bbmm.contour: no visible global function definition for 'na.omit'
bbmm.contour: no visible global function definition for 'optimize'
bbmm.contour: no visible global function definition for 'contour'
bbmm.contour: no visible global function definition for 'points'
bbmm.contour: no visible global function definition for 'lines'
brownian.bridge: no visible global function definition for 'sd'
brownian.motion.variance: no visible global function definition for
  'optimize'
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for 'na.omit'
bbmm.contour: no visible global function definition for 'optimize'
bbmm.contour: no visible global function definition for 'contour'
bbmm.contour: no visible global function definition for 'points'
bbmm.contour: no visible global function definition for 'lines'
brownian.bridge: no visible global function definition for 'sd'
brownian.motion.variance: no visible global function definition for
  'optimize'
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for 'na.omit'
bbmm.contour: no visible global function definition for 'optimize'
bbmm.contour: no visible global function definition for 'contour'
bbmm.contour: no visible global function definition for 'points'
bbmm.contour: no visible global function definition for 'lines'
brownian.bridge: no visible global function definition for 'sd'
brownian.motion.variance: no visible global function definition for
  'optimize'
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for ‘na.omit’
bbmm.contour: no visible global function definition for ‘optimize’
bbmm.contour: no visible global function definition for ‘contour’
bbmm.contour: no visible global function definition for ‘points’
bbmm.contour: no visible global function definition for ‘lines’
brownian.bridge: no visible global function definition for ‘sd’
brownian.motion.variance: no visible global function definition for
  ‘optimize’
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.
bbmm.contour: no visible global function definition for 'na.omit'
bbmm.contour: no visible global function definition for 'optimize'
bbmm.contour: no visible global function definition for 'contour'
bbmm.contour: no visible global function definition for 'points'
bbmm.contour: no visible global function definition for 'lines'
brownian.bridge: no visible global function definition for 'sd'
brownian.motion.variance: no visible global function definition for
  'optimize'
Undefined global functions or variables:
  contour lines na.omit optimize points sd
Consider adding
  importFrom("graphics", "contour", "lines", "points")
  importFrom("stats", "na.omit", "optimize", "sd")
to your NAMESPACE file.