Error(s) in re-building vignettes:
  ...
--- re-building ‘Ann10.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Ann10.Rmd’

--- re-building ‘Beggs-Brill.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Beggs-Brill.Rmd’

--- re-building ‘Dranchuk-AbouKassem.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Dranchuk-AbouKassem.Rmd’

--- re-building ‘Dranchuk-Purvis-Robinson.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Dranchuk-Purvis-Robinson.Rmd’

--- re-building ‘Hall-Yarborough.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Hall-Yarborough.Rmd’

--- re-building ‘Papp.Rmd’ using rmarkdown
No results.
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Papp.Rmd’

--- re-building ‘Plot_StandingKatz_lp.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.
--- finished re-building ‘Plot_StandingKatz_lp.Rmd’

--- re-building ‘Shell.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.

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 ‘Shell.Rmd’

--- re-building ‘StandingKatz_chart.Rmd’ using rmarkdown
Warning: `as.tibble()` is deprecated, use `as_tibble()` (but mind the new semantics).
This warning is displayed once per session.
--- finished re-building ‘StandingKatz_chart.Rmd’

--- re-building ‘correlation_selection.Rmd’ using rmarkdown
Quitting from lines 17-21 (correlation_selection.Rmd) 
Error: processing vignette 'correlation_selection.Rmd' failed with diagnostics:
could not find function "n"
--- failed re-building ‘correlation_selection.Rmd’

--- re-building ‘statistics.Rmd’ using rmarkdown
Quitting from lines 15-20 (statistics.Rmd) 
Error: processing vignette 'statistics.Rmd' failed with diagnostics:
could not find function "n"
--- failed re-building ‘statistics.Rmd’

SUMMARY: processing the following files failed:
  ‘correlation_selection.Rmd’ ‘statistics.Rmd’

Error: Vignette re-building failed.
Execution halted