R version 2.8.0 (2008-10-20) Copyright (C) 2008 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. Natural language support but running in an English locale 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 <- array(list(9 + ,13 + ,13 + ,14 + ,13 + ,3 + ,1 + ,1 + ,0 + ,9 + ,12 + ,12 + ,8 + ,13 + ,5 + ,1 + ,0 + ,0 + ,9 + ,15 + ,10 + ,12 + ,16 + ,6 + ,0 + ,0 + ,0 + ,9 + ,12 + ,9 + ,7 + ,12 + ,6 + ,2 + ,0 + ,1 + ,9 + ,10 + ,10 + ,10 + ,11 + ,5 + ,0 + ,1 + ,2 + ,9 + ,12 + ,12 + ,7 + ,12 + ,3 + ,0 + ,0 + ,1 + ,9 + ,15 + ,13 + ,16 + ,18 + ,8 + ,1 + ,1 + ,1 + ,9 + ,9 + ,12 + ,11 + ,11 + ,4 + ,1 + ,0 + ,0 + ,9 + ,12 + ,12 + ,14 + ,14 + ,4 + ,4 + ,0 + ,0 + ,9 + ,11 + ,6 + ,6 + ,9 + ,4 + ,0 + ,0 + ,0 + ,9 + ,11 + ,5 + ,16 + ,14 + ,6 + ,0 + ,2 + ,1 + ,9 + ,11 + ,12 + ,11 + ,12 + ,6 + ,2 + ,0 + ,0 + ,9 + ,15 + ,11 + ,16 + ,11 + ,5 + ,0 + ,2 + ,2 + ,9 + ,7 + ,14 + ,12 + ,12 + ,4 + ,1 + ,1 + ,1 + ,9 + ,11 + ,14 + ,7 + ,13 + ,6 + ,0 + ,1 + ,0 + ,9 + ,11 + ,12 + ,13 + ,11 + ,4 + ,0 + ,0 + ,1 + ,9 + ,10 + ,12 + ,11 + ,12 + ,6 + ,1 + ,1 + ,0 + ,9 + ,14 + ,11 + ,15 + ,16 + ,6 + ,2 + ,0 + ,1 + ,9 + ,10 + ,11 + ,7 + ,9 + ,4 + ,1 + ,0 + ,0 + ,9 + ,6 + ,7 + ,9 + ,11 + ,4 + ,1 + ,0 + ,0 + ,9 + ,11 + ,9 + ,7 + ,13 + ,2 + ,0 + ,1 + ,1 + ,9 + ,15 + ,11 + ,14 + ,15 + ,7 + ,1 + ,2 + ,0 + ,9 + ,11 + ,11 + ,15 + ,10 + ,5 + ,1 + ,2 + ,1 + ,9 + ,12 + ,12 + ,7 + ,11 + ,4 + ,2 + ,0 + ,0 + ,9 + ,14 + ,12 + ,15 + ,13 + ,6 + ,1 + ,0 + ,0 + ,9 + ,15 + ,11 + ,17 + ,16 + ,6 + ,1 + ,1 + ,0 + ,9 + ,9 + ,11 + ,15 + ,15 + ,7 + ,1 + ,1 + ,0 + ,9 + ,13 + ,8 + ,14 + ,14 + ,5 + ,2 + ,2 + ,0 + ,9 + ,13 + ,9 + ,14 + ,14 + ,6 + ,0 + ,0 + ,2 + ,9 + ,16 + ,12 + ,8 + ,14 + ,4 + ,1 + ,1 + ,1 + ,9 + ,13 + ,10 + ,8 + ,8 + ,4 + ,0 + ,1 + ,2 + ,9 + ,12 + ,10 + ,14 + ,13 + ,7 + ,1 + ,1 + ,1 + ,9 + ,14 + ,12 + ,14 + ,15 + ,7 + ,1 + ,2 + ,1 + ,9 + ,11 + ,8 + ,8 + ,13 + ,4 + ,0 + ,2 + ,0 + ,9 + ,9 + ,12 + ,11 + ,11 + ,4 + ,1 + ,1 + ,0 + ,9 + ,16 + ,11 + ,16 + ,15 + ,6 + ,2 + ,2 + ,0 + ,9 + ,12 + ,12 + ,10 + ,15 + ,6 + ,1 + ,1 + ,1 + ,9 + ,10 + ,7 + ,8 + ,9 + ,5 + ,1 + ,1 + ,2 + ,9 + ,13 + ,11 + ,14 + ,13 + ,6 + ,1 + ,0 + ,1 + ,9 + ,16 + ,11 + ,16 + ,16 + ,7 + ,1 + ,3 + ,1 + ,9 + ,14 + ,12 + ,13 + ,13 + ,6 + ,0 + ,1 + ,2 + ,9 + ,15 + ,9 + ,5 + ,11 + ,3 + ,1 + ,0 + ,0 + ,9 + ,5 + ,15 + ,8 + ,12 + ,3 + ,1 + ,0 + ,0 + ,9 + ,8 + ,11 + ,10 + ,12 + ,4 + ,1 + ,0 + ,0 + ,9 + ,11 + ,11 + ,8 + ,12 + ,6 + ,0 + ,1 + ,1 + ,9 + ,16 + ,11 + ,13 + ,14 + ,7 + ,2 + ,0 + ,1 + ,9 + ,17 + ,11 + ,15 + ,14 + ,5 + ,1 + ,4 + ,4 + ,9 + ,9 + ,15 + ,6 + ,8 + ,4 + ,0 + ,0 + ,0 + ,9 + ,9 + ,11 + ,12 + ,13 + ,5 + ,0 + ,0 + ,0 + ,9 + ,13 + ,12 + ,16 + ,16 + ,6 + ,1 + ,0 + ,1 + ,9 + ,10 + ,12 + ,5 + ,13 + ,6 + ,1 + ,1 + ,0 + ,9 + ,6 + ,9 + ,15 + ,11 + ,6 + ,0 + ,2 + ,1 + ,9 + ,12 + ,12 + ,12 + ,14 + ,5 + ,0 + ,1 + ,0 + ,9 + ,8 + ,12 + ,8 + ,13 + ,4 + ,0 + ,1 + ,1 + ,9 + ,14 + ,13 + ,13 + ,13 + ,5 + ,0 + ,0 + ,0 + ,9 + ,12 + ,11 + ,14 + ,13 + ,5 + ,1 + ,2 + ,2 + ,10 + ,11 + ,9 + ,12 + ,12 + ,4 + ,0 + ,0 + ,2 + ,10 + ,16 + ,9 + ,16 + ,16 + ,6 + ,0 + ,3 + ,1 + ,10 + ,8 + ,11 + ,10 + ,15 + ,2 + ,1 + ,2 + ,0 + ,10 + ,15 + ,11 + ,15 + ,15 + ,8 + ,0 + ,0 + ,0 + ,10 + ,7 + ,12 + ,8 + ,12 + ,3 + ,0 + ,0 + ,0 + ,10 + ,16 + ,12 + ,16 + ,14 + ,6 + ,2 + ,2 + ,0 + ,10 + ,14 + ,9 + ,19 + ,12 + ,6 + ,0 + ,1 + ,0 + ,10 + ,16 + ,11 + ,14 + ,15 + ,6 + ,0 + ,0 + ,1 + ,10 + ,9 + ,9 + ,6 + ,12 + ,5 + ,1 + ,2 + ,1 + ,10 + ,14 + ,12 + ,13 + ,13 + ,5 + ,2 + ,0 + ,0 + ,10 + ,11 + ,12 + ,15 + ,12 + ,6 + ,3 + ,1 + ,0 + ,10 + ,13 + ,12 + ,7 + ,12 + ,5 + ,1 + ,0 + ,0 + ,10 + ,15 + ,12 + ,13 + ,13 + ,6 + ,1 + ,2 + ,1 + ,10 + ,5 + ,14 + ,4 + ,5 + ,2 + ,2 + ,0 + ,0 + ,10 + ,15 + ,11 + ,14 + ,13 + ,5 + ,1 + ,2 + ,2 + ,10 + ,13 + ,12 + ,13 + ,13 + ,5 + ,1 + ,3 + ,0 + ,10 + ,11 + ,11 + ,11 + ,14 + ,5 + ,2 + ,0 + ,2 + ,10 + ,11 + ,6 + ,14 + ,17 + ,6 + ,1 + ,2 + ,1 + ,10 + ,12 + ,10 + ,12 + ,13 + ,6 + ,0 + ,3 + ,1 + ,10 + ,12 + ,12 + ,15 + ,13 + ,6 + ,1 + ,1 + ,1 + ,10 + ,12 + ,13 + ,14 + ,12 + ,5 + ,1 + ,0 + ,2 + ,10 + ,12 + ,8 + ,13 + ,13 + ,5 + ,0 + ,1 + ,2 + ,10 + ,14 + ,12 + ,8 + ,14 + ,4 + ,2 + ,0 + ,0 + ,10 + ,6 + ,12 + ,6 + ,11 + ,2 + ,1 + ,0 + ,0 + ,10 + ,7 + ,12 + ,7 + ,12 + ,4 + ,0 + ,1 + ,0 + ,10 + ,14 + ,6 + ,13 + ,12 + ,6 + ,3 + ,1 + ,1 + ,10 + ,14 + ,11 + ,13 + ,16 + ,6 + ,1 + ,2 + ,1 + ,10 + ,10 + ,10 + ,11 + ,12 + ,5 + ,1 + ,1 + ,0 + ,10 + ,13 + ,12 + ,5 + ,12 + ,3 + ,3 + ,0 + ,0 + ,10 + ,12 + ,13 + ,12 + ,12 + ,6 + ,2 + ,0 + ,0 + ,10 + ,9 + ,11 + ,8 + ,10 + ,4 + ,1 + ,1 + ,0 + ,10 + ,12 + ,7 + ,11 + ,15 + ,5 + ,0 + ,0 + ,2 + ,10 + ,16 + ,11 + ,14 + ,15 + ,8 + ,1 + ,0 + ,1 + ,10 + ,10 + ,11 + ,9 + ,12 + ,4 + ,2 + ,0 + ,1 + ,10 + ,14 + ,11 + ,10 + ,16 + ,6 + ,1 + ,1 + ,0 + ,10 + ,10 + ,11 + ,13 + ,15 + ,6 + ,1 + ,1 + ,1 + ,10 + ,16 + ,12 + ,16 + ,16 + ,7 + ,0 + ,3 + ,1 + ,10 + ,15 + ,10 + ,16 + ,13 + ,6 + ,2 + ,1 + ,0 + ,10 + ,12 + ,11 + ,11 + ,12 + ,5 + ,1 + ,1 + ,1 + ,10 + ,10 + ,12 + ,8 + ,11 + ,4 + ,0 + ,0 + ,0 + ,10 + ,8 + ,7 + ,4 + ,13 + ,6 + ,0 + ,0 + ,1 + ,10 + ,8 + ,13 + ,7 + ,10 + ,3 + ,1 + ,1 + ,0 + ,10 + ,11 + ,8 + ,14 + ,15 + ,5 + ,1 + ,1 + ,0 + ,10 + ,13 + ,12 + ,11 + ,13 + ,6 + ,1 + ,0 + ,2 + ,10 + ,16 + ,11 + ,17 + ,16 + ,7 + ,1 + ,1 + ,2 + ,10 + ,16 + ,12 + ,15 + ,15 + ,7 + ,1 + ,1 + ,2 + ,10 + ,14 + ,14 + ,17 + ,18 + ,6 + ,0 + ,0 + ,1 + ,10 + ,11 + ,10 + ,5 + ,13 + ,3 + ,0 + ,1 + ,1 + ,10 + ,4 + ,10 + ,4 + ,10 + ,2 + ,1 + ,0 + ,1 + ,10 + ,14 + ,13 + ,10 + ,16 + ,8 + ,2 + ,1 + ,0 + ,10 + ,9 + ,10 + ,11 + ,13 + ,3 + ,1 + ,1 + ,1 + ,10 + ,14 + ,11 + ,15 + ,15 + ,8 + ,1 + ,1 + ,1 + ,10 + ,8 + ,10 + ,10 + ,14 + ,3 + ,0 + ,1 + ,0 + ,10 + ,8 + ,7 + ,9 + ,15 + ,4 + ,0 + ,1 + ,0 + ,10 + ,11 + ,10 + ,12 + ,14 + ,5 + ,1 + ,0 + ,0 + ,10 + ,12 + ,8 + ,15 + ,13 + ,7 + ,1 + ,0 + ,0 + ,10 + ,11 + ,12 + ,7 + ,13 + ,6 + ,0 + ,0 + ,0 + ,10 + ,14 + ,12 + ,13 + ,15 + ,6 + ,0 + ,1 + ,0 + ,10 + ,15 + ,12 + ,12 + ,16 + ,7 + ,2 + ,1 + ,0 + ,10 + ,16 + ,11 + ,14 + ,14 + ,6 + ,2 + ,1 + ,0 + ,10 + ,16 + ,12 + ,14 + ,14 + ,6 + ,0 + ,0 + ,0 + ,10 + ,11 + ,12 + ,8 + ,16 + ,6 + ,1 + ,1 + ,0 + ,10 + ,14 + ,12 + ,15 + ,14 + ,6 + ,0 + ,4 + ,1 + ,10 + ,14 + ,11 + ,12 + ,12 + ,4 + ,2 + ,0 + ,0 + ,10 + ,12 + ,12 + ,12 + ,13 + ,4 + ,1 + ,1 + ,1 + ,10 + ,14 + ,11 + ,16 + ,12 + ,5 + ,0 + ,0 + ,3 + ,10 + ,8 + ,11 + ,9 + ,12 + ,4 + ,1 + ,2 + ,2 + ,10 + ,13 + ,13 + ,15 + ,14 + ,6 + ,1 + ,1 + ,2 + ,10 + ,16 + ,12 + ,15 + ,14 + ,6 + ,2 + ,0 + ,2 + ,10 + ,12 + ,12 + ,6 + ,14 + ,5 + ,0 + ,0 + ,0 + ,10 + ,16 + ,12 + ,14 + ,16 + ,8 + ,2 + ,0 + ,1 + ,10 + ,12 + ,12 + ,15 + ,13 + ,6 + ,0 + ,0 + ,0 + ,10 + ,11 + ,8 + ,10 + ,14 + ,5 + ,1 + ,1 + ,0 + ,10 + ,4 + ,8 + ,6 + ,4 + ,4 + ,0 + ,0 + ,0 + ,10 + ,16 + ,12 + ,14 + ,16 + ,8 + ,3 + ,2 + ,1 + ,10 + ,15 + ,11 + ,12 + ,13 + ,6 + ,1 + ,0 + ,2 + ,10 + ,10 + ,12 + ,8 + ,16 + ,4 + ,0 + ,1 + ,0 + ,10 + ,13 + ,13 + ,11 + ,15 + ,6 + ,0 + ,2 + ,4 + ,10 + ,15 + ,12 + ,13 + ,14 + ,6 + ,0 + ,2 + ,0 + ,10 + ,12 + ,12 + ,9 + ,13 + ,4 + ,0 + ,1 + ,0 + ,10 + ,14 + ,11 + ,15 + ,14 + ,6 + ,0 + ,3 + ,0 + ,10 + ,7 + ,12 + ,13 + ,12 + ,3 + ,1 + ,0 + ,0 + ,10 + ,19 + ,12 + ,15 + ,15 + ,6 + ,1 + ,1 + ,0 + ,10 + ,12 + ,10 + ,14 + ,14 + ,5 + ,2 + ,1 + ,1 + ,10 + ,12 + ,11 + ,16 + ,13 + ,4 + ,1 + ,0 + ,0 + ,10 + ,13 + ,12 + ,14 + ,14 + ,6 + ,0 + ,1 + ,1 + ,10 + ,15 + ,12 + ,14 + ,16 + ,4 + ,0 + ,0 + ,0 + ,10 + ,8 + ,10 + ,10 + ,6 + ,4 + ,2 + ,1 + ,2 + ,10 + ,12 + ,12 + ,10 + ,13 + ,4 + ,1 + ,0 + ,1 + ,10 + ,10 + ,13 + ,4 + ,13 + ,6 + ,0 + ,1 + ,0 + ,10 + ,8 + ,12 + ,8 + ,14 + ,5 + ,1 + ,0 + ,0 + ,10 + ,10 + ,15 + ,15 + ,15 + ,6 + ,2 + ,2 + ,0 + ,10 + ,15 + ,11 + ,16 + ,14 + ,6 + ,2 + ,0 + ,1 + ,10 + ,16 + ,12 + ,12 + ,15 + ,8 + ,0 + ,0 + ,0 + ,10 + ,13 + ,11 + ,12 + ,13 + ,7 + ,1 + ,1 + ,1 + ,10 + ,16 + ,12 + ,15 + ,16 + ,7 + ,2 + ,1 + ,0 + ,10 + ,9 + ,11 + ,9 + ,12 + ,4 + ,0 + ,0 + ,0 + ,10 + ,14 + ,10 + ,12 + ,15 + ,6 + ,1 + ,0 + ,1 + ,10 + ,14 + ,11 + ,14 + ,12 + ,6 + ,2 + ,1 + ,2 + ,10 + ,12 + ,11 + ,11 + ,14 + ,2 + ,1 + ,1 + ,0) + ,dim=c(9 + ,156) + ,dimnames=list(c('month' + ,'Popularity' + ,'FindingFriends' + ,'KnowingPeople' + ,'Liked' + ,'Celebrity' + ,'bestfriend' + ,'secondbestfriend' + ,'thirdbestfriend') + ,1:156)) > y <- array(NA,dim=c(9,156),dimnames=list(c('month','Popularity','FindingFriends','KnowingPeople','Liked','Celebrity','bestfriend','secondbestfriend','thirdbestfriend'),1:156)) > for (i in 1:dim(x)[1]) + { + for (j in 1:dim(x)[2]) + { + y[i,j] <- as.numeric(x[i,j]) + } + } > par20 = '' > par19 = '' > par18 = '' > par17 = '' > par16 = '' > par15 = '' > par14 = '' > par13 = '' > par12 = '' > par11 = '' > par10 = '' > par9 = '' > par8 = '' > par7 = '' > par6 = '' > par5 = '' > par4 = '' > par3 = 'Linear Trend' > par2 = 'Do not include Seasonal Dummies' > par1 = '2' > ylab = '' > xlab = '' > main = '' > #'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 Popularity month FindingFriends KnowingPeople Liked Celebrity bestfriend 1 13 9 13 14 13 3 1 2 12 9 12 8 13 5 1 3 15 9 10 12 16 6 0 4 12 9 9 7 12 6 2 5 10 9 10 10 11 5 0 6 12 9 12 7 12 3 0 7 15 9 13 16 18 8 1 8 9 9 12 11 11 4 1 9 12 9 12 14 14 4 4 10 11 9 6 6 9 4 0 11 11 9 5 16 14 6 0 12 11 9 12 11 12 6 2 13 15 9 11 16 11 5 0 14 7 9 14 12 12 4 1 15 11 9 14 7 13 6 0 16 11 9 12 13 11 4 0 17 10 9 12 11 12 6 1 18 14 9 11 15 16 6 2 19 10 9 11 7 9 4 1 20 6 9 7 9 11 4 1 21 11 9 9 7 13 2 0 22 15 9 11 14 15 7 1 23 11 9 11 15 10 5 1 24 12 9 12 7 11 4 2 25 14 9 12 15 13 6 1 26 15 9 11 17 16 6 1 27 9 9 11 15 15 7 1 28 13 9 8 14 14 5 2 29 13 9 9 14 14 6 0 30 16 9 12 8 14 4 1 31 13 9 10 8 8 4 0 32 12 9 10 14 13 7 1 33 14 9 12 14 15 7 1 34 11 9 8 8 13 4 0 35 9 9 12 11 11 4 1 36 16 9 11 16 15 6 2 37 12 9 12 10 15 6 1 38 10 9 7 8 9 5 1 39 13 9 11 14 13 6 1 40 16 9 11 16 16 7 1 41 14 9 12 13 13 6 0 42 15 9 9 5 11 3 1 43 5 9 15 8 12 3 1 44 8 9 11 10 12 4 1 45 11 9 11 8 12 6 0 46 16 9 11 13 14 7 2 47 17 9 11 15 14 5 1 48 9 9 15 6 8 4 0 49 9 9 11 12 13 5 0 50 13 9 12 16 16 6 1 51 10 9 12 5 13 6 1 52 6 9 9 15 11 6 0 53 12 9 12 12 14 5 0 54 8 9 12 8 13 4 0 55 14 9 13 13 13 5 0 56 12 9 11 14 13 5 1 57 11 10 9 12 12 4 0 58 16 10 9 16 16 6 0 59 8 10 11 10 15 2 1 60 15 10 11 15 15 8 0 61 7 10 12 8 12 3 0 62 16 10 12 16 14 6 2 63 14 10 9 19 12 6 0 64 16 10 11 14 15 6 0 65 9 10 9 6 12 5 1 66 14 10 12 13 13 5 2 67 11 10 12 15 12 6 3 68 13 10 12 7 12 5 1 69 15 10 12 13 13 6 1 70 5 10 14 4 5 2 2 71 15 10 11 14 13 5 1 72 13 10 12 13 13 5 1 73 11 10 11 11 14 5 2 74 11 10 6 14 17 6 1 75 12 10 10 12 13 6 0 76 12 10 12 15 13 6 1 77 12 10 13 14 12 5 1 78 12 10 8 13 13 5 0 79 14 10 12 8 14 4 2 80 6 10 12 6 11 2 1 81 7 10 12 7 12 4 0 82 14 10 6 13 12 6 3 83 14 10 11 13 16 6 1 84 10 10 10 11 12 5 1 85 13 10 12 5 12 3 3 86 12 10 13 12 12 6 2 87 9 10 11 8 10 4 1 88 12 10 7 11 15 5 0 89 16 10 11 14 15 8 1 90 10 10 11 9 12 4 2 91 14 10 11 10 16 6 1 92 10 10 11 13 15 6 1 93 16 10 12 16 16 7 0 94 15 10 10 16 13 6 2 95 12 10 11 11 12 5 1 96 10 10 12 8 11 4 0 97 8 10 7 4 13 6 0 98 8 10 13 7 10 3 1 99 11 10 8 14 15 5 1 100 13 10 12 11 13 6 1 101 16 10 11 17 16 7 1 102 16 10 12 15 15 7 1 103 14 10 14 17 18 6 0 104 11 10 10 5 13 3 0 105 4 10 10 4 10 2 1 106 14 10 13 10 16 8 2 107 9 10 10 11 13 3 1 108 14 10 11 15 15 8 1 109 8 10 10 10 14 3 0 110 8 10 7 9 15 4 0 111 11 10 10 12 14 5 1 112 12 10 8 15 13 7 1 113 11 10 12 7 13 6 0 114 14 10 12 13 15 6 0 115 15 10 12 12 16 7 2 116 16 10 11 14 14 6 2 117 16 10 12 14 14 6 0 118 11 10 12 8 16 6 1 119 14 10 12 15 14 6 0 120 14 10 11 12 12 4 2 121 12 10 12 12 13 4 1 122 14 10 11 16 12 5 0 123 8 10 11 9 12 4 1 124 13 10 13 15 14 6 1 125 16 10 12 15 14 6 2 126 12 10 12 6 14 5 0 127 16 10 12 14 16 8 2 128 12 10 12 15 13 6 0 129 11 10 8 10 14 5 1 130 4 10 8 6 4 4 0 131 16 10 12 14 16 8 3 132 15 10 11 12 13 6 1 133 10 10 12 8 16 4 0 134 13 10 13 11 15 6 0 135 15 10 12 13 14 6 0 136 12 10 12 9 13 4 0 137 14 10 11 15 14 6 0 138 7 10 12 13 12 3 1 139 19 10 12 15 15 6 1 140 12 10 10 14 14 5 2 141 12 10 11 16 13 4 1 142 13 10 12 14 14 6 0 143 15 10 12 14 16 4 0 144 8 10 10 10 6 4 2 145 12 10 12 10 13 4 1 146 10 10 13 4 13 6 0 147 8 10 12 8 14 5 1 148 10 10 15 15 15 6 2 149 15 10 11 16 14 6 2 150 16 10 12 12 15 8 0 151 13 10 11 12 13 7 1 152 16 10 12 15 16 7 2 153 9 10 11 9 12 4 0 154 14 10 10 12 15 6 1 155 14 10 11 14 12 6 2 156 12 10 11 11 14 2 1 secondbestfriend thirdbestfriend t 1 1 0 1 2 0 0 2 3 0 0 3 4 0 1 4 5 1 2 5 6 0 1 6 7 1 1 7 8 0 0 8 9 0 0 9 10 0 0 10 11 2 1 11 12 0 0 12 13 2 2 13 14 1 1 14 15 1 0 15 16 0 1 16 17 1 0 17 18 0 1 18 19 0 0 19 20 0 0 20 21 1 1 21 22 2 0 22 23 2 1 23 24 0 0 24 25 0 0 25 26 1 0 26 27 1 0 27 28 2 0 28 29 0 2 29 30 1 1 30 31 1 2 31 32 1 1 32 33 2 1 33 34 2 0 34 35 1 0 35 36 2 0 36 37 1 1 37 38 1 2 38 39 0 1 39 40 3 1 40 41 1 2 41 42 0 0 42 43 0 0 43 44 0 0 44 45 1 1 45 46 0 1 46 47 4 4 47 48 0 0 48 49 0 0 49 50 0 1 50 51 1 0 51 52 2 1 52 53 1 0 53 54 1 1 54 55 0 0 55 56 2 2 56 57 0 2 57 58 3 1 58 59 2 0 59 60 0 0 60 61 0 0 61 62 2 0 62 63 1 0 63 64 0 1 64 65 2 1 65 66 0 0 66 67 1 0 67 68 0 0 68 69 2 1 69 70 0 0 70 71 2 2 71 72 3 0 72 73 0 2 73 74 2 1 74 75 3 1 75 76 1 1 76 77 0 2 77 78 1 2 78 79 0 0 79 80 0 0 80 81 1 0 81 82 1 1 82 83 2 1 83 84 1 0 84 85 0 0 85 86 0 0 86 87 1 0 87 88 0 2 88 89 0 1 89 90 0 1 90 91 1 0 91 92 1 1 92 93 3 1 93 94 1 0 94 95 1 1 95 96 0 0 96 97 0 1 97 98 1 0 98 99 1 0 99 100 0 2 100 101 1 2 101 102 1 2 102 103 0 1 103 104 1 1 104 105 0 1 105 106 1 0 106 107 1 1 107 108 1 1 108 109 1 0 109 110 1 0 110 111 0 0 111 112 0 0 112 113 0 0 113 114 1 0 114 115 1 0 115 116 1 0 116 117 0 0 117 118 1 0 118 119 4 1 119 120 0 0 120 121 1 1 121 122 0 3 122 123 2 2 123 124 1 2 124 125 0 2 125 126 0 0 126 127 0 1 127 128 0 0 128 129 1 0 129 130 0 0 130 131 2 1 131 132 0 2 132 133 1 0 133 134 2 4 134 135 2 0 135 136 1 0 136 137 3 0 137 138 0 0 138 139 1 0 139 140 1 1 140 141 0 0 141 142 1 1 142 143 0 0 143 144 1 2 144 145 0 1 145 146 1 0 146 147 0 0 147 148 2 0 148 149 0 1 149 150 0 0 150 151 1 1 151 152 1 0 152 153 0 0 153 154 0 1 154 155 1 2 155 156 1 0 156 > k <- length(x[1,]) > df <- as.data.frame(x) > (mylm <- lm(df)) Call: lm(formula = df) Coefficients: (Intercept) month FindingFriends KnowingPeople -0.98336 0.08938 0.10438 0.21162 Liked Celebrity bestfriend secondbestfriend 0.38519 0.59441 0.30765 -0.03240 thirdbestfriend t 0.41155 -0.00181 > (mysum <- summary(mylm)) Call: lm(formula = df) Residuals: Min 1Q Median 3Q Max -5.99104 -1.25241 -0.06006 1.37531 6.92942 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -0.983357 6.011657 -0.164 0.870292 month 0.089381 0.640842 0.139 0.889267 FindingFriends 0.104378 0.098559 1.059 0.291327 KnowingPeople 0.211623 0.064050 3.304 0.001199 ** Liked 0.385194 0.099038 3.889 0.000152 *** Celebrity 0.594410 0.156961 3.787 0.000222 *** bestfriend 0.307650 0.211991 1.451 0.148859 secondbestfriend -0.032400 0.202360 -0.160 0.873014 thirdbestfriend 0.411553 0.214612 1.918 0.057107 . t -0.001810 0.006864 -0.264 0.792389 --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 2.103 on 146 degrees of freedom Multiple R-squared: 0.5171, Adjusted R-squared: 0.4873 F-statistic: 17.37 on 9 and 146 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,] 0.8360018 0.32799642 0.163998208 [2,] 0.9019584 0.19608321 0.098041606 [3,] 0.8792406 0.24151888 0.120759442 [4,] 0.8086168 0.38276641 0.191383206 [5,] 0.7265852 0.54682968 0.273414838 [6,] 0.6667970 0.66640592 0.333202962 [7,] 0.6079103 0.78417931 0.392089653 [8,] 0.7021284 0.59574329 0.297871643 [9,] 0.6941923 0.61161543 0.305807713 [10,] 0.7453161 0.50936776 0.254683880 [11,] 0.6834184 0.63316315 0.316581576 [12,] 0.7077771 0.58444574 0.292222868 [13,] 0.6845358 0.63092845 0.315464225 [14,] 0.6260798 0.74784047 0.373920236 [15,] 0.8061672 0.38766567 0.193832837 [16,] 0.7709757 0.45804869 0.229024347 [17,] 0.7170351 0.56592977 0.282964883 [18,] 0.8186239 0.36275218 0.181376090 [19,] 0.8601566 0.27968676 0.139843380 [20,] 0.8296662 0.34066758 0.170333789 [21,] 0.7873126 0.42537481 0.212687407 [22,] 0.7549054 0.49018918 0.245094589 [23,] 0.7364121 0.52717586 0.263587932 [24,] 0.7567195 0.48656107 0.243280537 [25,] 0.7400780 0.51984393 0.259921964 [26,] 0.6964622 0.60707562 0.303537811 [27,] 0.6463023 0.70739531 0.353697656 [28,] 0.6025817 0.79483663 0.397418313 [29,] 0.5526456 0.89470872 0.447354360 [30,] 0.8431763 0.31364740 0.156823699 [31,] 0.9708149 0.05837016 0.029185082 [32,] 0.9717545 0.05649105 0.028245524 [33,] 0.9631161 0.07376786 0.036883931 [34,] 0.9686958 0.06260831 0.031304154 [35,] 0.9750191 0.04996173 0.024980863 [36,] 0.9715922 0.05681560 0.028407799 [37,] 0.9680591 0.06388174 0.031940869 [38,] 0.9594328 0.08113448 0.040567241 [39,] 0.9527291 0.09454171 0.047270857 [40,] 0.9892727 0.02145455 0.010727273 [41,] 0.9858034 0.02839315 0.014196574 [42,] 0.9891549 0.02169017 0.010845085 [43,] 0.9927679 0.01446422 0.007232109 [44,] 0.9902117 0.01957656 0.009788281 [45,] 0.9865132 0.02697369 0.013486846 [46,] 0.9858478 0.02830434 0.014152169 [47,] 0.9890596 0.02188084 0.010940421 [48,] 0.9878590 0.02428193 0.012140966 [49,] 0.9877983 0.02440334 0.012201668 [50,] 0.9894472 0.02110556 0.010552781 [51,] 0.9878856 0.02422885 0.012114425 [52,] 0.9882874 0.02342512 0.011712559 [53,] 0.9876599 0.02468020 0.012340102 [54,] 0.9856703 0.02865938 0.014329692 [55,] 0.9873147 0.02537057 0.012685284 [56,] 0.9888699 0.02226019 0.011130094 [57,] 0.9882981 0.02340382 0.011701909 [58,] 0.9850824 0.02983529 0.014917645 [59,] 0.9855569 0.02888612 0.014443059 [60,] 0.9821643 0.03567137 0.017835683 [61,] 0.9824988 0.03500242 0.017501208 [62,] 0.9874030 0.02519398 0.012596990 [63,] 0.9833495 0.03330093 0.016650464 [64,] 0.9801562 0.03968752 0.019843758 [65,] 0.9742931 0.05141377 0.025706883 [66,] 0.9666617 0.06667654 0.033338268 [67,] 0.9756401 0.04871974 0.024359872 [68,] 0.9739943 0.05201140 0.026005701 [69,] 0.9749669 0.05006611 0.025033056 [70,] 0.9729835 0.05403303 0.027016517 [71,] 0.9644489 0.07110211 0.035551055 [72,] 0.9552106 0.08957884 0.044789419 [73,] 0.9819981 0.03600385 0.018001926 [74,] 0.9760141 0.04797185 0.023985925 [75,] 0.9687225 0.06255498 0.031277489 [76,] 0.9597490 0.08050210 0.040251050 [77,] 0.9510082 0.09798364 0.048991821 [78,] 0.9384758 0.12304839 0.061524195 [79,] 0.9306312 0.13873764 0.069368822 [80,] 0.9547721 0.09045584 0.045227922 [81,] 0.9451513 0.10969748 0.054848740 [82,] 0.9434308 0.11313849 0.056569244 [83,] 0.9320032 0.13599367 0.067996833 [84,] 0.9197028 0.16059440 0.080297199 [85,] 0.9127614 0.17447721 0.087238604 [86,] 0.8944600 0.21108008 0.105540038 [87,] 0.8789282 0.24214355 0.121071775 [88,] 0.8530227 0.29395459 0.146977293 [89,] 0.8222659 0.35546822 0.177734111 [90,] 0.7957130 0.40857395 0.204286977 [91,] 0.8081799 0.38364027 0.191820133 [92,] 0.8644359 0.27112825 0.135564125 [93,] 0.8618594 0.27628122 0.138140608 [94,] 0.8298873 0.34022549 0.170112744 [95,] 0.7974679 0.40506430 0.202532148 [96,] 0.7836564 0.43268725 0.216343627 [97,] 0.7648546 0.47029075 0.235145374 [98,] 0.7841433 0.43171338 0.215856691 [99,] 0.7690454 0.46190923 0.230954614 [100,] 0.8343243 0.33135149 0.165675744 [101,] 0.7972502 0.40549959 0.202749796 [102,] 0.7663322 0.46733567 0.233667837 [103,] 0.7229761 0.55404774 0.277023870 [104,] 0.7321701 0.53565974 0.267829868 [105,] 0.7443748 0.51125035 0.255625177 [106,] 0.7256230 0.54875406 0.274377029 [107,] 0.6753799 0.64924016 0.324620082 [108,] 0.7713185 0.45736291 0.228681453 [109,] 0.7409584 0.51808329 0.259041646 [110,] 0.6882524 0.62349516 0.311747581 [111,] 0.6743284 0.65134328 0.325671638 [112,] 0.6314835 0.73703293 0.368516463 [113,] 0.6121769 0.77564624 0.387823122 [114,] 0.6125528 0.77489436 0.387447181 [115,] 0.5460357 0.90792866 0.453964329 [116,] 0.5048787 0.99024254 0.495121271 [117,] 0.4829941 0.96598828 0.517005862 [118,] 0.4650093 0.93001850 0.534990750 [119,] 0.3929231 0.78584620 0.607076898 [120,] 0.3714623 0.74292451 0.628537747 [121,] 0.3256673 0.65133467 0.674332666 [122,] 0.2813238 0.56264765 0.718676176 [123,] 0.2375462 0.47509230 0.762453848 [124,] 0.2190692 0.43813830 0.780930849 [125,] 0.1843067 0.36861338 0.815693311 [126,] 0.1975809 0.39516182 0.802419092 [127,] 0.6160697 0.76786051 0.383930255 [128,] 0.5261505 0.94769896 0.473849482 [129,] 0.4055699 0.81113973 0.594430137 [130,] 0.4008517 0.80170336 0.599148318 [131,] 0.2780890 0.55617801 0.721910994 > postscript(file="/var/www/html/freestat/rcomp/tmp/1jjwd1291316906.ps",horizontal=F,onefile=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$resid) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/freestat/rcomp/tmp/2tswy1291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(mysum$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/freestat/rcomp/tmp/3tswy1291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(mysum$resid, main='Residual Histogram', xlab='values of Residuals') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/freestat/rcomp/tmp/4mkd11291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > densityplot(~mysum$resid,col='black',main='Residual Density Plot', xlab='values of Residuals') > dev.off() null device 1 > postscript(file="/var/www/html/freestat/rcomp/tmp/5mkd11291316906.ps",horizontal=F,onefile=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 = 156 Frequency = 1 1 2 3 4 5 6 1.79509733 0.94980238 1.87153577 0.54976103 -0.97192460 2.63877668 7 8 9 10 11 12 -1.92686083 -1.30940794 -1.02099786 3.45663378 -2.01494858 -1.18383172 13 14 15 16 17 18 2.70084073 -4.48327347 -0.27816030 0.17792392 -1.83473119 -0.86741282 19 20 21 22 23 24 1.43176030 -3.34255000 2.22067907 0.92623737 -0.58033883 2.25839475 25 26 27 28 29 30 0.91566386 0.47542513 -5.30873535 0.51659678 -0.45298795 4.83054800 31 32 33 34 35 36 4.24837473 -1.62484908 -0.56978303 1.39209830 -1.22813575 1.81509285 37 38 39 40 41 42 -1.15404134 0.28692610 -0.15454691 0.77122638 0.88481507 6.92941668 43 44 45 46 47 48 -4.71510529 -2.31343802 -0.14870526 1.78249253 2.75246916 0.97120603 49 50 51 52 53 54 -2.39958743 -1.81784166 -0.88864535 -5.99104422 0.15048096 -2.43316644 55 56 57 58 59 60 2.19089361 -0.87611803 -0.10923356 1.82524294 -2.27762915 0.34245529 61 62 63 64 65 66 -2.15112060 2.05358897 1.08695261 2.33858579 -1.25072250 1.61050142 67 68 69 70 71 72 -2.29540026 2.57670256 1.98241895 -0.82162780 2.06165169 1.02621245 73 74 75 76 77 78 -2.05750378 -3.13465937 -0.24629106 -1.46055649 -0.81585098 -0.12567040 79 80 81 82 83 84 2.90136299 -2.02152943 -2.46530619 1.36971323 -0.04344332 -0.99967099 85 86 87 88 89 90 3.60423992 -0.45526880 -0.09895259 -0.38273359 0.88736740 -0.82713604 91 92 93 94 95 96 0.98505859 -3.67435902 0.98105057 1.67306147 0.50430862 0.70301568 97 98 99 100 101 102 -2.29755236 -0.48176532 -1.55421352 -0.01457641 0.10428325 0.81015464 103 104 105 106 107 108 -1.69440630 2.00599111 -3.37063442 -0.69301706 -1.56596582 -1.25746386 109 110 111 112 113 114 -2.01671378 -2.46975003 -0.96520980 -1.19313822 -0.01379818 0.98028720 115 116 117 118 119 120 0.59881626 2.64655670 3.12688819 -1.64720197 0.63693340 3.00385049 121 122 123 124 125 126 0.44458568 0.94721013 -2.80650618 -1.27479802 1.49134015 1.43057192 127 128 129 130 131 132 0.15892812 -0.67963002 -0.26822600 -1.69832608 -0.07668110 1.93610133 133 134 135 136 137 138 -1.12358065 -1.27845537 2.43589280 1.82580825 1.15304570 -3.37750924 139 140 141 142 143 144 5.29464335 -1.02276607 0.11782665 -0.20701270 2.59238266 -0.90462629 145 146 147 148 149 150 0.87887295 -0.39117521 -3.26231222 -4.27745052 0.83909024 2.03585222 151 152 153 154 155 156 -0.17996427 1.03092037 -0.68624860 0.72146643 0.66443140 2.03911872 > postscript(file="/var/www/html/freestat/rcomp/tmp/6mkd11291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > dum <- cbind(lag(myerror,k=1),myerror) > dum Time Series: Start = 0 End = 156 Frequency = 1 lag(myerror, k = 1) myerror 0 1.79509733 NA 1 0.94980238 1.79509733 2 1.87153577 0.94980238 3 0.54976103 1.87153577 4 -0.97192460 0.54976103 5 2.63877668 -0.97192460 6 -1.92686083 2.63877668 7 -1.30940794 -1.92686083 8 -1.02099786 -1.30940794 9 3.45663378 -1.02099786 10 -2.01494858 3.45663378 11 -1.18383172 -2.01494858 12 2.70084073 -1.18383172 13 -4.48327347 2.70084073 14 -0.27816030 -4.48327347 15 0.17792392 -0.27816030 16 -1.83473119 0.17792392 17 -0.86741282 -1.83473119 18 1.43176030 -0.86741282 19 -3.34255000 1.43176030 20 2.22067907 -3.34255000 21 0.92623737 2.22067907 22 -0.58033883 0.92623737 23 2.25839475 -0.58033883 24 0.91566386 2.25839475 25 0.47542513 0.91566386 26 -5.30873535 0.47542513 27 0.51659678 -5.30873535 28 -0.45298795 0.51659678 29 4.83054800 -0.45298795 30 4.24837473 4.83054800 31 -1.62484908 4.24837473 32 -0.56978303 -1.62484908 33 1.39209830 -0.56978303 34 -1.22813575 1.39209830 35 1.81509285 -1.22813575 36 -1.15404134 1.81509285 37 0.28692610 -1.15404134 38 -0.15454691 0.28692610 39 0.77122638 -0.15454691 40 0.88481507 0.77122638 41 6.92941668 0.88481507 42 -4.71510529 6.92941668 43 -2.31343802 -4.71510529 44 -0.14870526 -2.31343802 45 1.78249253 -0.14870526 46 2.75246916 1.78249253 47 0.97120603 2.75246916 48 -2.39958743 0.97120603 49 -1.81784166 -2.39958743 50 -0.88864535 -1.81784166 51 -5.99104422 -0.88864535 52 0.15048096 -5.99104422 53 -2.43316644 0.15048096 54 2.19089361 -2.43316644 55 -0.87611803 2.19089361 56 -0.10923356 -0.87611803 57 1.82524294 -0.10923356 58 -2.27762915 1.82524294 59 0.34245529 -2.27762915 60 -2.15112060 0.34245529 61 2.05358897 -2.15112060 62 1.08695261 2.05358897 63 2.33858579 1.08695261 64 -1.25072250 2.33858579 65 1.61050142 -1.25072250 66 -2.29540026 1.61050142 67 2.57670256 -2.29540026 68 1.98241895 2.57670256 69 -0.82162780 1.98241895 70 2.06165169 -0.82162780 71 1.02621245 2.06165169 72 -2.05750378 1.02621245 73 -3.13465937 -2.05750378 74 -0.24629106 -3.13465937 75 -1.46055649 -0.24629106 76 -0.81585098 -1.46055649 77 -0.12567040 -0.81585098 78 2.90136299 -0.12567040 79 -2.02152943 2.90136299 80 -2.46530619 -2.02152943 81 1.36971323 -2.46530619 82 -0.04344332 1.36971323 83 -0.99967099 -0.04344332 84 3.60423992 -0.99967099 85 -0.45526880 3.60423992 86 -0.09895259 -0.45526880 87 -0.38273359 -0.09895259 88 0.88736740 -0.38273359 89 -0.82713604 0.88736740 90 0.98505859 -0.82713604 91 -3.67435902 0.98505859 92 0.98105057 -3.67435902 93 1.67306147 0.98105057 94 0.50430862 1.67306147 95 0.70301568 0.50430862 96 -2.29755236 0.70301568 97 -0.48176532 -2.29755236 98 -1.55421352 -0.48176532 99 -0.01457641 -1.55421352 100 0.10428325 -0.01457641 101 0.81015464 0.10428325 102 -1.69440630 0.81015464 103 2.00599111 -1.69440630 104 -3.37063442 2.00599111 105 -0.69301706 -3.37063442 106 -1.56596582 -0.69301706 107 -1.25746386 -1.56596582 108 -2.01671378 -1.25746386 109 -2.46975003 -2.01671378 110 -0.96520980 -2.46975003 111 -1.19313822 -0.96520980 112 -0.01379818 -1.19313822 113 0.98028720 -0.01379818 114 0.59881626 0.98028720 115 2.64655670 0.59881626 116 3.12688819 2.64655670 117 -1.64720197 3.12688819 118 0.63693340 -1.64720197 119 3.00385049 0.63693340 120 0.44458568 3.00385049 121 0.94721013 0.44458568 122 -2.80650618 0.94721013 123 -1.27479802 -2.80650618 124 1.49134015 -1.27479802 125 1.43057192 1.49134015 126 0.15892812 1.43057192 127 -0.67963002 0.15892812 128 -0.26822600 -0.67963002 129 -1.69832608 -0.26822600 130 -0.07668110 -1.69832608 131 1.93610133 -0.07668110 132 -1.12358065 1.93610133 133 -1.27845537 -1.12358065 134 2.43589280 -1.27845537 135 1.82580825 2.43589280 136 1.15304570 1.82580825 137 -3.37750924 1.15304570 138 5.29464335 -3.37750924 139 -1.02276607 5.29464335 140 0.11782665 -1.02276607 141 -0.20701270 0.11782665 142 2.59238266 -0.20701270 143 -0.90462629 2.59238266 144 0.87887295 -0.90462629 145 -0.39117521 0.87887295 146 -3.26231222 -0.39117521 147 -4.27745052 -3.26231222 148 0.83909024 -4.27745052 149 2.03585222 0.83909024 150 -0.17996427 2.03585222 151 1.03092037 -0.17996427 152 -0.68624860 1.03092037 153 0.72146643 -0.68624860 154 0.66443140 0.72146643 155 2.03911872 0.66443140 156 NA 2.03911872 > dum1 <- dum[2:length(myerror),] > dum1 lag(myerror, k = 1) myerror [1,] 0.94980238 1.79509733 [2,] 1.87153577 0.94980238 [3,] 0.54976103 1.87153577 [4,] -0.97192460 0.54976103 [5,] 2.63877668 -0.97192460 [6,] -1.92686083 2.63877668 [7,] -1.30940794 -1.92686083 [8,] -1.02099786 -1.30940794 [9,] 3.45663378 -1.02099786 [10,] -2.01494858 3.45663378 [11,] -1.18383172 -2.01494858 [12,] 2.70084073 -1.18383172 [13,] -4.48327347 2.70084073 [14,] -0.27816030 -4.48327347 [15,] 0.17792392 -0.27816030 [16,] -1.83473119 0.17792392 [17,] -0.86741282 -1.83473119 [18,] 1.43176030 -0.86741282 [19,] -3.34255000 1.43176030 [20,] 2.22067907 -3.34255000 [21,] 0.92623737 2.22067907 [22,] -0.58033883 0.92623737 [23,] 2.25839475 -0.58033883 [24,] 0.91566386 2.25839475 [25,] 0.47542513 0.91566386 [26,] -5.30873535 0.47542513 [27,] 0.51659678 -5.30873535 [28,] -0.45298795 0.51659678 [29,] 4.83054800 -0.45298795 [30,] 4.24837473 4.83054800 [31,] -1.62484908 4.24837473 [32,] -0.56978303 -1.62484908 [33,] 1.39209830 -0.56978303 [34,] -1.22813575 1.39209830 [35,] 1.81509285 -1.22813575 [36,] -1.15404134 1.81509285 [37,] 0.28692610 -1.15404134 [38,] -0.15454691 0.28692610 [39,] 0.77122638 -0.15454691 [40,] 0.88481507 0.77122638 [41,] 6.92941668 0.88481507 [42,] -4.71510529 6.92941668 [43,] -2.31343802 -4.71510529 [44,] -0.14870526 -2.31343802 [45,] 1.78249253 -0.14870526 [46,] 2.75246916 1.78249253 [47,] 0.97120603 2.75246916 [48,] -2.39958743 0.97120603 [49,] -1.81784166 -2.39958743 [50,] -0.88864535 -1.81784166 [51,] -5.99104422 -0.88864535 [52,] 0.15048096 -5.99104422 [53,] -2.43316644 0.15048096 [54,] 2.19089361 -2.43316644 [55,] -0.87611803 2.19089361 [56,] -0.10923356 -0.87611803 [57,] 1.82524294 -0.10923356 [58,] -2.27762915 1.82524294 [59,] 0.34245529 -2.27762915 [60,] -2.15112060 0.34245529 [61,] 2.05358897 -2.15112060 [62,] 1.08695261 2.05358897 [63,] 2.33858579 1.08695261 [64,] -1.25072250 2.33858579 [65,] 1.61050142 -1.25072250 [66,] -2.29540026 1.61050142 [67,] 2.57670256 -2.29540026 [68,] 1.98241895 2.57670256 [69,] -0.82162780 1.98241895 [70,] 2.06165169 -0.82162780 [71,] 1.02621245 2.06165169 [72,] -2.05750378 1.02621245 [73,] -3.13465937 -2.05750378 [74,] -0.24629106 -3.13465937 [75,] -1.46055649 -0.24629106 [76,] -0.81585098 -1.46055649 [77,] -0.12567040 -0.81585098 [78,] 2.90136299 -0.12567040 [79,] -2.02152943 2.90136299 [80,] -2.46530619 -2.02152943 [81,] 1.36971323 -2.46530619 [82,] -0.04344332 1.36971323 [83,] -0.99967099 -0.04344332 [84,] 3.60423992 -0.99967099 [85,] -0.45526880 3.60423992 [86,] -0.09895259 -0.45526880 [87,] -0.38273359 -0.09895259 [88,] 0.88736740 -0.38273359 [89,] -0.82713604 0.88736740 [90,] 0.98505859 -0.82713604 [91,] -3.67435902 0.98505859 [92,] 0.98105057 -3.67435902 [93,] 1.67306147 0.98105057 [94,] 0.50430862 1.67306147 [95,] 0.70301568 0.50430862 [96,] -2.29755236 0.70301568 [97,] -0.48176532 -2.29755236 [98,] -1.55421352 -0.48176532 [99,] -0.01457641 -1.55421352 [100,] 0.10428325 -0.01457641 [101,] 0.81015464 0.10428325 [102,] -1.69440630 0.81015464 [103,] 2.00599111 -1.69440630 [104,] -3.37063442 2.00599111 [105,] -0.69301706 -3.37063442 [106,] -1.56596582 -0.69301706 [107,] -1.25746386 -1.56596582 [108,] -2.01671378 -1.25746386 [109,] -2.46975003 -2.01671378 [110,] -0.96520980 -2.46975003 [111,] -1.19313822 -0.96520980 [112,] -0.01379818 -1.19313822 [113,] 0.98028720 -0.01379818 [114,] 0.59881626 0.98028720 [115,] 2.64655670 0.59881626 [116,] 3.12688819 2.64655670 [117,] -1.64720197 3.12688819 [118,] 0.63693340 -1.64720197 [119,] 3.00385049 0.63693340 [120,] 0.44458568 3.00385049 [121,] 0.94721013 0.44458568 [122,] -2.80650618 0.94721013 [123,] -1.27479802 -2.80650618 [124,] 1.49134015 -1.27479802 [125,] 1.43057192 1.49134015 [126,] 0.15892812 1.43057192 [127,] -0.67963002 0.15892812 [128,] -0.26822600 -0.67963002 [129,] -1.69832608 -0.26822600 [130,] -0.07668110 -1.69832608 [131,] 1.93610133 -0.07668110 [132,] -1.12358065 1.93610133 [133,] -1.27845537 -1.12358065 [134,] 2.43589280 -1.27845537 [135,] 1.82580825 2.43589280 [136,] 1.15304570 1.82580825 [137,] -3.37750924 1.15304570 [138,] 5.29464335 -3.37750924 [139,] -1.02276607 5.29464335 [140,] 0.11782665 -1.02276607 [141,] -0.20701270 0.11782665 [142,] 2.59238266 -0.20701270 [143,] -0.90462629 2.59238266 [144,] 0.87887295 -0.90462629 [145,] -0.39117521 0.87887295 [146,] -3.26231222 -0.39117521 [147,] -4.27745052 -3.26231222 [148,] 0.83909024 -4.27745052 [149,] 2.03585222 0.83909024 [150,] -0.17996427 2.03585222 [151,] 1.03092037 -0.17996427 [152,] -0.68624860 1.03092037 [153,] 0.72146643 -0.68624860 [154,] 0.66443140 0.72146643 [155,] 2.03911872 0.66443140 > z <- as.data.frame(dum1) > z lag(myerror, k = 1) myerror 1 0.94980238 1.79509733 2 1.87153577 0.94980238 3 0.54976103 1.87153577 4 -0.97192460 0.54976103 5 2.63877668 -0.97192460 6 -1.92686083 2.63877668 7 -1.30940794 -1.92686083 8 -1.02099786 -1.30940794 9 3.45663378 -1.02099786 10 -2.01494858 3.45663378 11 -1.18383172 -2.01494858 12 2.70084073 -1.18383172 13 -4.48327347 2.70084073 14 -0.27816030 -4.48327347 15 0.17792392 -0.27816030 16 -1.83473119 0.17792392 17 -0.86741282 -1.83473119 18 1.43176030 -0.86741282 19 -3.34255000 1.43176030 20 2.22067907 -3.34255000 21 0.92623737 2.22067907 22 -0.58033883 0.92623737 23 2.25839475 -0.58033883 24 0.91566386 2.25839475 25 0.47542513 0.91566386 26 -5.30873535 0.47542513 27 0.51659678 -5.30873535 28 -0.45298795 0.51659678 29 4.83054800 -0.45298795 30 4.24837473 4.83054800 31 -1.62484908 4.24837473 32 -0.56978303 -1.62484908 33 1.39209830 -0.56978303 34 -1.22813575 1.39209830 35 1.81509285 -1.22813575 36 -1.15404134 1.81509285 37 0.28692610 -1.15404134 38 -0.15454691 0.28692610 39 0.77122638 -0.15454691 40 0.88481507 0.77122638 41 6.92941668 0.88481507 42 -4.71510529 6.92941668 43 -2.31343802 -4.71510529 44 -0.14870526 -2.31343802 45 1.78249253 -0.14870526 46 2.75246916 1.78249253 47 0.97120603 2.75246916 48 -2.39958743 0.97120603 49 -1.81784166 -2.39958743 50 -0.88864535 -1.81784166 51 -5.99104422 -0.88864535 52 0.15048096 -5.99104422 53 -2.43316644 0.15048096 54 2.19089361 -2.43316644 55 -0.87611803 2.19089361 56 -0.10923356 -0.87611803 57 1.82524294 -0.10923356 58 -2.27762915 1.82524294 59 0.34245529 -2.27762915 60 -2.15112060 0.34245529 61 2.05358897 -2.15112060 62 1.08695261 2.05358897 63 2.33858579 1.08695261 64 -1.25072250 2.33858579 65 1.61050142 -1.25072250 66 -2.29540026 1.61050142 67 2.57670256 -2.29540026 68 1.98241895 2.57670256 69 -0.82162780 1.98241895 70 2.06165169 -0.82162780 71 1.02621245 2.06165169 72 -2.05750378 1.02621245 73 -3.13465937 -2.05750378 74 -0.24629106 -3.13465937 75 -1.46055649 -0.24629106 76 -0.81585098 -1.46055649 77 -0.12567040 -0.81585098 78 2.90136299 -0.12567040 79 -2.02152943 2.90136299 80 -2.46530619 -2.02152943 81 1.36971323 -2.46530619 82 -0.04344332 1.36971323 83 -0.99967099 -0.04344332 84 3.60423992 -0.99967099 85 -0.45526880 3.60423992 86 -0.09895259 -0.45526880 87 -0.38273359 -0.09895259 88 0.88736740 -0.38273359 89 -0.82713604 0.88736740 90 0.98505859 -0.82713604 91 -3.67435902 0.98505859 92 0.98105057 -3.67435902 93 1.67306147 0.98105057 94 0.50430862 1.67306147 95 0.70301568 0.50430862 96 -2.29755236 0.70301568 97 -0.48176532 -2.29755236 98 -1.55421352 -0.48176532 99 -0.01457641 -1.55421352 100 0.10428325 -0.01457641 101 0.81015464 0.10428325 102 -1.69440630 0.81015464 103 2.00599111 -1.69440630 104 -3.37063442 2.00599111 105 -0.69301706 -3.37063442 106 -1.56596582 -0.69301706 107 -1.25746386 -1.56596582 108 -2.01671378 -1.25746386 109 -2.46975003 -2.01671378 110 -0.96520980 -2.46975003 111 -1.19313822 -0.96520980 112 -0.01379818 -1.19313822 113 0.98028720 -0.01379818 114 0.59881626 0.98028720 115 2.64655670 0.59881626 116 3.12688819 2.64655670 117 -1.64720197 3.12688819 118 0.63693340 -1.64720197 119 3.00385049 0.63693340 120 0.44458568 3.00385049 121 0.94721013 0.44458568 122 -2.80650618 0.94721013 123 -1.27479802 -2.80650618 124 1.49134015 -1.27479802 125 1.43057192 1.49134015 126 0.15892812 1.43057192 127 -0.67963002 0.15892812 128 -0.26822600 -0.67963002 129 -1.69832608 -0.26822600 130 -0.07668110 -1.69832608 131 1.93610133 -0.07668110 132 -1.12358065 1.93610133 133 -1.27845537 -1.12358065 134 2.43589280 -1.27845537 135 1.82580825 2.43589280 136 1.15304570 1.82580825 137 -3.37750924 1.15304570 138 5.29464335 -3.37750924 139 -1.02276607 5.29464335 140 0.11782665 -1.02276607 141 -0.20701270 0.11782665 142 2.59238266 -0.20701270 143 -0.90462629 2.59238266 144 0.87887295 -0.90462629 145 -0.39117521 0.87887295 146 -3.26231222 -0.39117521 147 -4.27745052 -3.26231222 148 0.83909024 -4.27745052 149 2.03585222 0.83909024 150 -0.17996427 2.03585222 151 1.03092037 -0.17996427 152 -0.68624860 1.03092037 153 0.72146643 -0.68624860 154 0.66443140 0.72146643 155 2.03911872 0.66443140 > 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/freestat/rcomp/tmp/7xbum1291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(mysum$resid, lag.max=length(mysum$resid)/2, main='Residual Autocorrelation Function') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/freestat/rcomp/tmp/8xbum1291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > pacf(mysum$resid, lag.max=length(mysum$resid)/2, main='Residual Partial Autocorrelation Function') > grid() > dev.off() null device 1 > postscript(file="/var/www/html/freestat/rcomp/tmp/97kt71291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > opar <- par(mfrow = c(2,2), oma = c(0, 0, 1.1, 0)) > plot(mylm, las = 1, sub='Residual Diagnostics') > par(opar) > dev.off() null device 1 > if (n > n25) { + postscript(file="/var/www/html/freestat/rcomp/tmp/107kt71291316906.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) + plot(kp3:nmkm3,gqarr[,2], main='Goldfeld-Quandt test',ylab='2-sided p-value',xlab='breakpoint') + grid() + dev.off() + } null device 1 > > #Note: the /var/www/html/freestat/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/html/freestat/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a, 'Multiple Linear Regression - Estimated Regression Equation', 1, TRUE) > a<-table.row.end(a) > myeq <- colnames(x)[1] > myeq <- paste(myeq, '[t] = ', sep='') > for (i in 1:k){ + if (mysum$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/freestat/rcomp/tmp/11mu9y1291316906.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/freestat/rcomp/tmp/12pc7m1291316906.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/freestat/rcomp/tmp/1334nd1291316906.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/freestat/rcomp/tmp/14on401291316906.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/freestat/rcomp/tmp/15a5261291316906.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/freestat/rcomp/tmp/166f0f1291316906.tab") + } > try(system("convert tmp/1jjwd1291316906.ps tmp/1jjwd1291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/2tswy1291316906.ps tmp/2tswy1291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/3tswy1291316906.ps tmp/3tswy1291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/4mkd11291316906.ps tmp/4mkd11291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/5mkd11291316906.ps tmp/5mkd11291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/6mkd11291316906.ps tmp/6mkd11291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/7xbum1291316906.ps tmp/7xbum1291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/8xbum1291316906.ps tmp/8xbum1291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/97kt71291316906.ps tmp/97kt71291316906.png",intern=TRUE)) character(0) > try(system("convert tmp/107kt71291316906.ps tmp/107kt71291316906.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 6.071 2.729 6.446