Error(s) in re-building vignettes:
  ...
--- re-building ‘ceteris_paribus.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Loading required package: ggplot2

Attaching package: 'ggplot2'

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

    margin

Loading required package: gower
Quitting from lines 40-45 (ceteris_paribus.Rmd) 
Error: processing vignette 'ceteris_paribus.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘ceteris_paribus.Rmd’

--- re-building ‘ceteris_paribus_HR.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Loading required package: ggplot2

Attaching package: 'ggplot2'

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

    margin

Loading required package: gower
Quitting from lines 55-61 (ceteris_paribus_HR.Rmd) 
Error: processing vignette 'ceteris_paribus_HR.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘ceteris_paribus_HR.Rmd’

--- re-building ‘coral.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Loading required package: ggplot2

Attaching package: 'ggplot2'

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

    margin

Loading required package: gower
Quitting from lines 53-57 (coral.Rmd) 
Error: processing vignette 'coral.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘coral.Rmd’

--- re-building ‘whatIf1d.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Loading required package: ggplot2

Attaching package: 'ggplot2'

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

    margin

Loading required package: gower
Quitting from lines 46-61 (whatIf1d.Rmd) 
Error: processing vignette 'whatIf1d.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘whatIf1d.Rmd’

--- re-building ‘whatIf2d.Rmd’ using knitr
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
Loading required package: ggplot2
Loading required package: gower
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'randomForest'

The following object is masked from 'package:ggplot2':

    margin

Quitting from lines 19-39 (whatIf2d.Rmd) 
Error: processing vignette 'whatIf2d.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘whatIf2d.Rmd’

SUMMARY: processing the following files failed:
  ‘ceteris_paribus.Rmd’ ‘ceteris_paribus_HR.Rmd’ ‘coral.Rmd’
  ‘whatIf1d.Rmd’ ‘whatIf2d.Rmd’

Error: Vignette re-building failed.
Execution halted