add_slides_from_plot_list: no visible global function definition for
  'ph_with_text'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_gg_at'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_table_at'
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
Packages required but not available: 'plotly', 'devtools'

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Namespaces in Imports field not imported from:
  ‘DT’ ‘rmarkdown’
  All declared Imports should be used.
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_text’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_gg_at’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_table_at’
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
Namespaces in Imports field not imported from:
  ‘DT’ ‘rmarkdown’
  All declared Imports should be used.
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_text’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_gg_at’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_table_at’
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
add_slides_from_plot_list: no visible global function definition for
  'ph_with_text'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_gg_at'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_table_at'
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_text’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_gg_at’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_table_at’
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_text’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_gg_at’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_table_at’
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
Namespaces in Imports field not imported from:
  ‘DT’ ‘rmarkdown’
  All declared Imports should be used.
'LazyData' is specified without a 'data' directory
Namespaces in Imports field not imported from:
  ‘DT’ ‘rmarkdown’
  All declared Imports should be used.
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_text’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_gg_at’
add_slides_from_plot_list: no visible global function definition for
  ‘ph_with_table_at’
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
add_slides_from_plot_list: no visible global function definition for
  'ph_with_text'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_gg_at'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_table_at'
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory
Namespaces in Imports field not imported from:
  ‘DT’ ‘rmarkdown’
  All declared Imports should be used.
'LazyData' is specified without a 'data' directory
Namespaces in Imports field not imported from:
  ‘DT’ ‘rmarkdown’
  All declared Imports should be used.
'LazyData' is specified without a 'data' directory
add_slides_from_plot_list: no visible global function definition for
  'ph_with_text'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_gg_at'
add_slides_from_plot_list: no visible global function definition for
  'ph_with_table_at'
Undefined global functions or variables:
  ph_with_gg_at ph_with_table_at ph_with_text
'LazyData' is specified without a 'data' directory