.F.between.nptest: no visible binding for global variable ‘tail’
.NA.dependence.nptest: no visible binding for global variable ‘var’
.NA.dependence.nptest: no visible binding for global variable ‘tail’
.chisq.dependence.nptest: no visible binding for global variable ‘tail’
.custom.nptest : test: no visible global function definition for
  ‘flush.console’
.fillX : <anonymous>: no visible global function definition for ‘lm’
.fillX : <anonymous>: no visible global function definition for ‘coef’
.fixDataREff: no visible global function definition for ‘model.frame’
.getLinCombAndWeights: no visible global function definition for
  ‘prcomp’
.getNull: no visible global function definition for ‘terms’
.getNull: no visible global function definition for ‘model.offset’
.getNull: no visible global function definition for ‘model.frame’
.getStrata: no visible global function definition for ‘terms’
.getStrata: no visible global function definition for ‘model.frame’
.getSubsetWeights : <anonymous>: no visible binding for global variable
  ‘tail’
.getXY: no visible global function definition for ‘terms’
.getXY: no visible global function definition for ‘formula’
.getXY: no visible global function definition for ‘model.frame’
.getXY: no visible binding for global variable ‘na.pass’
.make.PermSpace : <anonymous>: no visible binding for global variable
  ‘data’
.make.RotSpace : <anonymous>: no visible binding for global variable
  ‘data’
.make.SimSpace : <anonymous>: no visible global function definition for
  ‘rnorm’
.makeContrasts: no visible global function definition for ‘model.frame’
.makeContrasts: no visible binding for global variable ‘na.pass’
.makeContrasts: no visible global function definition for ‘terms’
.mcnemar.symmetry.nptest: no visible binding for global variable ‘tail’
.obs2coeffWithin.glm: no visible global function definition for
  ‘update’
.obs2coeffWithin.lm: no visible global function definition for ‘vcov’
.obs2coeffWithin.lm: no visible global function definition for ‘update’
.obs2coeffWithin.lm: no visible binding for global variable ‘na.omit’
.obs2coeffWithin.lm: no visible global function definition for ‘coef’
.prod.perms: no visible global function definition for ‘flush.console’
.prod.perms.P: no visible global function definition for
  ‘flush.console’
.rank.dependence.nptest: no visible binding for global variable ‘tail’
.rank.symmetry.nptest: no visible binding for global variable ‘tail’
.t.between.nptest: no visible binding for global variable ‘tail’
.t.rotation.nptest.1sample: no visible global function definition for
  ‘flush.console’
.t.rotation.nptest.1sample: no visible binding for global variable
  ‘tail’
.t.symmetry.nptest: no visible binding for global variable ‘tail’
.t2stdt: no visible binding for global variable ‘sd’
.trace.between.nptest: no visible binding for global variable ‘data’
flip.adjust : <anonymous>: no visible global function definition for
  ‘adjusted’
make.signSpace : <anonymous>: no visible binding for global variable
  ‘data’
make.signSpace: no visible global function definition for ‘rbinom’
npc: no visible binding for global variable ‘tail’
npc: no visible global function definition for ‘qnorm’
npc : test: no visible global function definition for ‘qnorm’
npc : <anonymous>: no visible global function definition for
  ‘flush.console’
obs2coeffWithin: no visible global function definition for ‘lm’
obs2coeffWithin: no visible global function definition for
  ‘model.frame’
hist,flip.object : flip.hist: no visible global function definition for
  ‘arrows’
hist,flip.object : flip.hist: no visible global function definition for
  ‘text’
plot,flip.object : plot.flip: no visible global function definition for
  ‘points’
plot,flip.object : plot.flip: no visible global function definition for
  ‘text’
plot,flip.object : plot.flip: no visible global function definition for
  ‘prcomp’
plot,flip.object : plot.flip: no visible global function definition for
  ‘arrows’
Undefined global functions or variables:
  adjusted arrows coef data flush.console formula lm model.frame
  model.offset na.omit na.pass points prcomp qnorm rbinom rnorm sd tail
  terms text update var vcov
Consider adding
  importFrom("graphics", "arrows", "points", "text")
  importFrom("stats", "coef", "formula", "lm", "model.frame",
             "model.offset", "na.omit", "na.pass", "prcomp", "qnorm",
             "rbinom", "rnorm", "sd", "terms", "update", "var", "vcov")
  importFrom("utils", "data", "flush.console", "tail")
to your NAMESPACE file.