Error(s) in re-building vignettes:
  ...
--- re-building ‘heteroskedasticity.Rmd’ using rmarkdown

Attaching package: 'olsrr'

The following object is masked from 'package:datasets':

    rivers


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine


Attaching package: 'goftest'

The following objects are masked from 'package:nortest':

    ad.test, cvm.test

--- finished re-building ‘heteroskedasticity.Rmd’

--- re-building ‘influence_measures.Rmd’ using rmarkdown

Attaching package: 'olsrr'

The following object is masked from 'package:datasets':

    rivers


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine


Attaching package: 'goftest'

The following objects are masked from 'package:nortest':

    ad.test, cvm.test

Quitting from lines 51-53 (influence_measures.Rmd) 
Error: processing vignette 'influence_measures.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘influence_measures.Rmd’

--- re-building ‘intro.Rmd’ using rmarkdown

Attaching package: 'olsrr'

The following object is masked from 'package:datasets':

    rivers


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine


Attaching package: 'goftest'

The following objects are masked from 'package:nortest':

    ad.test, cvm.test

Quitting from lines 62-64 (intro.Rmd) 
Error: processing vignette 'intro.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘intro.Rmd’

--- re-building ‘regression_diagnostics.Rmd’ using rmarkdown

Attaching package: 'olsrr'

The following object is masked from 'package:datasets':

    rivers


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine


Attaching package: 'goftest'

The following objects are masked from 'package:nortest':

    ad.test, cvm.test

Quitting from lines 88-90 (regression_diagnostics.Rmd) 
Error: processing vignette 'regression_diagnostics.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘regression_diagnostics.Rmd’

--- re-building ‘residual_diagnostics.Rmd’ using rmarkdown

Attaching package: 'olsrr'

The following object is masked from 'package:datasets':

    rivers


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine


Attaching package: 'goftest'

The following objects are masked from 'package:nortest':

    ad.test, cvm.test

Quitting from lines 36-38 (residual_diagnostics.Rmd) 
Error: processing vignette 'residual_diagnostics.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘residual_diagnostics.Rmd’

--- re-building ‘variable_selection.Rmd’ using rmarkdown

Attaching package: 'olsrr'

The following object is masked from 'package:datasets':

    rivers


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union


Attaching package: 'gridExtra'

The following object is masked from 'package:dplyr':

    combine


Attaching package: 'goftest'

The following objects are masked from 'package:nortest':

    ad.test, cvm.test

Quitting from lines 41-44 (variable_selection.Rmd) 
Error: processing vignette 'variable_selection.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘variable_selection.Rmd’

SUMMARY: processing the following files failed:
  ‘influence_measures.Rmd’ ‘intro.Rmd’ ‘regression_diagnostics.Rmd’
  ‘residual_diagnostics.Rmd’ ‘variable_selection.Rmd’

Error: Vignette re-building failed.
Execution halted