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summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00
## Warning: package 'tidyverse' was built under R version 4.1.3
## -- Attaching packages --------------------------------------- tidyverse 1.3.1 --
## v ggplot2 3.3.5     v purrr   0.3.4
## v tibble  3.1.6     v dplyr   1.0.7
## v tidyr   1.2.0     v stringr 1.4.0
## v readr   2.1.2     v forcats 0.5.1
## -- Conflicts ------------------------------------------ tidyverse_conflicts() --
## x dplyr::filter() masks stats::filter()
## x dplyr::lag()    masks stats::lag()
## Warning: package 'lubridate' was built under R version 4.1.3
## 
## Attaching package: 'lubridate'
## The following objects are masked from 'package:base':
## 
##     date, intersect, setdiff, union
## Warning: package 'car' was built under R version 4.1.3
## Loading required package: carData
## 
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##     some
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## Registered S3 method overwritten by 'quantmod':
##   method            from
##   as.zoo.data.frame zoo
## 
## Attaching package: 'aTSA'
## The following objects are masked from 'package:tseries':
## 
##     adf.test, kpss.test, pp.test
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## 
##     identify
## 
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## Loading required package: MASS
## 
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## 
##     select
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## Loading required package: zoo
## 
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## 
##     as.Date, as.Date.numeric
## Loading required package: sandwich
## 
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##     boundary
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##     arch.test
## Warning: package 'mFilter' was built under R version 4.1.3
## Warning: package 'dynlm' was built under R version 4.1.3
## Warning: package 'readxl' was built under R version 4.1.3
## [1] "Year"     "Quarter"  "tiempo"   "DPI"      "GDP"      "PCE"      "CP"      
## [8] "DIVIDEND"
## [1] "tbl_df"     "tbl"        "data.frame"

## AIC(n)  HQ(n)  SC(n) FPE(n) 
##      6      3      1      6
##                    1             2             3             4             5
## AIC(n) -1.855753e+01 -1.856794e+01 -1.872222e+01 -1.871195e+01 -1.876550e+01
## HQ(n)  -1.848511e+01 -1.845930e+01 -1.857737e+01 -1.853089e+01 -1.854823e+01
## SC(n)  -1.837928e+01 -1.830056e+01 -1.836571e+01 -1.826632e+01 -1.823075e+01
## FPE(n)  8.721332e-09  8.631923e-09  7.399231e-09  7.477904e-09  7.091277e-09
##                    6             7             8
## AIC(n) -1.879237e+01 -1.874658e+01 -1.874820e+01
## HQ(n)  -1.853888e+01 -1.845688e+01 -1.842229e+01
## SC(n)  -1.816848e+01 -1.803357e+01 -1.794607e+01
## FPE(n)  6.907847e-09  7.237794e-09  7.234190e-09
## 
## VAR Estimation Results:
## ========================= 
## Endogenous variables: PCE, DPI 
## Deterministic variables: const 
## Sample size: 133 
## Log Likelihood: 876.289 
## Roots of the characteristic polynomial:
## 0.9987 0.6775 0.4343 0.4343 0.4321 0.4321
## Call:
## VAR(y = datos1, p = 3, type = "const", exogen = NULL)
## 
## 
## Estimation results for equation PCE: 
## ==================================== 
## PCE = PCE.l1 + DPI.l1 + PCE.l2 + DPI.l2 + PCE.l3 + DPI.l3 + const 
## 
##         Estimate Std. Error t value Pr(>|t|)    
## PCE.l1  0.776760   0.105025   7.396 1.73e-11 ***
## DPI.l1  0.431260   0.111393   3.872 0.000173 ***
## PCE.l2  0.008803   0.117820   0.075 0.940558    
## DPI.l2 -0.259850   0.133200  -1.951 0.053297 .  
## PCE.l3 -0.051678   0.095506  -0.541 0.589395    
## DPI.l3  0.103407   0.110735   0.934 0.352179    
## const  -0.028137   0.024918  -1.129 0.260963    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## 
## Residual standard error: 0.01073 on 126 degrees of freedom
## Multiple R-Squared: 0.9993,  Adjusted R-squared: 0.9992 
## F-statistic: 2.818e+04 on 6 and 126 DF,  p-value: < 2.2e-16 
## 
## 
## Estimation results for equation DPI: 
## ==================================== 
## DPI = PCE.l1 + DPI.l1 + PCE.l2 + DPI.l2 + PCE.l3 + DPI.l3 + const 
## 
##        Estimate Std. Error t value Pr(>|t|)    
## PCE.l1  0.21003    0.09432   2.227   0.0277 *  
## DPI.l1  0.83352    0.10004   8.332 1.15e-13 ***
## PCE.l2  0.04421    0.10581   0.418   0.6768    
## DPI.l2  0.24143    0.11963   2.018   0.0457 *  
## PCE.l3 -0.12637    0.08577  -1.473   0.1432    
## DPI.l3 -0.20835    0.09945  -2.095   0.0382 *  
## const   0.03307    0.02238   1.478   0.1419    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## 
## Residual standard error: 0.009638 on 126 degrees of freedom
## Multiple R-Squared: 0.9994,  Adjusted R-squared: 0.9993 
## F-statistic: 3.244e+04 on 6 and 126 DF,  p-value: < 2.2e-16 
## 
## 
## 
## Covariance matrix of residuals:
##           PCE       DPI
## PCE 1.152e-04 5.887e-05
## DPI 5.887e-05 9.288e-05
## 
## Correlation matrix of residuals:
##        PCE    DPI
## PCE 1.0000 0.5692
## DPI 0.5692 1.0000
##               PCE           DPI
## 1   -2.690958e-02 -5.110853e-03
## 2   -3.852546e-03  6.234045e-04
## 3    1.664360e-02  9.162285e-03
## 4    6.035827e-03 -8.835974e-03
## 5   -4.276020e-03 -7.427321e-03
## 6   -3.023379e-02 -8.379138e-03
## 7   -8.217265e-03  1.112910e-02
## 8   -1.179868e-02  2.566674e-03
## 9   -7.966736e-03  7.166392e-03
## 10   5.211906e-02  1.387731e-02
## 11  -1.341815e-02 -1.887648e-03
## 12   2.440824e-03  3.277811e-02
## 13  -1.513620e-02 -3.313745e-02
## 14   6.190768e-04  2.715024e-03
## 15  -5.348381e-03 -2.550211e-02
## 16   1.044199e-02 -4.476189e-03
## 17  -7.426049e-03  1.398669e-03
## 18  -5.179358e-03 -8.183421e-03
## 19   6.566826e-03  1.030462e-02
## 20   8.540921e-03 -2.797782e-03
## 21   1.548295e-02  1.936062e-02
## 22  -1.030522e-03  2.156576e-03
## 23   6.343558e-03 -1.041045e-02
## 24  -1.076616e-02 -1.470672e-02
## 25  -1.195108e-02 -1.646070e-02
## 26   8.610240e-04 -2.090404e-03
## 27  -6.702754e-03  7.031096e-03
## 28   7.555127e-05  6.562193e-03
## 29   8.542572e-03  1.227857e-02
## 30   1.226891e-03  1.204228e-02
## 31   8.258654e-03  7.651084e-03
## 32   5.073915e-03  1.151898e-04
## 33  -3.066012e-04 -9.026884e-04
## 34  -1.984279e-03 -8.830002e-03
## 35   2.144990e-03 -7.466940e-03
## 36  -3.070420e-03 -6.889657e-03
## 37   9.594790e-03  4.245500e-03
## 38  -5.933234e-03 -2.310897e-03
## 39  -4.325771e-04 -9.713120e-03
## 40  -1.401259e-04 -1.233067e-03
## 41  -1.339219e-02 -7.533312e-03
## 42  -1.621864e-02 -2.187067e-02
## 43   3.126538e-03  2.215694e-03
## 44   1.090094e-02  1.324253e-02
## 45   3.563767e-03  2.020308e-03
## 46  -1.019523e-03  3.297378e-03
## 47   8.108993e-03  7.145731e-03
## 48  -1.119136e-02  2.541427e-04
## 49  -4.580259e-03 -8.092247e-03
## 50   2.294802e-03  1.295275e-03
## 51  -6.514007e-03  5.147787e-03
## 52  -1.251704e-02 -1.157294e-02
## 53  -9.293120e-03 -6.975420e-03
## 54  -1.891140e-03 -3.650439e-03
## 55   6.766878e-03  8.323346e-03
## 56   1.915917e-03 -2.674041e-03
## 57   1.312412e-02  7.233119e-03
## 58  -6.944628e-04  4.034917e-04
## 59   3.386557e-03 -1.375338e-03
## 60  -3.115398e-03 -1.956857e-03
## 61  -3.351005e-04  4.306877e-03
## 62  -3.357689e-03 -8.947575e-04
## 63  -5.665659e-05  8.852383e-05
## 64   3.346169e-04  5.619492e-03
## 65   4.551459e-03  2.062048e-04
## 66   1.100448e-02  8.729518e-03
## 67   1.507471e-02  7.135056e-03
## 68   4.552199e-03  3.382975e-03
## 69   1.353521e-03 -1.059650e-02
## 70   6.380324e-03  8.516387e-03
## 71  -1.197646e-03  3.315888e-03
## 72   1.857895e-02  5.142736e-03
## 73   1.118428e-02  1.579111e-02
## 74  -3.412891e-03  1.459234e-03
## 75  -7.753107e-03 -1.051057e-02
## 76   3.526238e-03  2.401627e-03
## 77  -2.924595e-05 -2.094098e-03
## 78   7.005480e-03 -4.503975e-03
## 79   1.221957e-03  3.174100e-03
## 80   4.061213e-04 -4.262140e-03
## 81   1.573838e-03 -4.887655e-03
## 82   1.092725e-02  1.418781e-02
## 83   5.369613e-03  6.730711e-03
## 84  -6.507664e-03  4.860290e-03
## 85  -7.308899e-03 -3.936356e-03
## 86  -8.626511e-03  2.903107e-03
## 87  -5.422667e-03  2.333813e-03
## 88   6.834643e-03 -1.431110e-03
## 89  -2.920334e-03 -1.080499e-03
## 90  -6.118100e-03 -2.506485e-03
## 91   7.443045e-03 -2.646923e-03
## 92   6.295117e-03 -5.892069e-04
## 93  -1.074697e-02 -1.350477e-02
## 94   1.675715e-02  9.146936e-03
## 95   5.614036e-03  2.399111e-03
## 96  -4.580881e-04 -6.851829e-03
## 97   4.701701e-03  5.959534e-03
## 98  -2.505754e-03  4.794420e-03
## 99  -4.837431e-04  8.975728e-03
## 100  7.267372e-03  8.022682e-03
## 101  2.747036e-02  1.263426e-02
## 102  6.793070e-04  3.622352e-03
## 103 -1.322221e-03 -1.569052e-02
## 104  1.462580e-03 -8.722905e-03
## 105  6.115277e-03 -1.095836e-02
## 106 -1.609797e-02 -1.970819e-02
## 107 -9.474540e-03 -3.614311e-03
## 108 -2.489878e-03  2.937727e-03
## 109 -1.019409e-02 -2.039103e-02
## 110 -3.932455e-03 -3.471393e-04
## 111  3.659767e-02  1.457088e-02
## 112 -1.578326e-02  2.244390e-04
## 113  1.363679e-03 -2.927348e-03
## 114  8.203946e-03  1.235671e-02
## 115 -3.320907e-03  2.951082e-05
## 116  1.043221e-04 -5.617373e-04
## 117 -3.120153e-03  5.410798e-03
## 118 -1.032363e-02  4.705361e-03
## 119 -3.411758e-03 -3.072167e-04
## 120  2.969669e-03  3.112525e-03
## 121  7.238856e-03  7.912421e-03
## 122 -6.412966e-03 -3.522318e-03
## 123  1.720992e-03  1.105828e-02
## 124 -7.105584e-03 -6.439168e-04
## 125 -2.226063e-03 -1.632325e-03
## 126 -1.149609e-03 -4.389892e-04
## 127 -1.725216e-02 -7.924685e-03
## 128 -5.031781e-03  4.668867e-03
## 129 -4.798773e-03  1.056880e-03
## 130 -3.583165e-03 -8.410492e-03
## 131 -2.666811e-02 -2.948056e-02
## 132  7.022005e-03  5.751531e-03
## 133  1.033948e-02  1.465282e-02

## Augmented Dickey-Fuller Test 
## alternative: stationary 
##  
## Type 1: no drift no trend 
##      lag    ADF p.value
## [1,]   0 -11.60    0.01
## [2,]   1  -8.53    0.01
## [3,]   2  -6.96    0.01
## [4,]   3  -6.61    0.01
## [5,]   4  -6.08    0.01
## Type 2: with drift no trend 
##      lag    ADF p.value
## [1,]   0 -11.56    0.01
## [2,]   1  -8.50    0.01
## [3,]   2  -6.93    0.01
## [4,]   3  -6.58    0.01
## [5,]   4  -6.06    0.01
## Type 3: with drift and trend 
##      lag    ADF p.value
## [1,]   0 -11.52    0.01
## [2,]   1  -8.48    0.01
## [3,]   2  -6.90    0.01
## [4,]   3  -6.56    0.01
## [5,]   4  -6.04    0.01
## ---- 
## Note: in fact, p.value = 0.01 means p.value <= 0.01
## Augmented Dickey-Fuller Test 
## alternative: stationary 
##  
## Type 1: no drift no trend 
##      lag    ADF p.value
## [1,]   0 -10.86    0.01
## [2,]   1  -7.19    0.01
## [3,]   2  -6.19    0.01
## [4,]   3  -6.18    0.01
## [5,]   4  -6.41    0.01
## Type 2: with drift no trend 
##      lag    ADF p.value
## [1,]   0 -10.82    0.01
## [2,]   1  -7.16    0.01
## [3,]   2  -6.16    0.01
## [4,]   3  -6.16    0.01
## [5,]   4  -6.38    0.01
## Type 3: with drift and trend 
##      lag    ADF p.value
## [1,]   0 -10.78    0.01
## [2,]   1  -7.13    0.01
## [3,]   2  -6.14    0.01
## [4,]   3  -6.14    0.01
## [5,]   4  -6.36    0.01
## ---- 
## Note: in fact, p.value = 0.01 means p.value <= 0.01
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression trend 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + tt + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.030697 -0.005832 -0.000346  0.005442  0.050779 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  8.148e-04  1.849e-03   0.441    0.660    
## z.lag.1     -1.051e+00  1.240e-01  -8.475 5.04e-14 ***
## tt          -8.757e-06  2.403e-05  -0.364    0.716    
## z.diff.lag   5.109e-02  8.675e-02   0.589    0.557    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01039 on 127 degrees of freedom
## Multiple R-squared:  0.4998, Adjusted R-squared:  0.488 
## F-statistic:  42.3 on 3 and 127 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -8.4751 23.9641 35.9146 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
##                tau3     phi2     phi3
## statistic -8.475097 23.96407 35.91462
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression trend 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + tt + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.034260 -0.004486 -0.000077  0.005815  0.031944 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept) -1.529e-04  1.698e-03  -0.090    0.928    
## z.lag.1     -8.835e-01  1.240e-01  -7.127 6.83e-11 ***
## tt           3.012e-06  2.207e-05   0.136    0.892    
## z.diff.lag  -7.443e-02  8.933e-02  -0.833    0.406    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.009553 on 127 degrees of freedom
## Multiple R-squared:  0.4759, Adjusted R-squared:  0.4636 
## F-statistic: 38.45 on 3 and 127 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -7.1272 16.9641 25.43 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
##                tau3    phi2     phi3
## statistic -7.127248 16.9641 25.43001
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression drift 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.030151 -0.006004 -0.000159  0.005671  0.051303 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  0.0002280  0.0009049   0.252    0.802    
## z.lag.1     -1.0494964  0.1235253  -8.496  4.3e-14 ***
## z.diff.lag   0.0506692  0.0864443   0.586    0.559    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01036 on 128 degrees of freedom
## Multiple R-squared:  0.4993, Adjusted R-squared:  0.4914 
## F-statistic: 63.81 on 2 and 128 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -8.4962 36.1244 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau2 -3.46 -2.88 -2.57
## phi1  6.52  4.63  3.81
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression drift 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.034421 -0.004389 -0.000085  0.005833  0.031778 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  4.888e-05  8.315e-04   0.059    0.953    
## z.lag.1     -8.838e-01  1.235e-01  -7.158 5.67e-11 ***
## z.diff.lag  -7.429e-02  8.898e-02  -0.835    0.405    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.009516 on 128 degrees of freedom
## Multiple R-squared:  0.4759, Adjusted R-squared:  0.4677 
## F-statistic: 58.11 on 2 and 128 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -7.1578 25.6334 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau2 -3.46 -2.88 -2.57
## phi1  6.52  4.63  3.81
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression none 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 - 1 + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.029920 -0.005774  0.000076  0.005894  0.051530 
## 
## Coefficients:
##            Estimate Std. Error t value Pr(>|t|)    
## z.lag.1    -1.04950    0.12308  -8.527 3.46e-14 ***
## z.diff.lag  0.05095    0.08612   0.592    0.555    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01032 on 129 degrees of freedom
## Multiple R-squared:  0.499,  Adjusted R-squared:  0.4913 
## F-statistic: 64.25 on 2 and 129 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -8.5272 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau1 -2.58 -1.95 -1.62
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression none 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 - 1 + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.034371 -0.004340 -0.000036  0.005881  0.031828 
## 
## Coefficients:
##            Estimate Std. Error t value Pr(>|t|)    
## z.lag.1    -0.88388    0.12297  -7.188 4.73e-11 ***
## z.diff.lag -0.07420    0.08862  -0.837    0.404    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.009479 on 129 degrees of freedom
## Multiple R-squared:  0.4759, Adjusted R-squared:  0.4678 
## F-statistic: 58.56 on 2 and 129 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -7.1877 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau1 -2.58 -1.95 -1.62
## 
## ######################################## 
## # Phillips and Ouliaris Unit Root Test # 
## ######################################## 
## 
## Test of type Pz 
## detrending of series none 
## 
## Response PCE :
## 
## Call:
## lm(formula = PCE ~ zr - 1)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.035593 -0.005006  0.000100  0.005352  0.053987 
## 
## Coefficients:
##       Estimate Std. Error t value Pr(>|t|)    
## zrPCE  0.78931    0.05893  13.394  < 2e-16 ***
## zrDPI  0.21501    0.05979   3.596 0.000454 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01117 on 133 degrees of freedom
## Multiple R-squared:      1,  Adjusted R-squared:      1 
## F-statistic: 3.18e+07 on 2 and 133 DF,  p-value: < 2.2e-16
## 
## 
## Response DPI :
## 
## Call:
## lm(formula = DPI ~ zr - 1)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.035093 -0.004833  0.000136  0.005776  0.042633 
## 
## Coefficients:
##       Estimate Std. Error t value Pr(>|t|)    
## zrPCE  0.06780    0.05341    1.27    0.206    
## zrDPI  0.93239    0.05418   17.21   <2e-16 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01012 on 133 degrees of freedom
## Multiple R-squared:      1,  Adjusted R-squared:      1 
## F-statistic: 3.761e+07 on 2 and 133 DF,  p-value: < 2.2e-16
## 
## 
## 
## Value of test-statistic is: 50.7408 
## 
## Critical values of Pz are:
##                   10pct    5pct    1pct
## critical values 33.9267 40.8217 55.1911
## 
## ######################################## 
## # Phillips and Ouliaris Unit Root Test # 
## ######################################## 
## 
## Test of type Pu 
## detrending of series none 
## 
## 
## Call:
## lm(formula = z[, 1] ~ z[, -1] - 1)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.064570 -0.006143  0.001245  0.008814  0.043063 
## 
## Coefficients:
##          Estimate Std. Error t value Pr(>|t|)    
## z[, -1] 1.0146094  0.0001865    5441   <2e-16 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01642 on 135 degrees of freedom
## Multiple R-squared:      1,  Adjusted R-squared:      1 
## F-statistic: 2.961e+07 on 1 and 135 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: 38.8218 
## 
## Critical values of Pu are:
##                   10pct    5pct    1pct
## critical values 20.3933 25.9711 38.3413
##   [1]   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18
##  [19]  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36
##  [37]  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54
##  [55]  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72
##  [73]  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90
##  [91]  91  92  93  94  95  96  97  98  99 100 101 102 103 104 105 106 107 108
## [109] 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
## [127] 127 128 129 130 131 132 133 134 135 136
##            DPI.ts        PCE.ts     tendencia
## 1   -2.510899e-02 -1.919049e-03 -8.635583e-14
## 2   -2.953340e-03  2.217372e-03 -2.170361e-14
## 3    1.784882e-02  1.129870e-02 -8.988726e-14
## 4    6.739032e-03 -7.589446e-03  1.878533e-14
## 5   -3.706020e-03 -6.416917e-03  6.538353e-16
## 6   -2.914558e-02 -6.450135e-03 -1.563895e-15
## 7   -7.404300e-03  1.257019e-02  1.072713e-14
## 8   -1.097711e-02  4.023027e-03  1.586251e-14
## 9   -8.215015e-03  6.726283e-03  2.984845e-14
## 10   5.195708e-02  1.359018e-02  6.911730e-15
## 11  -1.332322e-02 -1.719371e-03  1.641736e-14
## 12   2.395476e-03  3.269772e-02 -1.416905e-14
## 13  -1.276104e-02 -2.892714e-02  6.986769e-15
## 14   1.697488e-03  4.626656e-03  1.070690e-14
## 15  -2.862755e-03 -2.109599e-02  2.350813e-14
## 16   1.130998e-02 -2.937561e-03  3.296744e-14
## 17  -6.289420e-03  3.413502e-03 -1.169187e-14
## 18  -4.813219e-03 -7.534389e-03 -1.771087e-14
## 19   6.725819e-03  1.058646e-02  6.032383e-16
## 20   8.711987e-03 -2.494544e-03  1.155809e-15
## 21   1.516685e-02  1.880030e-02 -9.104782e-16
## 22  -5.301884e-04  3.043486e-03  1.816894e-15
## 23   6.851905e-03 -9.509333e-03 -3.815380e-15
## 24  -9.607165e-03 -1.265224e-02  1.689166e-14
## 25  -1.098136e-02 -1.474174e-02  1.024520e-14
## 26   1.510791e-03 -9.386031e-04  1.541471e-14
## 27  -6.638958e-03  7.144184e-03  7.534834e-15
## 28  -5.258384e-04  5.496147e-03  2.830119e-15
## 29   7.800106e-03  1.096245e-02  1.646498e-14
## 30   5.731200e-04  1.088338e-02  1.169841e-15
## 31   7.895301e-03  7.006991e-03  5.293849e-15
## 32   5.334324e-03  5.767996e-04  7.076760e-15
## 33   3.350332e-04  2.346975e-04  2.869805e-15
## 34  -8.241227e-04 -6.773464e-03  7.184017e-15
## 35   3.369390e-03 -5.296521e-03 -1.170313e-15
## 36  -1.849343e-03 -4.725130e-03  8.774923e-15
## 37   1.049930e-02  5.848863e-03 -7.992471e-15
## 38  -4.992293e-03 -6.429490e-04  1.900141e-14
## 39   8.221320e-05 -8.800583e-03 -1.929542e-15
## 40   4.335974e-04 -2.160625e-04 -5.028093e-17
## 41  -1.306822e-02 -6.959016e-03  2.085878e-15
## 42  -1.640072e-02 -2.219343e-02 -7.206078e-15
## 43   2.280164e-03  7.153777e-04 -4.168236e-15
## 44   9.637625e-03  1.100314e-02  1.260922e-14
## 45   1.583194e-03 -1.490533e-03  4.292467e-15
## 46  -3.100251e-03 -3.909998e-04 -6.758981e-15
## 47   6.486978e-03  4.270483e-03  1.335508e-15
## 48  -1.253617e-02 -2.129724e-03 -2.606939e-15
## 49  -5.949808e-03 -1.051996e-02 -1.208203e-14
## 50   1.107776e-03 -8.088938e-04 -1.053046e-15
## 51  -7.866667e-03  2.750010e-03  1.612908e-14
## 52  -1.406379e-02 -1.431478e-02  9.919864e-15
## 53  -1.116514e-02 -1.029384e-02 -9.541298e-15
## 54  -3.966318e-03 -7.328981e-03 -9.778574e-16
## 55   4.063324e-03  3.530922e-03  4.793565e-15
## 56  -1.013307e-03 -7.866497e-03 -1.014600e-14
## 57   9.857970e-03  1.443419e-03 -1.453510e-14
## 58  -3.448909e-03 -4.479146e-03 -1.817569e-14
## 59   5.496020e-04 -6.404235e-03 -1.165614e-14
## 60  -5.474114e-03 -6.138009e-03 -1.630511e-14
## 61  -2.756961e-03  1.379402e-05  1.670882e-14
## 62  -5.607955e-03 -4.883666e-03  2.767089e-15
## 63  -2.535010e-03 -4.304701e-03  5.574346e-15
## 64  -2.075325e-03  1.347536e-03  2.022614e-14
## 65   2.122959e-03 -4.098647e-03  1.851369e-14
## 66   8.550897e-03  4.380205e-03 -1.061233e-14
## 67   1.298568e-02  3.431958e-03 -3.583792e-16
## 68   2.772005e-03  2.273340e-04  1.122378e-14
## 69   1.204070e-04 -1.278237e-02 -5.575978e-15
## 70   5.502678e-03  6.960637e-03 -7.050823e-15
## 71  -1.534656e-03  2.718491e-03  3.882843e-16
## 72   1.809563e-02  4.285977e-03  1.426836e-14
## 73   1.121850e-02  1.585176e-02  2.484177e-15
## 74  -2.977705e-03  2.230663e-03 -6.028588e-15
## 75  -6.808790e-03 -8.836637e-03 -1.974582e-15
## 76   4.853054e-03  4.753592e-03  8.390239e-15
## 77   1.490202e-03  5.993348e-04  5.782798e-15
## 78   8.091731e-03 -2.578443e-03 -8.853107e-15
## 79   2.380293e-03  5.227412e-03 -3.954247e-15
## 80   1.555824e-03 -2.224133e-03 -1.065252e-15
## 81   2.644215e-03 -2.990263e-03  8.137091e-16
## 82   1.196199e-02  1.602203e-02 -2.101387e-14
## 83   6.656500e-03  9.011897e-03 -7.518214e-16
## 84  -5.299604e-03  7.001744e-03 -3.367784e-15
## 85  -5.562117e-03 -8.399423e-04  9.934337e-15
## 86  -6.779376e-03  6.177410e-03  4.473575e-15
## 87  -3.556430e-03  5.641977e-03  1.771264e-14
## 88   8.451690e-03  1.435329e-03  6.185291e-15
## 89  -1.490436e-03  1.454193e-03  1.495580e-14
## 90  -4.808515e-03 -1.850633e-04  1.965830e-14
## 91   8.782409e-03 -2.727145e-04 -7.320313e-15
## 92   7.506540e-03  1.558209e-03  5.385330e-15
## 93  -9.713619e-03 -1.167301e-02  1.147318e-14
## 94   1.751218e-02  1.048533e-02  4.276212e-16
## 95   6.787132e-03  4.478586e-03  1.655066e-14
## 96   8.560366e-05 -5.888060e-03 -1.764016e-14
## 97   5.607101e-03  7.564481e-03 -2.084591e-14
## 98  -1.347588e-03  6.847429e-03 -1.518753e-15
## 99   5.140640e-04  1.074448e-02  1.014278e-15
## 100  8.584682e-03  1.035780e-02 -8.896862e-15
## 101  2.890220e-02  1.517240e-02  1.814321e-14
## 102  2.667936e-03  7.147472e-03 -1.430597e-14
## 103  1.053923e-03 -1.147848e-02 -3.574194e-15
## 104  4.503151e-03 -3.333071e-03 -1.042140e-14
## 105  9.259451e-03 -5.384872e-03  1.215699e-15
## 106 -1.338467e-02 -1.489849e-02 -7.626269e-15
## 107 -7.451602e-03 -2.837360e-05 -4.667533e-15
## 108 -7.453413e-04  6.030161e-03 -1.883397e-14
## 109 -9.477315e-03 -1.912045e-02 -2.078141e-14
## 110 -4.285748e-03 -9.734010e-04  1.428721e-14
## 111  3.605626e-02  1.361116e-02 -1.708047e-14
## 112 -1.676034e-02 -1.507568e-03 -2.087086e-14
## 113 -1.127673e-04 -5.544554e-03 -3.996490e-14
## 114  7.702899e-03  1.146853e-02  1.315687e-14
## 115 -4.032877e-03 -1.232555e-03 -3.125034e-15
## 116 -6.937422e-04 -1.976417e-03 -9.178139e-15
## 117 -3.590305e-03  4.577387e-03  9.212465e-15
## 118 -1.080764e-02  3.847397e-03  1.682920e-14
## 119 -3.923225e-03 -1.213863e-03  5.574775e-15
## 120  2.388496e-03  2.082315e-03  1.050187e-14
## 121  6.568518e-03  6.724155e-03 -1.286042e-14
## 122 -6.995955e-03 -4.555748e-03  4.274434e-15
## 123  1.086457e-03  9.933475e-03  2.520453e-15
## 124 -7.130079e-03 -6.873386e-04 -1.627598e-15
## 125 -2.616445e-03 -2.324330e-03  6.583684e-15
## 126 -1.275868e-03 -6.628007e-04  9.582457e-15
## 127 -1.759389e-02 -8.530458e-03  1.569377e-15
## 128 -5.734114e-03  3.423885e-03  3.689129e-14
## 129 -5.484564e-03 -1.587806e-04  5.962706e-15
## 130 -4.997332e-03 -1.091730e-02 -3.318309e-15
## 131 -2.838075e-02 -3.251645e-02 -1.827679e-14
## 132  4.382402e-03  1.072469e-03 -1.052489e-14
## 133  7.681441e-03  9.941066e-03 -2.057109e-15

## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression trend 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + tt + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.029661 -0.005469 -0.000092  0.005705  0.050719 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  8.889e-04  1.837e-03   0.484    0.629    
## z.lag.1     -1.039e+00  1.236e-01  -8.403 7.49e-14 ***
## tt          -1.014e-05  2.388e-05  -0.425    0.672    
## z.diff.lag   4.455e-02  8.681e-02   0.513    0.609    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.01033 on 127 degrees of freedom
## Multiple R-squared:  0.4973, Adjusted R-squared:  0.4854 
## F-statistic: 41.88 on 3 and 127 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -8.403 23.5528 35.3081 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression trend 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + tt + z.diff.lag)
## 
## Residuals:
##       Min        1Q    Median        3Q       Max 
## -0.032212 -0.004751  0.000097  0.005425  0.031915 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept) -2.652e-05  1.638e-03  -0.016    0.987    
## z.lag.1     -9.069e-01  1.239e-01  -7.321 2.49e-11 ***
## tt           4.684e-07  2.129e-05   0.022    0.982    
## z.diff.lag  -6.301e-02  8.895e-02  -0.708    0.480    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.009212 on 127 degrees of freedom
## Multiple R-squared:  0.4839, Adjusted R-squared:  0.4717 
## F-statistic: 39.69 on 3 and 127 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -7.3208 17.8798 26.8158 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
## 
## ############################################### 
## # Augmented Dickey-Fuller Test Unit Root Test # 
## ############################################### 
## 
## Test regression trend 
## 
## 
## Call:
## lm(formula = z.diff ~ z.lag.1 + 1 + tt + z.diff.lag)
## 
## Residuals:
##        Min         1Q     Median         3Q        Max 
## -7.010e-14 -7.833e-15  8.750e-16  7.614e-15  3.590e-14 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  3.200e-15  2.494e-15   1.283  0.20169    
## z.lag.1     -6.630e-01  1.019e-01  -6.509 1.59e-09 ***
## tt          -3.677e-17  3.238e-17  -1.135  0.25834    
## z.diff.lag  -2.414e-01  7.561e-02  -3.192  0.00178 ** 
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 1.397e-14 on 127 degrees of freedom
## Multiple R-squared:  0.4727, Adjusted R-squared:  0.4603 
## F-statistic: 37.96 on 3 and 127 DF,  p-value: < 2.2e-16
## 
## 
## Value of test-statistic is: -6.5087 14.3936 21.5222 
## 
## Critical values for test statistics: 
##       1pct  5pct 10pct
## tau3 -3.99 -3.43 -3.13
## phi2  6.22  4.75  4.07
## phi3  8.43  6.49  5.47
##            dlnPCE        dlnDPI
## 1   -8.166007e-03  5.186159e-03
## 2    8.858848e-03  2.675018e-02
## 3   -1.394811e-02  1.119258e-02
## 4   -4.908224e-03  1.043509e-03
## 5   -2.459059e-03 -2.622343e-02
## 6    1.229856e-02 -4.787232e-03
## 7   -1.374145e-03 -1.078473e-02
## 8   -1.097248e-03 -5.374421e-03
## 9    9.486912e-03  5.875504e-02
## 10  -2.013505e-03 -1.339273e-02
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## 130 -3.086257e-02 -2.486773e-02
## 131  6.412096e-03  9.640714e-03
## 132  1.425617e-02  1.051089e-02

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.