kma : best_warping: no visible global function definition for ‘approx’
kma : best_warping_only.dilation: no visible global function definition
  for ‘approx’
kma : best_warping_only.shift: no visible global function definition
  for ‘approx’
kma: no visible global function definition for ‘is’
kma: no visible global function definition for ‘approx’
kma: no visible global function definition for ‘loess’
kma: no visible global function definition for ‘predict’
kma: no visible global function definition for ‘optim’
kma : f.sann: no visible global function definition for ‘runif’
kma.compare: no visible global function definition for ‘dev.new’
kma.compare: no visible global function definition for ‘plot’
kma.compare: no visible global function definition for ‘points’
kma.compare: no visible global function definition for ‘box’
kma.compare: no visible global function definition for ‘axis’
kma.compare: no visible global function definition for ‘title’
kma.compare: no visible global function definition for ‘legend’
kma.compare: no visible global function definition for ‘lines’
kma.show.results: no visible global function definition for ‘rainbow’
kma.show.results: no visible global function definition for ‘dev.new’
kma.show.results: no visible global function definition for ‘matplot’
kma.show.results: no visible global function definition for ‘title’
kma.show.results: no visible global function definition for ‘lines’
kma.show.results: no visible global function definition for ‘legend’
kma.show.results: no visible global function definition for ‘plot’
kma.show.results: no visible global function definition for ‘abline’
kma.show.results: no visible global function definition for ‘boxplot’
kma.show.results: no visible global function definition for ‘axis’
kma.similarity: no visible global function definition for ‘approx’
Undefined global functions or variables:
  abline approx axis box boxplot dev.new is legend lines loess matplot
  optim plot points predict rainbow runif title
Consider adding
  importFrom("grDevices", "dev.new", "rainbow")
  importFrom("graphics", "abline", "axis", "box", "boxplot", "legend",
             "lines", "matplot", "plot", "points", "title")
  importFrom("methods", "is")
  importFrom("stats", "approx", "loess", "optim", "predict", "runif")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').