bcf: no visible global function definition for ‘sd’
bcf : <anonymous>: no visible global function definition for ‘sd’
bcf: no visible global function definition for ‘setTxtProgressBar’
bcf: no visible binding for global variable ‘median’
brf: no visible global function definition for ‘sd’
brf : <anonymous>: no visible global function definition for ‘sd’
brf: no visible global function definition for ‘cor’
brf: no visible global function definition for ‘setTxtProgressBar’
brf: no visible binding for global variable ‘median’
dcc: no visible global function definition for ‘na.omit’
dcc: no visible global function definition for ‘tail’
dcplot: no visible global function definition for ‘par’
dcplot: no visible global function definition for ‘barplot’
dcplot: no visible global function definition for ‘axis’
dcplot: no visible global function definition for ‘lines’
dcplot: no visible global function definition for ‘text’
dendroclim: no visible global function definition for ‘na.omit’
dendroclim: no visible global function definition for ‘tail’
mdcc: no visible global function definition for ‘na.omit’
mdcc: no visible global function definition for ‘tail’
mdcc: no visible global function definition for ‘setTxtProgressBar’
mdcplot: no visible global function definition for ‘colorRamp’
mdcplot: no visible global function definition for ‘par’
mdcplot: no visible global function definition for ‘plot’
mdcplot: no visible global function definition for ‘axis’
mdcplot: no visible global function definition for ‘polygon’
mdcplot: no visible global function definition for ‘rgb’
mdcplot: no visible global function definition for ‘text’
nbcf: no visible global function definition for ‘sd’
nbcf : <anonymous>: no visible global function definition for ‘sd’
nbrf: no visible global function definition for ‘sd’
nbrf : <anonymous>: no visible global function definition for ‘sd’
nbrf: no visible global function definition for ‘cor’
Undefined global functions or variables:
  axis barplot colorRamp cor lines median na.omit par plot polygon rgb
  sd setTxtProgressBar tail text
Consider adding
  importFrom("grDevices", "colorRamp", "rgb")
  importFrom("graphics", "axis", "barplot", "lines", "par", "plot",
             "polygon", "text")
  importFrom("stats", "cor", "median", "na.omit", "sd")
  importFrom("utils", "setTxtProgressBar", "tail")
to your NAMESPACE file.