Error(s) in re-building vignettes:
  ...
--- re-building ‘additional_parameters.Rmd’ using rmarkdown
Loading required package: sicegar
Loading required package: dplyr

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

Loading required package: ggplot2
--- finished re-building ‘additional_parameters.Rmd’

--- re-building ‘categorizing_fits.Rmd’ using rmarkdown
Loading required package: sicegar
Loading required package: dplyr

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

Loading required package: cowplot
Loading required package: ggplot2

Attaching package: 'cowplot'

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

    ggsave

Quitting from lines 85-94 (categorizing_fits.Rmd) 
Error: processing vignette 'categorizing_fits.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘categorizing_fits.Rmd’

--- re-building ‘fitting_individual_models.Rmd’ using rmarkdown
Loading required package: sicegar
Loading required package: dplyr

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

Loading required package: ggplot2
--- finished re-building ‘fitting_individual_models.Rmd’

--- re-building ‘introduction.Rmd’ using rmarkdown
Loading required package: sicegar
Loading required package: dplyr

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

Loading required package: cowplot
Loading required package: ggplot2

Attaching package: 'cowplot'

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

    ggsave

Quitting from lines 56-70 (introduction.Rmd) 
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘introduction.Rmd’

--- re-building ‘plotting_fitted_models.Rmd’ using rmarkdown
Loading required package: sicegar
Loading required package: dplyr

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

Loading required package: ggplot2
Loading required package: cowplot

Attaching package: 'cowplot'

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

    ggsave

Quitting from lines 68-73 (plotting_fitted_models.Rmd) 
Error: processing vignette 'plotting_fitted_models.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘plotting_fitted_models.Rmd’

SUMMARY: processing the following files failed:
  ‘categorizing_fits.Rmd’ ‘introduction.Rmd’
  ‘plotting_fitted_models.Rmd’

Error: Vignette re-building failed.
Execution halted