Error(s) in re-building vignettes:
  ...
--- re-building ‘Biplots_in_1D.Rmd’ using rmarkdown
--- finished re-building ‘Biplots_in_1D.Rmd’

--- re-building ‘Biplots_in_3D.Rmd’ using rmarkdown
--- finished re-building ‘Biplots_in_3D.Rmd’

--- re-building ‘CA_in_biplotEZ.Rmd’ using rmarkdown
--- finished re-building ‘CA_in_biplotEZ.Rmd’

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

Quitting from Class_separation.Rmd:173-177 [unnamed-chunk-3]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `loadNamespace()`:
! there is no package called 'geometry'
---
Backtrace:
    ▆
 1. ├─base::plot(...)
 2. ├─biplotEZ::legend.type(...)
 3. ├─biplotEZ::alpha.bags(CVA(biplot(state.x77), classes = state.region))
 4. └─base::loadNamespace(x)
 5.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
 6.     └─base (local) withOneRestart(expr, restarts[[1L]])
 7.       └─base (local) doWithOneRestart(return(expr), restart)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Class_separation.Rmd' failed with diagnostics:
there is no package called 'geometry'
--- failed re-building ‘Class_separation.Rmd’

--- re-building ‘MDS.Rmd’ using rmarkdown
--- finished re-building ‘MDS.Rmd’

--- re-building ‘biplotEZ.Rmd’ using rmarkdown
--- finished re-building ‘biplotEZ.Rmd’

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

Quitting from biplotEZ_enhancements.Rmd:37-48 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `loadNamespace()`:
! there is no package called 'geometry'
---
Backtrace:
    ▆
 1. ├─base::plot(...)
 2. ├─biplotEZ::legend.type(...)
 3. ├─biplotEZ::alpha.bags(...)
 4. └─base::loadNamespace(x)
 5.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
 6.     └─base (local) withOneRestart(expr, restarts[[1L]])
 7.       └─base (local) doWithOneRestart(return(expr), restart)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'biplotEZ_enhancements.Rmd' failed with diagnostics:
there is no package called 'geometry'
--- failed re-building ‘biplotEZ_enhancements.Rmd’

SUMMARY: processing the following files failed:
  ‘Class_separation.Rmd’ ‘biplotEZ_enhancements.Rmd’

Error: Vignette re-building failed.
Execution halted