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

Attaching package: 'xspliner'

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

    xspline

randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
--- finished re-building ‘automation.Rmd’

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

Attaching package: 'xspliner'

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

    xspline

Welcome to DALEX (version: 0.3.0).
This is a plain DALEX. Use 'install_dependencies()' to get all required packages.

Attaching package: 'DALEX'

The following object is masked _by_ '.GlobalEnv':

    HR

Loading required package: lattice
Loading required package: ggplot2
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Quitting from lines 37-48 (cases.Rmd) 
Error: processing vignette 'cases.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘cases.Rmd’

--- re-building ‘discrete.Rmd’ using rmarkdown
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'xspliner'

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

    xspline

Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Warning: Column `orig` joining factors with different levels, coercing to character vector
Quitting from lines 106-107 (discrete.Rmd) 
Error: processing vignette 'discrete.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘discrete.Rmd’

--- re-building ‘extras.Rmd’ using rmarkdown
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'xspliner'

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

    xspline

Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Warning in mgcv::pcls(G) :
  initial point very close to some inequality constraints
Warning in mgcv::pcls(G) :
  initial parameters very close to inequality constraints
Quitting from lines 28-45 (extras.Rmd) 
Error: processing vignette 'extras.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘extras.Rmd’

--- re-building ‘graphics.Rmd’ using rmarkdown
randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.

Attaching package: 'xspliner'

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

    xspline

Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Quitting from lines 41-42 (graphics.Rmd) 
Error: processing vignette 'graphics.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘graphics.Rmd’

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

Attaching package: 'xspliner'

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

    xspline

randomForest 4.6-14
Type rfNews() to see new features/changes/bug fixes.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
--- finished re-building ‘methods.Rmd’

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

Attaching package: 'ggplot2'

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

    margin

Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Cannot extract model family. Use gaussian.
Cannot extract model link. Use identity.
Quitting from lines 73-75 (xspliner.Rmd) 
Error: processing vignette 'xspliner.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘xspliner.Rmd’

SUMMARY: processing the following files failed:
  ‘cases.Rmd’ ‘discrete.Rmd’ ‘extras.Rmd’ ‘graphics.Rmd’ ‘xspliner.Rmd’

Error: Vignette re-building failed.
Execution halted