floodlight: no visible global function definition for ‘is’
floodlight: no visible global function definition for ‘coef’
floodlight: no visible global function definition for ‘vcov’
floodlight: no visible global function definition for ‘qt’
floodlight: no visible global function definition for ‘pt’
jn: no visible global function definition for ‘is’
jn: no visible global function definition for ‘coef’
jn: no visible global function definition for ‘vcov’
jn: no visible global function definition for ‘qt’
jn: no visible global function definition for ‘pt’
pickapoint: no visible global function definition for ‘is’
pickapoint: no visible global function definition for ‘coef’
pickapoint: no visible global function definition for ‘vcov’
pickapoint: no visible global function definition for ‘qt’
pickapoint: no visible global function definition for ‘quantile’
pickapoint: no visible global function definition for ‘sd’
pickapoint: no visible global function definition for ‘pt’
plot.jn: no visible global function definition for ‘is’
plot.jn: no visible global function definition for ‘polygon’
plot.jn: no visible global function definition for ‘lines’
plot.jn: no visible global function definition for ‘axis’
plot.jn: no visible global function definition for ‘mtext’
plot.jn: no visible global function definition for ‘abline’
plot.pickapoint: no visible global function definition for ‘is’
plot.pickapoint: no visible global function definition for ‘arrows’
plot.pickapoint: no visible global function definition for ‘axis’
plot.pickapoint: no visible global function definition for ‘mtext’
plot.pickapoint: no visible global function definition for ‘abline’
spotlight: no visible global function definition for ‘is’
spotlight: no visible global function definition for ‘coef’
spotlight: no visible global function definition for ‘vcov’
spotlight: no visible global function definition for ‘qt’
spotlight: no visible global function definition for ‘quantile’
spotlight: no visible global function definition for ‘sd’
spotlight: no visible global function definition for ‘pt’
Undefined global functions or variables:
  abline arrows axis coef is lines mtext polygon pt qt quantile sd vcov
Consider adding
  importFrom("graphics", "abline", "arrows", "axis", "lines", "mtext",
             "polygon")
  importFrom("methods", "is")
  importFrom("stats", "coef", "pt", "qt", "quantile", "sd", "vcov")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').