bayesclass.mlbench.ringnorm: no visible global function definition for
  'mahalanobis'
bayesclass.mlbench.threenorm: no visible global function definition for
  'mahalanobis'
mlbench.1spiral: no visible global function definition for 'rnorm'
mlbench.2dnormals: no visible global function definition for 'rnorm'
mlbench.cassini: no visible global function definition for 'runif'
mlbench.circle: no visible global function definition for 'runif'
mlbench.cuboids: no visible global function definition for 'runif'
mlbench.friedman1: no visible global function definition for 'runif'
mlbench.friedman1: no visible global function definition for 'rnorm'
mlbench.friedman2: no visible global function definition for 'runif'
mlbench.friedman2: no visible global function definition for 'rnorm'
mlbench.friedman3: no visible global function definition for 'runif'
mlbench.friedman3: no visible global function definition for 'rnorm'
mlbench.hypercube: no visible global function definition for 'rnorm'
mlbench.peak: no visible global function definition for 'runif'
mlbench.peak: no visible global function definition for 'rnorm'
mlbench.ringnorm: no visible global function definition for 'rnorm'
mlbench.shapes: no visible global function definition for 'rnorm'
mlbench.shapes: no visible global function definition for 'runif'
mlbench.simplex: no visible global function definition for 'rnorm'
mlbench.smiley: no visible global function definition for 'rnorm'
mlbench.smiley: no visible global function definition for 'runif'
mlbench.threenorm: no visible global function definition for 'runif'
mlbench.threenorm: no visible global function definition for 'rnorm'
mlbench.twonorm: no visible global function definition for 'rnorm'
mlbench.xor: no visible global function definition for 'runif'
plot.mlbench: no visible global function definition for 'pairs'
Undefined global functions or variables:
  mahalanobis pairs rnorm runif
Consider adding
  importFrom("graphics", "pairs")
  importFrom("stats", "mahalanobis", "rnorm", "runif")
to your NAMESPACE file.