,-4 + ,-0.2 + ,3.1 + ,6.5 + ,19.2 + ,-13 + ,24.9 + ,-12.6 + ,-4 + ,-0.2 + ,3.1 + ,6.5 + ,-17.6 + ,22.8 + ,-13 + ,-12.6 + ,-4 + ,-0.2 + ,3.1 + ,-21.7 + ,24.8 + ,-17.6 + ,-13 + ,-12.6 + ,-4 + ,-0.2 + ,-23.2 + ,22.8 + ,-21.7 + ,-17.6 + ,-13 + ,-12.6 + ,-4 + ,-16.8 + ,20.9 + ,-23.2 + ,-21.7 + ,-17.6 + ,-13 + ,-12.6 + ,-19.8 + ,21.5 + ,-16.8 + ,-23.2 + ,-21.7 + ,-17.6 + ,-13) + ,dim=c(7 + ,73) + ,dimnames=list(c('Y' + ,'X' + ,'Y1' + ,'Y2' + ,'Y3' + ,'Y4' + ,'Y5') + ,1:73)) > y <- array(NA,dim=c(7,73),dimnames=list(c('Y','X','Y1','Y2','Y3','Y4','Y5'),1:73)) > for (i in 1:dim(x)[1]) + { + for (j in 1:dim(x)[2]) + { + y[i,j] <- as.numeric(x[i,j]) + } + } > par3 = 'Linear Trend' > par2 = 'Include Monthly Dummies' > par1 = '1' > #'GNU S' R Code compiled by R2WASP v. 1.0.44 () > #Author: Prof. Dr. P. Wessa > #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > library(lattice) > library(lmtest) Loading required package: zoo Attaching package: 'zoo' The following object(s) are masked from package:base : as.Date.numeric > n25 <- 25 #minimum number of obs. for Goldfeld-Quandt test > par1 <- as.numeric(par1) > x <- t(y) > k <- length(x[1,]) > n <- length(x[,1]) > x1 <- cbind(x[,par1], x[,1:k!=par1]) > mycolnames <- c(colnames(x)[par1], colnames(x)[1:k!=par1]) > colnames(x1) <- mycolnames #colnames(x)[par1] > x <- x1 > if (par3 == 'First Differences'){ + x2 <- array(0, dim=c(n-1,k), dimnames=list(1:(n-1), paste('(1-B)',colnames(x),sep=''))) + for (i in 1:n-1) { + for (j in 1:k) { + x2[i,j] <- x[i+1,j] - x[i,j] + } + } + x <- x2 + } > if (par2 == 'Include Monthly Dummies'){ + x2 <- array(0, dim=c(n,11), dimnames=list(1:n, paste('M', seq(1:11), sep =''))) + for (i in 1:11){ + x2[seq(i,n,12),i] <- 1 + } + x <- cbind(x, x2) + } > if (par2 == 'Include Quarterly Dummies'){ + x2 <- array(0, dim=c(n,3), dimnames=list(1:n, paste('Q', seq(1:3), sep =''))) + for (i in 1:3){ + x2[seq(i,n,4),i] <- 1 + } + x <- cbind(x, x2) + } > k <- length(x[1,]) > if (par3 == 'Linear Trend'){ + x <- cbind(x, c(1:n)) + colnames(x)[k+1] <- 't' + } > x Y X Y1 Y2 Y3 Y4 Y5 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 1 -1.2 23.6 0.2 -1.9 -1.6 -4.2 -2.2 1 0 0 0 0 0 0 0 0 0 0 2 -2.4 25.7 -1.2 0.2 -1.9 -1.6 -4.2 0 1 0 0 0 0 0 0 0 0 0 3 0.8 32.5 -2.4 -1.2 0.2 -1.9 -1.6 0 0 1 0 0 0 0 0 0 0 0 4 -0.1 33.5 0.8 -2.4 -1.2 0.2 -1.9 0 0 0 1 0 0 0 0 0 0 0 5 -1.5 34.5 -0.1 0.8 -2.4 -1.2 0.2 0 0 0 0 1 0 0 0 0 0 0 6 -4.4 27.9 -1.5 -0.1 0.8 -2.4 -1.2 0 0 0 0 0 1 0 0 0 0 0 7 -4.2 45.3 -4.4 -1.5 -0.1 0.8 -2.4 0 0 0 0 0 0 1 0 0 0 0 8 3.5 40.8 -4.2 -4.4 -1.5 -0.1 0.8 0 0 0 0 0 0 0 1 0 0 0 9 10.0 58.5 3.5 -4.2 -4.4 -1.5 -0.1 0 0 0 0 0 0 0 0 1 0 0 10 8.6 32.5 10.0 3.5 -4.2 -4.4 -1.5 0 0 0 0 0 0 0 0 0 1 0 11 9.5 35.5 8.6 10.0 3.5 -4.2 -4.4 0 0 0 0 0 0 0 0 0 0 1 12 9.9 46.7 9.5 8.6 10.0 3.5 -4.2 0 0 0 0 0 0 0 0 0 0 0 13 10.4 53.2 9.9 9.5 8.6 10.0 3.5 1 0 0 0 0 0 0 0 0 0 0 14 16.0 36.1 10.4 9.9 9.5 8.6 10.0 0 1 0 0 0 0 0 0 0 0 0 15 12.7 54.0 16.0 10.4 9.9 9.5 8.6 0 0 1 0 0 0 0 0 0 0 0 16 10.2 58.1 12.7 16.0 10.4 9.9 9.5 0 0 0 1 0 0 0 0 0 0 0 17 8.9 41.8 10.2 12.7 16.0 10.4 9.9 0 0 0 0 1 0 0 0 0 0 0 18 12.6 43.1 8.9 10.2 12.7 16.0 10.4 0 0 0 0 0 1 0 0 0 0 0 19 13.6 76.0 12.6 8.9 10.2 12.7 16.0 0 0 0 0 0 0 1 0 0 0 0 20 14.8 42.8 13.6 12.6 8.9 10.2 12.7 0 0 0 0 0 0 0 1 0 0 0 21 9.5 41.0 14.8 13.6 12.6 8.9 10.2 0 0 0 0 0 0 0 0 1 0 0 22 13.7 61.4 9.5 14.8 13.6 12.6 8.9 0 0 0 0 0 0 0 0 0 1 0 23 17.0 34.2 13.7 9.5 14.8 13.6 12.6 0 0 0 0 0 0 0 0 0 0 1 24 14.7 53.8 17.0 13.7 9.5 14.8 13.6 0 0 0 0 0 0 0 0 0 0 0 25 17.4 80.7 14.7 17.0 13.7 9.5 14.8 1 0 0 0 0 0 0 0 0 0 0 26 9.0 79.5 17.4 14.7 17.0 13.7 9.5 0 1 0 0 0 0 0 0 0 0 0 27 9.1 96.5 9.0 17.4 14.7 17.0 13.7 0 0 1 0 0 0 0 0 0 0 0 28 12.2 108.3 9.1 9.0 17.4 14.7 17.0 0 0 0 1 0 0 0 0 0 0 0 29 15.9 100.1 12.2 9.1 9.0 17.4 14.7 0 0 0 0 1 0 0 0 0 0 0 30 12.9 108.5 15.9 12.2 9.1 9.0 17.4 0 0 0 0 0 1 0 0 0 0 0 31 10.9 127.4 12.9 15.9 12.2 9.1 9.0 0 0 0 0 0 0 1 0 0 0 0 32 10.6 86.5 10.9 12.9 15.9 12.2 9.1 0 0 0 0 0 0 0 1 0 0 0 33 13.2 71.4 10.6 10.9 12.9 15.9 12.2 0 0 0 0 0 0 0 0 1 0 0 34 9.6 88.2 13.2 10.6 10.9 12.9 15.9 0 0 0 0 0 0 0 0 0 1 0 35 6.4 135.6 9.6 13.2 10.6 10.9 12.9 0 0 0 0 0 0 0 0 0 0 1 36 5.8 70.5 6.4 9.6 13.2 10.6 10.9 0 0 0 0 0 0 0 0 0 0 0 37 -1.0 87.5 5.8 6.4 9.6 13.2 10.6 1 0 0 0 0 0 0 0 0 0 0 38 -0.2 73.3 -1.0 5.8 6.4 9.6 13.2 0 1 0 0 0 0 0 0 0 0 0 39 2.7 92.2 -0.2 -1.0 5.8 6.4 9.6 0 0 1 0 0 0 0 0 0 0 0 40 3.6 61.1 2.7 -0.2 -1.0 5.8 6.4 0 0 0 1 0 0 0 0 0 0 0 41 -0.9 45.7 3.6 2.7 -0.2 -1.0 5.8 0 0 0 0 1 0 0 0 0 0 0 42 0.3 30.5 -0.9 3.6 2.7 -0.2 -1.0 0 0 0 0 0 1 0 0 0 0 0 43 -1.1 34.8 0.3 -0.9 3.6 2.7 -0.2 0 0 0 0 0 0 1 0 0 0 0 44 -2.5 29.2 -1.1 0.3 -0.9 3.6 2.7 0 0 0 0 0 0 0 1 0 0 0 45 -3.4 56.7 -2.5 -1.1 0.3 -0.9 3.6 0 0 0 0 0 0 0 0 1 0 0 46 -3.5 67.1 -3.4 -2.5 -1.1 0.3 -0.9 0 0 0 0 0 0 0 0 0 1 0 47 -3.9 41.8 -3.5 -3.4 -2.5 -1.1 0.3 0 0 0 0 0 0 0 0 0 0 1 48 -4.6 46.8 -3.9 -3.5 -3.4 -2.5 -1.1 0 0 0 0 0 0 0 0 0 0 0 49 -0.1 50.1 -4.6 -3.9 -3.5 -3.4 -2.5 1 0 0 0 0 0 0 0 0 0 0 50 4.3 81.9 -0.1 -4.6 -3.9 -3.5 -3.4 0 1 0 0 0 0 0 0 0 0 0 51 10.2 115.8 4.3 -0.1 -4.6 -3.9 -3.5 0 0 1 0 0 0 0 0 0 0 0 52 8.7 102.5 10.2 4.3 -0.1 -4.6 -3.9 0 0 0 1 0 0 0 0 0 0 0 53 13.3 106.6 8.7 10.2 4.3 -0.1 -4.6 0 0 0 0 1 0 0 0 0 0 0 54 15.0 101.4 13.3 8.7 10.2 4.3 -0.1 0 0 0 0 0 1 0 0 0 0 0 55 20.7 136.1 15.0 13.3 8.7 10.2 4.3 0 0 0 0 0 0 1 0 0 0 0 56 20.7 143.4 20.7 15.0 13.3 8.7 10.2 0 0 0 0 0 0 0 1 0 0 0 57 26.4 127.5 20.7 20.7 15.0 13.3 8.7 0 0 0 0 0 0 0 0 1 0 0 58 31.2 113.8 26.4 20.7 20.7 15.0 13.3 0 0 0 0 0 0 0 0 0 1 0 59 31.4 75.3 31.2 26.4 20.7 20.7 15.0 0 0 0 0 0 0 0 0 0 0 1 60 26.6 98.5 31.4 31.2 26.4 20.7 20.7 0 0 0 0 0 0 0 0 0 0 0 61 26.6 113.7 26.6 31.4 31.2 26.4 20.7 1 0 0 0 0 0 0 0 0 0 0 62 19.2 103.7 26.6 26.6 31.4 31.2 26.4 0 1 0 0 0 0 0 0 0 0 0 63 6.5 73.9 19.2 26.6 26.6 31.4 31.2 0 0 1 0 0 0 0 0 0 0 0 64 3.1 52.5 6.5 19.2 26.6 26.6 31.4 0 0 0 1 0 0 0 0 0 0 0 65 -0.2 63.9 3.1 6.5 19.2 26.6 26.6 0 0 0 0 1 0 0 0 0 0 0 66 -4.0 44.9 -0.2 3.1 6.5 19.2 26.6 0 0 0 0 0 1 0 0 0 0 0 67 -12.6 31.3 -4.0 -0.2 3.1 6.5 19.2 0 0 0 0 0 0 1 0 0 0 0 68 -13.0 24.9 -12.6 -4.0 -0.2 3.1 6.5 0 0 0 0 0 0 0 1 0 0 0 69 -17.6 22.8 -13.0 -12.6 -4.0 -0.2 3.1 0 0 0 0 0 0 0 0 1 0 0 70 -21.7 24.8 -17.6 -13.0 -12.6 -4.0 -0.2 0 0 0 0 0 0 0 0 0 1 0 71 -23.2 22.8 -21.7 -17.6 -13.0 -12.6 -4.0 0 0 0 0 0 0 0 0 0 0 1 72 -16.8 20.9 -23.2 -21.7 -17.6 -13.0 -12.6 0 0 0 0 0 0 0 0 0 0 0 73 -19.8 21.5 -16.8 -23.2 -21.7 -17.6 -13.0 1 0 0 0 0 0 0 0 0 0 0 t 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 58 58 59 59 60 60 61 61 62 62 63 63 64 64 65 65 66 66 67 67 68 68 69 69 70 70 71 71 72 72 73 73 > k <- length(x[1,]) > df <- as.data.frame(x) > (mylm <- lm(df)) Call: lm(formula = df) Coefficients: (Intercept) X Y1 Y2 Y3 Y4 -0.322809 0.051806 0.975171 -0.116024 0.008858 0.247107 Y5 M1 M2 M3 M4 M5 -0.332969 -0.688673 -1.091916 -0.908140 -0.371569 -0.164834 M6 M7 M8 M9 M10 M11 0.185268 -1.151771 1.479240 0.755289 0.176543 0.611098 t -0.045575 > (mysum <- summary(mylm)) Call: lm(formula = df) Residuals: Min 1Q Median 3Q Max -8.1541 -2.0720 -0.6312 2.6039 8.3099 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -0.322809 1.850837 -0.174 0.8622 X 0.051806 0.019755 2.622 0.0113 * Y1 0.975171 0.129620 7.523 5.83e-10 *** Y2 -0.116024 0.188871 -0.614 0.5416 Y3 0.008858 0.191860 0.046 0.9633 Y4 0.247107 0.190309 1.298 0.1997 Y5 -0.332969 0.132367 -2.516 0.0149 * M1 -0.688673 2.086495 -0.330 0.7426 M2 -1.091916 2.193078 -0.498 0.6206 M3 -0.908140 2.253233 -0.403 0.6885 M4 -0.371569 2.226363 -0.167 0.8681 M5 -0.164834 2.203134 -0.075 0.9406 M6 0.185268 2.192780 0.084 0.9330 M7 -1.151771 2.232651 -0.516 0.6080 M8 1.479240 2.182647 0.678 0.5008 M9 0.755289 2.181834 0.346 0.7306 M10 0.176543 2.183237 0.081 0.9358 M11 0.611098 2.165320 0.282 0.7789 t -0.045575 0.025781 -1.768 0.0828 . --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 3.718 on 54 degrees of freedom Multiple R-squared: 0.9243, Adjusted R-squared: 0.899 F-statistic: 36.62 on 18 and 54 DF, p-value: < 2.2e-16 > if (n > n25) { + kp3 <- k + 3 + nmkm3 <- n - k - 3 + gqarr <- array(NA, dim=c(nmkm3-kp3+1,3)) + numgqtests <- 0 + numsignificant1 <- 0 + numsignificant5 <- 0 + numsignificant10 <- 0 + for (mypoint in kp3:nmkm3) { + j <- 0 + numgqtests <- numgqtests + 1 + for (myalt in c('greater', 'two.sided', 'less')) { + j <- j + 1 + gqarr[mypoint-kp3+1,j] <- gqtest(mylm, point=mypoint, alternative=myalt)$p.value + } + if (gqarr[mypoint-kp3+1,2] < 0.01) numsignificant1 <- numsignificant1 + 1 + if (gqarr[mypoint-kp3+1,2] < 0.05) numsignificant5 <- numsignificant5 + 1 + if (gqarr[mypoint-kp3+1,2] < 0.10) numsignificant10 <- numsignificant10 + 1 + } + gqarr + } [,1] [,2] [,3] [1,] 0.4128187 0.8256374 0.5871813 [2,] 0.5890035 0.8219930 0.4109965 [3,] 0.4727718 0.9455436 0.5272282 [4,] 0.4056864 0.8113729 0.5943136 [5,] 0.6826569 0.6346862 0.3173431 [6,] 0.5846655 0.8306690 0.4153345 [7,] 0.4886194 0.9772387 0.5113806 [8,] 0.4916989 0.9833978 0.5083011 [9,] 0.4109001 0.8218002 0.5890999 [10,] 0.3744093 0.7488186 0.6255907 [11,] 0.2854089 0.5708179 0.7145911 [12,] 0.2651553 0.5303107 0.7348447 [13,] 0.2631747 0.5263495 0.7368253 [14,] 0.4857648 0.9715295 0.5142352 [15,] 0.4057919 0.8115838 0.5942081 [16,] 0.5926170 0.8147659 0.4073830 [17,] 0.5478725 0.9042550 0.4521275 [18,] 0.5556259 0.8887482 0.4443741 [19,] 0.5071973 0.9856055 0.4928027 [20,] 0.4077720 0.8155441 0.5922280 [21,] 0.3665903 0.7331807 0.6334097 [22,] 0.2745262 0.5490523 0.7254738 [23,] 0.2080078 0.4160156 0.7919922 [24,] 0.1410025 0.2820050 0.8589975 [25,] 0.1191228 0.2382455 0.8808772 [26,] 0.0922579 0.1845158 0.9077421 [27,] 0.1246828 0.2493655 0.8753172 [28,] 0.1447455 0.2894909 0.8552545 [29,] 0.1073833 0.2147665 0.8926167 [30,] 0.2378730 0.4757460 0.7621270 > postscript(file="/var/www/html/rcomp/tmp/1odto1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(x[,1], type='l', main='Actuals and Interpolation', ylab='value of Actuals and Interpolation (dots)', xlab='time or index') > points(x[,1]-mysum$resid) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/2t43g1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(mysum$resid, type='b', pch=19, main='Residuals', ylab='value of Residuals', xlab='time or index') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/3a4c31261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(mysum$resid, main='Residual Histogram', xlab='values of Residuals') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/4a0qq1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > densityplot(~mysum$resid,col='black',main='Residual Density Plot', xlab='values of Residuals') > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/50edm1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqnorm(mysum$resid, main='Residual Normal Q-Q Plot') > qqline(mysum$resid) > grid() > dev.off() null device 1 > (myerror <- as.ts(mysum$resid)) Time Series: Start = 1 End = 73 Frequency = 1 1 2 3 4 5 6 -1.46155813 -2.01840280 2.62013639 -2.68885396 -1.99707458 -3.79683898 7 8 9 10 11 12 -1.63242235 4.48406528 3.42298079 -1.20228117 0.18947528 -2.26787385 13 14 15 16 17 18 -0.68593939 8.30986496 -2.15070393 -1.28990762 0.10844759 3.22615439 19 20 21 22 23 24 2.84761078 2.16674142 -3.86862198 3.85047284 4.43422704 -0.87187168 25 26 27 28 29 30 5.46658709 -8.15406149 0.03512474 2.60392317 2.19753977 -1.81678727 31 32 33 34 35 36 -2.90762167 -2.83742645 1.51936084 -2.90588926 -5.64024041 -0.12296662 37 38 39 40 41 42 -7.56607528 2.76358508 2.57451580 1.00251361 -1.92855818 1.75949198 43 44 45 46 47 48 -0.63117884 -2.03895507 -0.99027025 -2.07200211 -0.79927632 -0.83540349 49 50 51 52 53 54 4.62121951 3.08169906 3.39037562 -3.15467460 1.83502328 -0.80110279 55 56 57 58 59 60 3.38018288 -2.65023756 3.65314003 5.28981835 2.23343447 -0.90248067 61 62 63 64 65 66 2.29731028 -3.98268481 -6.46944861 3.52699940 -0.21537788 1.42908267 67 68 69 70 71 72 -1.05657081 0.87581238 -3.73658942 -2.96011865 -0.41762005 5.00059630 73 -2.67154408 > postscript(file="/var/www/html/rcomp/tmp/6u1i81261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > dum <- cbind(lag(myerror,k=1),myerror) > dum Time Series: Start = 0 End = 73 Frequency = 1 lag(myerror, k = 1) myerror 0 -1.46155813 NA 1 -2.01840280 -1.46155813 2 2.62013639 -2.01840280 3 -2.68885396 2.62013639 4 -1.99707458 -2.68885396 5 -3.79683898 -1.99707458 6 -1.63242235 -3.79683898 7 4.48406528 -1.63242235 8 3.42298079 4.48406528 9 -1.20228117 3.42298079 10 0.18947528 -1.20228117 11 -2.26787385 0.18947528 12 -0.68593939 -2.26787385 13 8.30986496 -0.68593939 14 -2.15070393 8.30986496 15 -1.28990762 -2.15070393 16 0.10844759 -1.28990762 17 3.22615439 0.10844759 18 2.84761078 3.22615439 19 2.16674142 2.84761078 20 -3.86862198 2.16674142 21 3.85047284 -3.86862198 22 4.43422704 3.85047284 23 -0.87187168 4.43422704 24 5.46658709 -0.87187168 25 -8.15406149 5.46658709 26 0.03512474 -8.15406149 27 2.60392317 0.03512474 28 2.19753977 2.60392317 29 -1.81678727 2.19753977 30 -2.90762167 -1.81678727 31 -2.83742645 -2.90762167 32 1.51936084 -2.83742645 33 -2.90588926 1.51936084 34 -5.64024041 -2.90588926 35 -0.12296662 -5.64024041 36 -7.56607528 -0.12296662 37 2.76358508 -7.56607528 38 2.57451580 2.76358508 39 1.00251361 2.57451580 40 -1.92855818 1.00251361 41 1.75949198 -1.92855818 42 -0.63117884 1.75949198 43 -2.03895507 -0.63117884 44 -0.99027025 -2.03895507 45 -2.07200211 -0.99027025 46 -0.79927632 -2.07200211 47 -0.83540349 -0.79927632 48 4.62121951 -0.83540349 49 3.08169906 4.62121951 50 3.39037562 3.08169906 51 -3.15467460 3.39037562 52 1.83502328 -3.15467460 53 -0.80110279 1.83502328 54 3.38018288 -0.80110279 55 -2.65023756 3.38018288 56 3.65314003 -2.65023756 57 5.28981835 3.65314003 58 2.23343447 5.28981835 59 -0.90248067 2.23343447 60 2.29731028 -0.90248067 61 -3.98268481 2.29731028 62 -6.46944861 -3.98268481 63 3.52699940 -6.46944861 64 -0.21537788 3.52699940 65 1.42908267 -0.21537788 66 -1.05657081 1.42908267 67 0.87581238 -1.05657081 68 -3.73658942 0.87581238 69 -2.96011865 -3.73658942 70 -0.41762005 -2.96011865 71 5.00059630 -0.41762005 72 -2.67154408 5.00059630 73 NA -2.67154408 > dum1 <- dum[2:length(myerror),] > dum1 lag(myerror, k = 1) myerror [1,] -2.01840280 -1.46155813 [2,] 2.62013639 -2.01840280 [3,] -2.68885396 2.62013639 [4,] -1.99707458 -2.68885396 [5,] -3.79683898 -1.99707458 [6,] -1.63242235 -3.79683898 [7,] 4.48406528 -1.63242235 [8,] 3.42298079 4.48406528 [9,] -1.20228117 3.42298079 [10,] 0.18947528 -1.20228117 [11,] -2.26787385 0.18947528 [12,] -0.68593939 -2.26787385 [13,] 8.30986496 -0.68593939 [14,] -2.15070393 8.30986496 [15,] -1.28990762 -2.15070393 [16,] 0.10844759 -1.28990762 [17,] 3.22615439 0.10844759 [18,] 2.84761078 3.22615439 [19,] 2.16674142 2.84761078 [20,] -3.86862198 2.16674142 [21,] 3.85047284 -3.86862198 [22,] 4.43422704 3.85047284 [23,] -0.87187168 4.43422704 [24,] 5.46658709 -0.87187168 [25,] -8.15406149 5.46658709 [26,] 0.03512474 -8.15406149 [27,] 2.60392317 0.03512474 [28,] 2.19753977 2.60392317 [29,] -1.81678727 2.19753977 [30,] -2.90762167 -1.81678727 [31,] -2.83742645 -2.90762167 [32,] 1.51936084 -2.83742645 [33,] -2.90588926 1.51936084 [34,] -5.64024041 -2.90588926 [35,] -0.12296662 -5.64024041 [36,] -7.56607528 -0.12296662 [37,] 2.76358508 -7.56607528 [38,] 2.57451580 2.76358508 [39,] 1.00251361 2.57451580 [40,] -1.92855818 1.00251361 [41,] 1.75949198 -1.92855818 [42,] -0.63117884 1.75949198 [43,] -2.03895507 -0.63117884 [44,] -0.99027025 -2.03895507 [45,] -2.07200211 -0.99027025 [46,] -0.79927632 -2.07200211 [47,] -0.83540349 -0.79927632 [48,] 4.62121951 -0.83540349 [49,] 3.08169906 4.62121951 [50,] 3.39037562 3.08169906 [51,] -3.15467460 3.39037562 [52,] 1.83502328 -3.15467460 [53,] -0.80110279 1.83502328 [54,] 3.38018288 -0.80110279 [55,] -2.65023756 3.38018288 [56,] 3.65314003 -2.65023756 [57,] 5.28981835 3.65314003 [58,] 2.23343447 5.28981835 [59,] -0.90248067 2.23343447 [60,] 2.29731028 -0.90248067 [61,] -3.98268481 2.29731028 [62,] -6.46944861 -3.98268481 [63,] 3.52699940 -6.46944861 [64,] -0.21537788 3.52699940 [65,] 1.42908267 -0.21537788 [66,] -1.05657081 1.42908267 [67,] 0.87581238 -1.05657081 [68,] -3.73658942 0.87581238 [69,] -2.96011865 -3.73658942 [70,] -0.41762005 -2.96011865 [71,] 5.00059630 -0.41762005 [72,] -2.67154408 5.00059630 > z <- as.data.frame(dum1) > z lag(myerror, k = 1) myerror 1 -2.01840280 -1.46155813 2 2.62013639 -2.01840280 3 -2.68885396 2.62013639 4 -1.99707458 -2.68885396 5 -3.79683898 -1.99707458 6 -1.63242235 -3.79683898 7 4.48406528 -1.63242235 8 3.42298079 4.48406528 9 -1.20228117 3.42298079 10 0.18947528 -1.20228117 11 -2.26787385 0.18947528 12 -0.68593939 -2.26787385 13 8.30986496 -0.68593939 14 -2.15070393 8.30986496 15 -1.28990762 -2.15070393 16 0.10844759 -1.28990762 17 3.22615439 0.10844759 18 2.84761078 3.22615439 19 2.16674142 2.84761078 20 -3.86862198 2.16674142 21 3.85047284 -3.86862198 22 4.43422704 3.85047284 23 -0.87187168 4.43422704 24 5.46658709 -0.87187168 25 -8.15406149 5.46658709 26 0.03512474 -8.15406149 27 2.60392317 0.03512474 28 2.19753977 2.60392317 29 -1.81678727 2.19753977 30 -2.90762167 -1.81678727 31 -2.83742645 -2.90762167 32 1.51936084 -2.83742645 33 -2.90588926 1.51936084 34 -5.64024041 -2.90588926 35 -0.12296662 -5.64024041 36 -7.56607528 -0.12296662 37 2.76358508 -7.56607528 38 2.57451580 2.76358508 39 1.00251361 2.57451580 40 -1.92855818 1.00251361 41 1.75949198 -1.92855818 42 -0.63117884 1.75949198 43 -2.03895507 -0.63117884 44 -0.99027025 -2.03895507 45 -2.07200211 -0.99027025 46 -0.79927632 -2.07200211 47 -0.83540349 -0.79927632 48 4.62121951 -0.83540349 49 3.08169906 4.62121951 50 3.39037562 3.08169906 51 -3.15467460 3.39037562 52 1.83502328 -3.15467460 53 -0.80110279 1.83502328 54 3.38018288 -0.80110279 55 -2.65023756 3.38018288 56 3.65314003 -2.65023756 57 5.28981835 3.65314003 58 2.23343447 5.28981835 59 -0.90248067 2.23343447 60 2.29731028 -0.90248067 61 -3.98268481 2.29731028 62 -6.46944861 -3.98268481 63 3.52699940 -6.46944861 64 -0.21537788 3.52699940 65 1.42908267 -0.21537788 66 -1.05657081 1.42908267 67 0.87581238 -1.05657081 68 -3.73658942 0.87581238 69 -2.96011865 -3.73658942 70 -0.41762005 -2.96011865 71 5.00059630 -0.41762005 72 -2.67154408 5.00059630 > plot(z,main=paste('Residual Lag plot, lowess, and regression line'), ylab='values of Residuals', xlab='lagged values of Residuals') > lines(lowess(z)) > abline(lm(z)) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/7rejt1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(mysum$resid, lag.max=length(mysum$resid)/2, main='Residual Autocorrelation Function') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/85yxx1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > pacf(mysum$resid, lag.max=length(mysum$resid)/2, main='Residual Partial Autocorrelation Function') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/9pvuh1261320555.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > opar <- par(mfrow = c(2,2), oma = c(0, 0, 1.1, 0)) > plot(mylm, las = 1, sub='Residual Diagnostics') > par(opar) > dev.off() null device 1 > if (n > n25) { + postscript(file="/var/www/html/rcomp/tmp/10329b1261320556.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) + plot(kp3:nmkm3,gqarr[,2], main='Goldfeld-Quandt test',ylab='2-sided p-value',xlab='breakpoint') + grid() + dev.off() + } null device 1 > > #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/html/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a, 'Multiple Linear Regression - Estimated Regression Equation', 1, TRUE) > a<-table.row.end(a) > myeq <- colnames(x)[1] > myeq <- paste(myeq, '[t] = ', sep='') > for (i in 1:k){ + if (mysum$coefficients[i,1] > 0) myeq <- paste(myeq, '+', '') + myeq <- paste(myeq, mysum$coefficients[i,1], sep=' ') + if (rownames(mysum$coefficients)[i] != '(Intercept)') { + myeq <- paste(myeq, rownames(mysum$coefficients)[i], sep='') + if (rownames(mysum$coefficients)[i] != 't') myeq <- paste(myeq, '[t]', sep='') + } + } > myeq <- paste(myeq, ' + e[t]') > a<-table.row.start(a) > a<-table.element(a, myeq) > a<-table.row.end(a) > a<-table.end(a) > table.save(a,file="/var/www/html/rcomp/tmp/113x9a1261320556.tab") > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,hyperlink('http://www.xycoon.com/ols1.htm','Multiple Linear Regression - Ordinary Least Squares',''), 6, TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'Variable',header=TRUE) > a<-table.element(a,'Parameter',header=TRUE) > a<-table.element(a,'S.D.',header=TRUE) > a<-table.element(a,'T-STAT
H0: parameter = 0',header=TRUE) > a<-table.element(a,'2-tail p-value',header=TRUE) > a<-table.element(a,'1-tail p-value',header=TRUE) > a<-table.row.end(a) > for (i in 1:k){ + a<-table.row.start(a) + a<-table.element(a,rownames(mysum$coefficients)[i],header=TRUE) + a<-table.element(a,mysum$coefficients[i,1]) + a<-table.element(a, round(mysum$coefficients[i,2],6)) + a<-table.element(a, round(mysum$coefficients[i,3],4)) + a<-table.element(a, round(mysum$coefficients[i,4],6)) + a<-table.element(a, round(mysum$coefficients[i,4]/2,6)) + a<-table.row.end(a) + } > a<-table.end(a) > table.save(a,file="/var/www/html/rcomp/tmp/12j36x1261320556.tab") > a<-table.start() > a<-table.row.start(a) > a<-table.element(a, 'Multiple Linear Regression - Regression Statistics', 2, TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'Multiple R',1,TRUE) > a<-table.element(a, sqrt(mysum$r.squared)) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'R-squared',1,TRUE) > a<-table.element(a, mysum$r.squared) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'Adjusted R-squared',1,TRUE) > a<-table.element(a, mysum$adj.r.squared) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'F-TEST (value)',1,TRUE) > a<-table.element(a, mysum$fstatistic[1]) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'F-TEST (DF numerator)',1,TRUE) > a<-table.element(a, mysum$fstatistic[2]) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'F-TEST (DF denominator)',1,TRUE) > a<-table.element(a, mysum$fstatistic[3]) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'p-value',1,TRUE) > a<-table.element(a, 1-pf(mysum$fstatistic[1],mysum$fstatistic[2],mysum$fstatistic[3])) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'Multiple Linear Regression - Residual Statistics', 2, TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'Residual Standard Deviation',1,TRUE) > a<-table.element(a, mysum$sigma) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'Sum Squared Residuals',1,TRUE) > a<-table.element(a, sum(myerror*myerror)) > a<-table.row.end(a) > a<-table.end(a) > table.save(a,file="/var/www/html/rcomp/tmp/13aiap1261320556.tab") > a<-table.start() > a<-table.row.start(a) > a<-table.element(a, 'Multiple Linear Regression - Actuals, Interpolation, and Residuals', 4, TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a, 'Time or Index', 1, TRUE) > a<-table.element(a, 'Actuals', 1, TRUE) > a<-table.element(a, 'Interpolation
Forecast', 1, TRUE) > a<-table.element(a, 'Residuals
Prediction Error', 1, TRUE) > a<-table.row.end(a) > for (i in 1:n) { + a<-table.row.start(a) + a<-table.element(a,i, 1, TRUE) + a<-table.element(a,x[i]) + a<-table.element(a,x[i]-mysum$resid[i]) + a<-table.element(a,mysum$resid[i]) + a<-table.row.end(a) + } > a<-table.end(a) > table.save(a,file="/var/www/html/rcomp/tmp/14ql8j1261320556.tab") > if (n > n25) { + a<-table.start() + a<-table.row.start(a) + a<-table.element(a,'Goldfeld-Quandt test for Heteroskedasticity',4,TRUE) + a<-table.row.end(a) + a<-table.row.start(a) + a<-table.element(a,'p-values',header=TRUE) + a<-table.element(a,'Alternative Hypothesis',3,header=TRUE) + a<-table.row.end(a) + a<-table.row.start(a) + a<-table.element(a,'breakpoint index',header=TRUE) + a<-table.element(a,'greater',header=TRUE) + a<-table.element(a,'2-sided',header=TRUE) + a<-table.element(a,'less',header=TRUE) + a<-table.row.end(a) + for (mypoint in kp3:nmkm3) { + a<-table.row.start(a) + a<-table.element(a,mypoint,header=TRUE) + a<-table.element(a,gqarr[mypoint-kp3+1,1]) + a<-table.element(a,gqarr[mypoint-kp3+1,2]) + a<-table.element(a,gqarr[mypoint-kp3+1,3]) + a<-table.row.end(a) + } + a<-table.end(a) + table.save(a,file="/var/www/html/rcomp/tmp/15e66x1261320556.tab") + a<-table.start() + a<-table.row.start(a) + a<-table.element(a,'Meta Analysis of Goldfeld-Quandt test for Heteroskedasticity',4,TRUE) + a<-table.row.end(a) + a<-table.row.start(a) + a<-table.element(a,'Description',header=TRUE) + a<-table.element(a,'# significant tests',header=TRUE) + a<-table.element(a,'% significant tests',header=TRUE) + a<-table.element(a,'OK/NOK',header=TRUE) + a<-table.row.end(a) + a<-table.row.start(a) + a<-table.element(a,'1% type I error level',header=TRUE) + a<-table.element(a,numsignificant1) + a<-table.element(a,numsignificant1/numgqtests) + if (numsignificant1/numgqtests < 0.01) dum <- 'OK' else dum <- 'NOK' + a<-table.element(a,dum) + a<-table.row.end(a) + a<-table.row.start(a) + a<-table.element(a,'5% type I error level',header=TRUE) + a<-table.element(a,numsignificant5) + a<-table.element(a,numsignificant5/numgqtests) + if (numsignificant5/numgqtests < 0.05) dum <- 'OK' else dum <- 'NOK' + a<-table.element(a,dum) + a<-table.row.end(a) + a<-table.row.start(a) + a<-table.element(a,'10% type I error level',header=TRUE) + a<-table.element(a,numsignificant10) + a<-table.element(a,numsignificant10/numgqtests) + if (numsignificant10/numgqtests < 0.1) dum <- 'OK' else dum <- 'NOK' + a<-table.element(a,dum) + a<-table.row.end(a) + a<-table.end(a) + table.save(a,file="/var/www/html/rcomp/tmp/165vll1261320556.tab") + } > > try(system("convert tmp/1odto1261320555.ps tmp/1odto1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/2t43g1261320555.ps tmp/2t43g1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/3a4c31261320555.ps tmp/3a4c31261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/4a0qq1261320555.ps tmp/4a0qq1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/50edm1261320555.ps tmp/50edm1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/6u1i81261320555.ps tmp/6u1i81261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/7rejt1261320555.ps tmp/7rejt1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/85yxx1261320555.ps tmp/85yxx1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/9pvuh1261320555.ps tmp/9pvuh1261320555.png",intern=TRUE)) character(0) > try(system("convert tmp/10329b1261320556.ps tmp/10329b1261320556.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.459 1.565 3.240