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Type 'q()' to quit R. > x <- array(list(12,408,187,-3,5,2,-24,2,1,-11,250,133,1,16,10,17,159,55,10,336,70,28,138,46,-16,97,105,1,1272,321,5,88,17,5,201,104,9,102,35,11,127,76,7,209,103,7,247,178,47,145,31,10,3517,1347,21,27,14,9,101,91,10,2,1,101,5,2,45,100,65,11,34,9,38,1418,418,39,206,82,44,130,117,14,865,137,-5,229,162,-24,1,1,6,229,87,0,17,3,-3,92,16),dim=c(3,33),dimnames=list(c('nr','omzet','Personeel '),1:33)) > y <- array(NA,dim=c(3,33),dimnames=list(c('nr','omzet','Personeel '),1:33)) > for (i in 1:dim(x)[1]) + { + for (j in 1:dim(x)[2]) + { + y[i,j] <- as.numeric(x[i,j]) + } + } > par3 = 'No Linear Trend' > par2 = 'Do not include Seasonal 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 > 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 nr omzet Personeel\r 1 12 408 187 2 -3 5 2 3 -24 2 1 4 -11 250 133 5 1 16 10 6 17 159 55 7 10 336 70 8 28 138 46 9 -16 97 105 10 1 1272 321 11 5 88 17 12 5 201 104 13 9 102 35 14 11 127 76 15 7 209 103 16 7 247 178 17 47 145 31 18 10 3517 1347 19 21 27 14 20 9 101 91 21 10 2 1 22 101 5 2 23 45 100 65 24 11 34 9 25 38 1418 418 26 39 206 82 27 44 130 117 28 14 865 137 29 -5 229 162 30 -24 1 1 31 6 229 87 32 0 17 3 33 -3 92 16 > k <- length(x[1,]) > df <- as.data.frame(x) > (mylm <- lm(df)) Call: lm(formula = df) Coefficients: (Intercept) omzet `Personeel\r` 12.84601 0.01356 -0.03678 > (mysum <- summary(mylm)) Call: lm(formula = df) Residuals: Min 1Q Median 3Q Max -36.836 -12.966 -3.942 4.020 88.160 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 12.84601 4.82008 2.665 0.0123 * omzet 0.01356 0.02800 0.484 0.6316 `Personeel\r` -0.03678 0.07766 -0.474 0.6392 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 24.57 on 30 degrees of freedom Multiple R-squared: 0.007768, Adjusted R-squared: -0.05838 F-statistic: 0.1174 on 2 and 30 DF, p-value: 0.8896 > 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,] 0.1049850278 0.209970056 0.8950150 [2,] 0.1199183482 0.239836696 0.8800817 [3,] 0.1706523213 0.341304643 0.8293477 [4,] 0.1053255073 0.210651015 0.8946745 [5,] 0.1320015829 0.264003166 0.8679984 [6,] 0.0754231178 0.150846236 0.9245769 [7,] 0.0417861699 0.083572340 0.9582138 [8,] 0.0220851975 0.044170395 0.9779148 [9,] 0.0120974378 0.024194876 0.9879026 [10,] 0.0058021216 0.011604243 0.9941979 [11,] 0.0027182359 0.005436472 0.9972818 [12,] 0.0154945729 0.030989146 0.9845054 [13,] 0.0088506089 0.017701218 0.9911494 [14,] 0.0050661826 0.010132365 0.9949338 [15,] 0.0023734707 0.004746941 0.9976265 [16,] 0.0009759063 0.001951813 0.9990241 [17,] 0.6097782284 0.780443543 0.3902218 [18,] 0.7098933434 0.580213313 0.2901067 [19,] 0.5981188084 0.803762383 0.4018812 [20,] 0.4904736810 0.980947362 0.5095263 [21,] 0.5569168008 0.886166398 0.4430832 [22,] 0.8957134302 0.208573140 0.1042866 > postscript(file="/var/www/rcomp/tmp/19eyj1322149591.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$resid) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/2gpub1322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(mysum$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/rcomp/tmp/3jjt31322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(mysum$resid, main='Residual Histogram', xlab='values of Residuals') > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/4xok11322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > densityplot(~mysum$resid,col='black',main='Residual Density Plot', xlab='values of Residuals') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/5wko61322149591.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 = 33 Frequency = 1 1 2 3 4 5 6 0.4974808 -15.8402767 -36.8363632 -22.3454486 -11.6952506 4.0201304 7 8 9 10 11 12 -4.8290375 14.9739667 -26.2999462 -17.2935540 -8.4144158 -6.7473952 13 14 15 16 17 18 -3.9422927 -0.7734596 -4.8926872 -2.6497038 33.3273337 -1.0098445 19 20 21 22 23 24 8.3026596 -1.8691079 -2.8363632 88.1597233 33.1882037 -1.9761840 25 26 27 28 29 30 21.2936395 26.3756474 33.6937846 -5.5402760 -14.9940125 -36.8227991 31 32 33 -6.7524330 -12.9662673 -16.5054513 > postscript(file="/var/www/rcomp/tmp/673g81322149591.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 = 33 Frequency = 1 lag(myerror, k = 1) myerror 0 0.4974808 NA 1 -15.8402767 0.4974808 2 -36.8363632 -15.8402767 3 -22.3454486 -36.8363632 4 -11.6952506 -22.3454486 5 4.0201304 -11.6952506 6 -4.8290375 4.0201304 7 14.9739667 -4.8290375 8 -26.2999462 14.9739667 9 -17.2935540 -26.2999462 10 -8.4144158 -17.2935540 11 -6.7473952 -8.4144158 12 -3.9422927 -6.7473952 13 -0.7734596 -3.9422927 14 -4.8926872 -0.7734596 15 -2.6497038 -4.8926872 16 33.3273337 -2.6497038 17 -1.0098445 33.3273337 18 8.3026596 -1.0098445 19 -1.8691079 8.3026596 20 -2.8363632 -1.8691079 21 88.1597233 -2.8363632 22 33.1882037 88.1597233 23 -1.9761840 33.1882037 24 21.2936395 -1.9761840 25 26.3756474 21.2936395 26 33.6937846 26.3756474 27 -5.5402760 33.6937846 28 -14.9940125 -5.5402760 29 -36.8227991 -14.9940125 30 -6.7524330 -36.8227991 31 -12.9662673 -6.7524330 32 -16.5054513 -12.9662673 33 NA -16.5054513 > dum1 <- dum[2:length(myerror),] > dum1 lag(myerror, k = 1) myerror [1,] -15.8402767 0.4974808 [2,] -36.8363632 -15.8402767 [3,] -22.3454486 -36.8363632 [4,] -11.6952506 -22.3454486 [5,] 4.0201304 -11.6952506 [6,] -4.8290375 4.0201304 [7,] 14.9739667 -4.8290375 [8,] -26.2999462 14.9739667 [9,] -17.2935540 -26.2999462 [10,] -8.4144158 -17.2935540 [11,] -6.7473952 -8.4144158 [12,] -3.9422927 -6.7473952 [13,] -0.7734596 -3.9422927 [14,] -4.8926872 -0.7734596 [15,] -2.6497038 -4.8926872 [16,] 33.3273337 -2.6497038 [17,] -1.0098445 33.3273337 [18,] 8.3026596 -1.0098445 [19,] -1.8691079 8.3026596 [20,] -2.8363632 -1.8691079 [21,] 88.1597233 -2.8363632 [22,] 33.1882037 88.1597233 [23,] -1.9761840 33.1882037 [24,] 21.2936395 -1.9761840 [25,] 26.3756474 21.2936395 [26,] 33.6937846 26.3756474 [27,] -5.5402760 33.6937846 [28,] -14.9940125 -5.5402760 [29,] -36.8227991 -14.9940125 [30,] -6.7524330 -36.8227991 [31,] -12.9662673 -6.7524330 [32,] -16.5054513 -12.9662673 > z <- as.data.frame(dum1) > z lag(myerror, k = 1) myerror 1 -15.8402767 0.4974808 2 -36.8363632 -15.8402767 3 -22.3454486 -36.8363632 4 -11.6952506 -22.3454486 5 4.0201304 -11.6952506 6 -4.8290375 4.0201304 7 14.9739667 -4.8290375 8 -26.2999462 14.9739667 9 -17.2935540 -26.2999462 10 -8.4144158 -17.2935540 11 -6.7473952 -8.4144158 12 -3.9422927 -6.7473952 13 -0.7734596 -3.9422927 14 -4.8926872 -0.7734596 15 -2.6497038 -4.8926872 16 33.3273337 -2.6497038 17 -1.0098445 33.3273337 18 8.3026596 -1.0098445 19 -1.8691079 8.3026596 20 -2.8363632 -1.8691079 21 88.1597233 -2.8363632 22 33.1882037 88.1597233 23 -1.9761840 33.1882037 24 21.2936395 -1.9761840 25 26.3756474 21.2936395 26 33.6937846 26.3756474 27 -5.5402760 33.6937846 28 -14.9940125 -5.5402760 29 -36.8227991 -14.9940125 30 -6.7524330 -36.8227991 31 -12.9662673 -6.7524330 32 -16.5054513 -12.9662673 > 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/rcomp/tmp/72viy1322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(mysum$resid, lag.max=length(mysum$resid)/2, main='Residual Autocorrelation Function') > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/87cyh1322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > pacf(mysum$resid, lag.max=length(mysum$resid)/2, main='Residual Partial Autocorrelation Function') > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/9rw081322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > opar <- par(mfrow = c(2,2), oma = c(0, 0, 1.1, 0)) > plot(mylm, las = 1, sub='Residual Diagnostics') > par(opar) > dev.off() null device 1 > if (n > n25) { + postscript(file="/var/www/rcomp/tmp/10mvj61322149591.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) + plot(kp3:nmkm3,gqarr[,2], main='Goldfeld-Quandt test',ylab='2-sided p-value',xlab='breakpoint') + grid() + dev.off() + } null device 1 > > #Note: the /var/www/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a, 'Multiple Linear Regression - Estimated Regression Equation', 1, TRUE) > a<-table.row.end(a) > myeq <- colnames(x)[1] > myeq <- paste(myeq, '[t] = ', sep='') > for (i in 1:k){ + if (mysum$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/rcomp/tmp/11ec9b1322149591.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/rcomp/tmp/120udw1322149591.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/rcomp/tmp/13e13m1322149591.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/rcomp/tmp/145ju81322149591.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/rcomp/tmp/15fc6n1322149591.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/rcomp/tmp/16p54g1322149591.tab") + } > > try(system("convert tmp/19eyj1322149591.ps tmp/19eyj1322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/2gpub1322149591.ps tmp/2gpub1322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/3jjt31322149591.ps tmp/3jjt31322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/4xok11322149591.ps tmp/4xok11322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/5wko61322149591.ps tmp/5wko61322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/673g81322149591.ps tmp/673g81322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/72viy1322149591.ps tmp/72viy1322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/87cyh1322149591.ps tmp/87cyh1322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/9rw081322149591.ps tmp/9rw081322149591.png",intern=TRUE)) character(0) > try(system("convert tmp/10mvj61322149591.ps tmp/10mvj61322149591.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 4.420 0.380 4.779