Error(s) in re-building vignettes:
  ...
--- re-building ‘Using-Plot2WayANOVA.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
Warning: Unknown or uninitialised column: `r.squared`.
Warning: Unknown or uninitialised column: `r.squared`.
Warning: Unknown or uninitialised column: `r.squared`.
Warning: Unknown or uninitialised column: `r.squared`.
Warning in max(limit1, limit2) :
  no non-missing arguments to max; returning -Inf
Warning in min(limit1, limit2) :
  no non-missing arguments to min; returning Inf
Warning: Unknown or uninitialised column: `r.squared`.
Quitting from lines 145-146 (Using-Plot2WayANOVA.Rmd) 
Error: processing vignette 'Using-Plot2WayANOVA.Rmd' failed with diagnostics:
non-numeric argument to mathematical function
--- failed re-building ‘Using-Plot2WayANOVA.Rmd’

--- re-building ‘Using-PlotXTabs.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘Using-PlotXTabs.Rmd’

--- re-building ‘Using-PlotXTabs2.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘Using-PlotXTabs2.Rmd’

--- re-building ‘Using-chaid_table.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.

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

--- finished re-building ‘Using-chaid_table.Rmd’

--- re-building ‘Using-newggslopegraph.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
--- finished re-building ‘Using-newggslopegraph.Rmd’

SUMMARY: processing the following file failed:
  ‘Using-Plot2WayANOVA.Rmd’

Error: Vignette re-building failed.
Execution halted