basis_mpl: no visible global function definition for 'dnorm'
basis_mpl: no visible global function definition for 'pnorm'
coxph_mpl: no visible global function definition for 'terms'
coxph_mpl: no visible global function definition for 'model.extract'
coxph_mpl: no visible global function definition for 'runif'
coxph_mpl: no visible global function definition for 'model.matrix'
coxph_mpl: no visible binding for global variable 'contrasts'
knots_mpl: no visible global function definition for 'quantile'
knots_mpl: no visible global function definition for 'pnorm'
penalty_mpl : int_rij_2.fun: no visible global function definition for
  'pnorm'
penalty_mpl : int_rij_2.fun: no visible global function definition for
  'dnorm'
penalty_mpl : int_rij_1.fun: no visible global function definition for
  'pnorm'
penalty_mpl : int_rij_1.fun: no visible global function definition for
  'dnorm'
plot.coxph_mpl: no visible global function definition for
  'devAskNewPage'
plot.coxph_mpl: no visible global function definition for
  'terrain.colors'
plot.coxph_mpl: no visible global function definition for 'quantile'
plot.coxph_mpl: no visible global function definition for 'plot'
plot.coxph_mpl: no visible global function definition for 'abline'
plot.coxph_mpl: no visible global function definition for 'gray'
plot.coxph_mpl: no visible global function definition for 'lines'
plot.coxph_mpl: no visible global function definition for 'axis'
plot.coxph_mpl: no visible global function definition for 'points'
plot.coxph_mpl: no visible global function definition for 'legend'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'plot'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'rect'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'gray'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'abline'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'axis'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'polygon'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'lines'
plot.coxph_mpl : plot_bh: no visible global function definition for
  'legend'
plot.predict.coxph_mpl: no visible global function definition for
  'terrain.colors'
plot.predict.coxph_mpl: no visible global function definition for
  'plot'
plot.predict.coxph_mpl: no visible global function definition for
  'axis'
plot.predict.coxph_mpl: no visible global function definition for
  'abline'
plot.predict.coxph_mpl: no visible global function definition for
  'mtext'
plot.predict.coxph_mpl: no visible global function definition for
  'arrows'
plot.predict.coxph_mpl: no visible global function definition for
  'points'
plot.predict.coxph_mpl: no visible global function definition for
  'legend'
plot.predict.coxph_mpl: no visible global function definition for
  'rect'
plot.predict.coxph_mpl: no visible global function definition for
  'gray'
plot.predict.coxph_mpl: no visible global function definition for
  'polygon'
plot.predict.coxph_mpl: no visible global function definition for
  'lines'
plot.residuals.coxph_mpl: no visible global function definition for
  'devAskNewPage'
plot.residuals.coxph_mpl: no visible global function definition for
  'plot'
plot.residuals.coxph_mpl: no visible global function definition for
  'mtext'
plot.residuals.coxph_mpl: no visible global function definition for
  'abline'
plot.residuals.coxph_mpl: no visible global function definition for
  'axis'
plot.residuals.coxph_mpl: no visible global function definition for
  'legend'
plot.residuals.coxph_mpl: no visible global function definition for
  'quantile'
predict.coxph_mpl: no visible global function definition for 'quantile'
print.summary.coxph_mpl: no visible global function definition for
  'printCoefmat'
summary.coxph_mpl: no visible global function definition for 'pnorm'
Undefined global functions or variables:
  abline arrows axis contrasts devAskNewPage dnorm gray legend lines
  model.extract model.matrix mtext plot pnorm points polygon
  printCoefmat quantile rect runif terms terrain.colors
Consider adding
  importFrom("grDevices", "devAskNewPage", "gray", "terrain.colors")
  importFrom("graphics", "abline", "arrows", "axis", "legend", "lines",
             "mtext", "plot", "points", "polygon", "rect")
  importFrom("stats", "contrasts", "dnorm", "model.extract",
             "model.matrix", "pnorm", "printCoefmat", "quantile",
             "runif", "terms")
to your NAMESPACE file.