fitness.landscape : case.boot.fit.land: no visible global function
  definition for ‘as.formula’
fitness.landscape : para.boot.fit.land : simulate.gam.gsg: no visible
  global function definition for ‘predict’
fitness.landscape : para.boot.fit.land : simulate.gam.gsg: no visible
  global function definition for ‘rpois’
fitness.landscape : para.boot.fit.land : simulate.gam.gsg: no visible
  global function definition for ‘rbinom’
fitness.landscape : para.boot.fit.land: no visible global function
  definition for ‘as.formula’
fitness.landscape: no visible global function definition for ‘terms’
fitness.landscape : pts: no visible global function definition for ‘sd’
fitness.landscape: no visible global function definition for
  ‘flush.console’
fitness.landscape: no visible binding for global variable ‘quantile’
gam.gradients : gradients: no visible binding for global variable ‘sd’
gam.gradients : boot.gradients: no visible global function definition
  for ‘as.formula’
gam.gradients : simulate.gam.gsg: no visible global function definition
  for ‘predict’
gam.gradients : simulate.gam.gsg: no visible global function definition
  for ‘rpois’
gam.gradients : simulate.gam.gsg: no visible global function definition
  for ‘rbinom’
gam.gradients : simulate.gam.gsg: no visible global function definition
  for ‘rnbinom’
gam.gradients : simulate.gam.gsg: no visible global function definition
  for ‘rnorm’
gam.gradients : boot.gradients.para: no visible global function
  definition for ‘as.formula’
gam.gradients : permute.W.refit: no visible global function definition
  for ‘as.formula’
gam.gradients : permute.W.refit: no visible global function definition
  for ‘predict’
gam.gradients : permute.W.refit: no visible global function definition
  for ‘var’
gam.gradients: no visible global function definition for ‘terms’
gam.gradients: no visible global function definition for
  ‘flush.console’
gam.gradients: no visible binding for global variable ‘sd’
gppr: no visible global function definition for ‘ppr’
gppr: no visible global function definition for ‘as.formula’
gppr: no visible global function definition for ‘predict’
gppr.gradients : Wbar: no visible global function definition for
  ‘predict’
gppr.gradients : gradients: no visible binding for global variable ‘sd’
gppr.gradients : simulate.gppr.gsg: no visible global function
  definition for ‘predict’
gppr.gradients : simulate.gppr.gsg: no visible global function
  definition for ‘rpois’
gppr.gradients : simulate.gppr.gsg: no visible global function
  definition for ‘rbinom’
gppr.gradients : boot.gradients.para: no visible global function
  definition for ‘plot’
gppr.gradients : permute.W.refit: no visible global function definition
  for ‘predict’
gppr.gradients : permute.W.refit: no visible global function definition
  for ‘var’
gppr.gradients: no visible global function definition for ‘terms’
gppr.gradients: no visible global function definition for
  ‘flush.console’
gppr.gradients: no visible binding for global variable ‘sd’
moments.differentials : Pmatrix: no visible global function definition
  for ‘var’
moments.differentials : Pmatrix: no visible global function definition
  for ‘cov’
moments.differentials : weighted.covar: no visible global function
  definition for ‘weighted.mean’
moments.differentials : coef.moments : <anonymous>: no visible global
  function definition for ‘sd’
moments.differentials : coef.moments: no visible global function
  definition for ‘weighted.mean’
moments.differentials : coef.moments: no visible global function
  definition for ‘var’
moments.differentials : coef.moments: no visible global function
  definition for ‘cov’
moments.differentials : <anonymous>: no visible global function
  definition for ‘sd’
predict.gppr: no visible global function definition for ‘predict’
Undefined global functions or variables:
  as.formula cov flush.console plot ppr predict quantile rbinom rnbinom
  rnorm rpois sd terms var weighted.mean
Consider adding
  importFrom("graphics", "plot")
  importFrom("stats", "as.formula", "cov", "ppr", "predict", "quantile",
             "rbinom", "rnbinom", "rnorm", "rpois", "sd", "terms", "var",
             "weighted.mean")
  importFrom("utils", "flush.console")
to your NAMESPACE file.