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

Quitting from lines 126-127 [lalonde-boxplot] (MatchingOrder.Rmd)
Error: processing vignette 'MatchingOrder.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘MatchingOrder.Rmd’

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

Quitting from lines 141-142 [lalondeSummary] (PSAboot.Rmd)
Error: processing vignette 'PSAboot.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘PSAboot.Rmd’

SUMMARY: processing the following files failed:
  ‘MatchingOrder.Rmd’ ‘PSAboot.Rmd’

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
  ...
--- re-building ‘MatchingOrder.Rmd’ using rmarkdown

Quitting from lines 126-127 [lalonde-boxplot] (MatchingOrder.Rmd)
Error: processing vignette 'MatchingOrder.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘MatchingOrder.Rmd’

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

Quitting from lines 141-142 [lalondeSummary] (PSAboot.Rmd)
Error: processing vignette 'PSAboot.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘PSAboot.Rmd’

SUMMARY: processing the following files failed:
  ‘MatchingOrder.Rmd’ ‘PSAboot.Rmd’

Error: Vignette re-building failed.
Execution halted
Note: found 4 marked UTF-8 strings
Error(s) in re-building vignettes:
--- re-building ‘MatchingOrder.Rmd’ using rmarkdown

Quitting from lines 126-127 [lalonde-boxplot] (MatchingOrder.Rmd)
Error: processing vignette 'MatchingOrder.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘MatchingOrder.Rmd’

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

Quitting from lines 141-142 [lalondeSummary] (PSAboot.Rmd)
Error: processing vignette 'PSAboot.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘PSAboot.Rmd’

SUMMARY: processing the following files failed:
  ‘MatchingOrder.Rmd’ ‘PSAboot.Rmd’

Error: Vignette re-building failed.
Execution halted
Note: found 4 marked UTF-8 strings
Error(s) in re-building vignettes:
--- re-building ‘MatchingOrder.Rmd’ using rmarkdown

Quitting from lines 126-127 [lalonde-boxplot] (MatchingOrder.Rmd)
Error: processing vignette 'MatchingOrder.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘MatchingOrder.Rmd’

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

Quitting from lines 141-142 [lalondeSummary] (PSAboot.Rmd)
Error: processing vignette 'PSAboot.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building ‘PSAboot.Rmd’

SUMMARY: processing the following files failed:
  ‘MatchingOrder.Rmd’ ‘PSAboot.Rmd’

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
--- re-building 'MatchingOrder.Rmd' using rmarkdown

Quitting from lines 126-127 [lalonde-boxplot] (MatchingOrder.Rmd)
Error: processing vignette 'MatchingOrder.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building 'MatchingOrder.Rmd'

--- re-building 'PSAboot.Rmd' using rmarkdown

Quitting from lines 141-142 [lalondeSummary] (PSAboot.Rmd)
Error: processing vignette 'PSAboot.Rmd' failed with diagnostics:
cannot use 'paired' in formula method
--- failed re-building 'PSAboot.Rmd'

SUMMARY: processing the following files failed:
  'MatchingOrder.Rmd' 'PSAboot.Rmd'

Error: Vignette re-building failed.
Execution halted