conc.ellipse: no visible global function definition for 'rainbow'
conc.ellipse: no visible global function definition for 'lines'
conc.ellipse: no visible global function definition for 'rgb'
conc.ellipse: no visible global function definition for 'col2rgb'
conc.ellipse: no visible global function definition for 'points'
conc.ellipse: no visible global function definition for 'text'
contrib: no visible global function definition for 'aggregate'
csMCA: no visible global function definition for 'aggregate'
csMCA : <anonymous>: no visible global function definition for 'lm'
dimeta2: no visible global function definition for 'lm'
multiMCA : <anonymous>: no visible global function definition for 'cor'
plot.csMCA: no visible global function definition for 'plot'
plot.csMCA: no visible global function definition for 'text'
plot.csMCA: no visible global function definition for 'abline'
plot.multiMCA: no visible global function definition for 'rainbow'
plot.multiMCA: no visible global function definition for 'plot'
plot.multiMCA: no visible global function definition for 'abline'
plot.multiMCA: no visible global function definition for 'text'
plot.speMCA: no visible global function definition for 'plot'
plot.speMCA: no visible global function definition for 'text'
plot.speMCA: no visible global function definition for 'abline'
plot.stMCA: no visible global function definition for 'plot'
plot.stMCA: no visible global function definition for 'text'
plot.stMCA: no visible global function definition for 'abline'
speMCA: no visible global function definition for 'aggregate'
speMCA : <anonymous>: no visible global function definition for 'lm'
stMCA: no visible global function definition for 'as.formula'
stMCA: no visible global function definition for 'lm'
stMCA: no visible global function definition for 'residuals'
stMCA : <anonymous>: no visible global function definition for 'lm'
textindsup: no visible global function definition for 'text'
textvarsup: no visible global function definition for 'text'
textvarsup: no visible global function definition for 'points'
varsup: no visible global function definition for 'aggregate'
varsup: no visible binding for global variable 'weighted.mean'
Undefined global functions or variables:
  abline aggregate as.formula col2rgb cor lines lm plot points rainbow
  residuals rgb text weighted.mean
Consider adding
  importFrom("grDevices", "col2rgb", "rainbow", "rgb")
  importFrom("graphics", "abline", "lines", "plot", "points", "text")
  importFrom("stats", "aggregate", "as.formula", "cor", "lm",
             "residuals", "weighted.mean")
to your NAMESPACE file.