.refit: no visible global function definition for ‘coef’
.refit: no visible global function definition for ‘lm’
.refit: no visible global function definition for ‘predict’
construct.s: no visible global function definition for ‘coef’
fit.logl: no visible global function definition for ‘lm’
fit.logl: no visible global function definition for ‘coef’
fit.logl: no visible global function definition for ‘nls’
fit.nls: no visible global function definition for ‘lm’
fit.nls: no visible global function definition for ‘predict’
fit.nls: no visible global function definition for ‘nls’
mcsimex: no visible global function definition for ‘coef’
mcsimex: no visible global function definition for ‘residuals’
mcsimex: no visible global function definition for ‘update’
mcsimex: no visible global function definition for ‘cov’
mcsimex: no visible global function definition for ‘lm’
mcsimex: no visible global function definition for ‘predict’
plot.mcsimex: no visible global function definition for ‘par’
plot.mcsimex: no visible global function definition for ‘coef’
plot.mcsimex: no visible global function definition for ‘predict’
plot.mcsimex: no visible global function definition for ‘plot’
plot.mcsimex: no visible global function definition for ‘points’
plot.mcsimex: no visible global function definition for ‘lines’
plot.simex: no visible global function definition for ‘par’
plot.simex: no visible global function definition for ‘coef’
plot.simex: no visible global function definition for ‘predict’
plot.simex: no visible global function definition for ‘plot’
plot.simex: no visible global function definition for ‘points’
plot.simex: no visible global function definition for ‘lines’
predict.mcsimex: no visible global function definition for ‘predict’
predict.simex: no visible global function definition for ‘predict’
print.mcsimex: no visible global function definition for ‘coef’
print.simex: no visible global function definition for ‘coef’
print.summary.mcsimex: no visible global function definition for
  ‘printCoefmat’
print.summary.simex: no visible global function definition for
  ‘printCoefmat’
simex: no visible global function definition for ‘coef’
simex: no visible global function definition for ‘resid’
simex: no visible global function definition for ‘rnorm’
simex: no visible global function definition for ‘update’
simex: no visible global function definition for ‘cov’
simex: no visible global function definition for ‘lm’
simex: no visible global function definition for ‘predict’
summary.mcsimex: no visible global function definition for ‘coef’
summary.mcsimex: no visible global function definition for ‘resid’
summary.mcsimex: no visible global function definition for ‘pt’
summary.simex: no visible global function definition for ‘coef’
summary.simex: no visible global function definition for ‘resid’
summary.simex: no visible global function definition for ‘pt’
Undefined global functions or variables:
  coef cov lines lm nls par plot points predict printCoefmat pt resid
  residuals rnorm update
Consider adding
  importFrom("graphics", "lines", "par", "plot", "points")
  importFrom("stats", "coef", "cov", "lm", "nls", "predict",
             "printCoefmat", "pt", "resid", "residuals", "rnorm",
             "update")
to your NAMESPACE file.