VaR: no visible global function definition for ‘quantile’
add_dens_polygon: no visible global function definition for ‘na.omit’
add_dens_polygon: no visible global function definition for ‘polygon’
add_dens_polygon: no visible global function definition for ‘points’
annotate: no visible global function definition for ‘par’
annotate: no visible global function definition for ‘text’
create_asset_weights: no visible global function definition for ‘runif’
custom_bw: no visible global function definition for ‘quantile’
custom_bw: no visible global function definition for ‘var’
get_conserv_plans_mv: no visible binding for global variable ‘var’
get_efficient_frontier: no visible global function definition for
  ‘chull’
get_port_vals: no visible binding for global variable ‘var’
get_quantile_contour: no visible global function definition for
  ‘contourLines’
gg_color_hue: no visible global function definition for ‘hcl’
meta_sim: no visible global function definition for ‘runif’
meta_sim: no visible global function definition for ‘rnorm’
monte_carlo_portfolios: no visible global function definition for ‘var’
my.axis: no visible global function definition for ‘rect’
my.axis: no visible global function definition for ‘axis’
my.axis: no visible global function definition for ‘axTicks’
my.axis: no visible global function definition for ‘par’
my.axis: no visible global function definition for ‘mtext’
optim_thermal: no visible global function definition for ‘optimize’
plot_cons_plans : <anonymous>: no visible global function definition
  for ‘na.omit’
plot_cons_plans: no visible global function definition for
  ‘plot.default’
plot_cons_plans: no visible global function definition for ‘box’
plot_cons_plans: no visible global function definition for ‘axis’
plot_cons_plans: no visible global function definition for ‘axTicks’
plot_cons_plans: no visible global function definition for ‘legend’
plot_correlation_between_returns: no visible global function definition
  for ‘par’
plot_correlation_between_returns: no visible global function definition
  for ‘box’
plot_correlation_between_returns: no visible global function definition
  for ‘mtext’
plot_efficient_portfolios: no visible global function definition for
  ‘par’
plot_efficient_portfolios: no visible global function definition for
  ‘barplot’
plot_panel_lines: no visible global function definition for ‘matplot’
plot_panel_lines: no visible global function definition for ‘box’
plot_rickers: no visible global function definition for ‘par’
plot_rickers: no visible global function definition for ‘box’
plot_rickers: no visible global function definition for ‘axis’
plot_rickers: no visible global function definition for ‘lines’
plot_rickers: no visible global function definition for ‘rect’
plot_rickers: no visible global function definition for ‘mtext’
plot_sim_ts: no visible global function definition for ‘par’
plot_sim_ts: no visible global function definition for ‘box’
plot_sim_ts: no visible global function definition for ‘abline’
plot_sim_ts: no visible global function definition for ‘axis’
plot_sim_ts: no visible global function definition for ‘mtext’
plot_sp_A_ts: no visible global function definition for ‘par’
plot_sp_A_ts: no visible global function definition for ‘text’
plot_sp_A_ts: no visible global function definition for ‘axis’
plot_sp_A_ts: no visible global function definition for ‘axTicks’
plot_sp_A_ts: no visible global function definition for ‘lines’
plot_sp_A_ts: no visible global function definition for ‘lm’
plot_sp_A_ts: no visible global function definition for ‘abline’
plot_sp_A_ts: no visible global function definition for ‘box’
run_cons_plans: no visible binding for global variable ‘var’
thermal_area: no visible global function definition for ‘uniroot’
thermal_area: no visible global function definition for ‘integrate’
Undefined global functions or variables:
  abline axTicks axis barplot box chull contourLines hcl integrate
  legend lines lm matplot mtext na.omit optimize par plot.default
  points polygon quantile rect rnorm runif text uniroot var
Consider adding
  importFrom("grDevices", "chull", "contourLines", "hcl")
  importFrom("graphics", "abline", "axTicks", "axis", "barplot", "box",
             "legend", "lines", "matplot", "mtext", "par",
             "plot.default", "points", "polygon", "rect", "text")
  importFrom("stats", "integrate", "lm", "na.omit", "optimize",
             "quantile", "rnorm", "runif", "uniroot", "var")
to your NAMESPACE file.