plot.x12work: no visible global function definition for ‘par’
plot_original_seasonal_trend: no visible global function definition for
  ‘points’
plot_original_seasonal_trend: no visible global function definition for
  ‘legend’
plot_original_seasonal_trend: no visible global function definition for
  ‘start’
plot_rsd_acf: no visible global function definition for ‘abline’
plot_rsd_acf: no visible global function definition for ‘axis’
plot_rsd_acf: no visible global function definition for ‘lines’
plot_seasonal_factors: no visible global function definition for
  ‘frequency’
plot_seasonal_factors: no visible global function definition for ‘axis’
plot_seasonal_factors: no visible global function definition for
  ‘abline’
plot_seasonal_factors: no visible global function definition for
  ‘points’
plot_seasonal_factors: no visible global function definition for
  ‘legend’
plot_spectrum_work: no visible global function definition for ‘par’
plot_spectrum_work: no visible global function definition for ‘layout’
plot_spectrum_work: no visible global function definition for ‘points’
plot_spectrum_work: no visible global function definition for ‘abline’
plot_spectrum_work: no visible global function definition for ‘axis’
plot_spectrum_work: no visible global function definition for ‘legend’
readSpcS: no visible global function definition for ‘ts’
readx12Out: no visible global function definition for ‘ts’
readx12Out: no visible global function definition for ‘read.table’
summaryworkhorse: no visible global function definition for
  ‘write.table’
x12work: no visible global function definition for ‘frequency’
x12work: no visible global function definition for ‘start’
x12work: no visible global function definition for ‘end’
crossVal,ts: no visible global function definition for ‘start’
crossVal,ts: no visible global function definition for ‘frequency’
crossVal,ts: no visible global function definition for ‘end’
crossVal,ts: no visible global function definition for ‘window’
crossVal,ts: no visible global function definition for ‘lines’
crossVal,ts: no visible global function definition for ‘points’
crossVal,ts: no visible global function definition for ‘time’
crossVal,ts: no visible global function definition for ‘axTicks’
crossVal,ts: no visible global function definition for ‘axis’
plot,x12Batch: no visible global function definition for ‘par’
plot,x12Batch: no visible binding for global variable ‘xb’
plot,x12Output: no visible global function definition for ‘frequency’
plot,x12Output: no visible global function definition for ‘window’
plot,x12Output: no visible global function definition for ‘par’
plot,x12Output : <anonymous>: no visible global function definition for
  ‘na.omit’
plot,x12Output: no visible global function definition for ‘na.omit’
plot,x12Output: no visible global function definition for ‘layout’
plot,x12Output: no visible global function definition for ‘lines’
plot,x12Output: no visible global function definition for ‘points’
plot,x12Output: no visible global function definition for ‘axTicks’
plot,x12Output: no visible global function definition for ‘time’
plot,x12Output: no visible global function definition for ‘axis’
plot,x12Output: no visible global function definition for ‘legend’
plot,x12Output : <anonymous>: no visible global function definition for
  ‘abline’
plot,x12Output: no visible global function definition for ‘abline’
plot,x12Output : <anonymous>: no visible global function definition for
  ‘points’
plot,x12Output : <anonymous>: no visible global function definition for
  ‘window’
plot,x12Output : <anonymous>: no visible global function definition for
  ‘frequency’
plot,x12Output : <anonymous>: no visible global function definition for
  ‘time’
plotFbcast,x12Output: no visible global function definition for
  ‘abline’
plotFbcast,x12Output: no visible global function definition for ‘time’
plotFbcast,x12Output: no visible global function definition for
  ‘points’
plotFbcast,x12Output: no visible global function definition for ‘end’
plotFbcast,x12Output: no visible global function definition for
  ‘frequency’
plotFbcast,x12Output: no visible global function definition for ‘start’
plotFbcast,x12Output: no visible global function definition for
  ‘polygon’
plotFbcast,x12Output: no visible global function definition for ‘lines’
plotRsdAcf,x12Output: no visible global function definition for ‘axis’
plotRsdAcf,x12Output: no visible global function definition for
  ‘abline’
plotRsdAcf,x12Output: no visible global function definition for ‘lines’
plotRsdAcf,x12Output: no visible global function definition for ‘text’
plotSeasFac,x12Output: no visible global function definition for
  ‘frequency’
plotSeasFac,x12Output: no visible global function definition for ‘par’
plotSeasFac,x12Output: no visible global function definition for
  ‘layout’
plotSeasFac,x12Output: no visible global function definition for ‘axis’
plotSeasFac,x12Output: no visible global function definition for
  ‘abline’
plotSeasFac,x12Output: no visible global function definition for
  ‘points’
plotSeasFac,x12Output: no visible global function definition for
  ‘legend’
plotSpec,x12Output: no visible global function definition for
  ‘frequency’
times,x12Output: no visible global function definition for ‘start’
times,x12Output: no visible global function definition for ‘end’
x12,ts: no visible binding for global variable ‘out’
x12,x12Batch: no visible global function definition for ‘mclapply’
x12,x12Single: no visible binding for global variable ‘out’
Undefined global functions or variables:
  abline axTicks axis end frequency layout legend lines mclapply
  na.omit out par points polygon read.table start text time ts window
  write.table xb
Consider adding
  importFrom("graphics", "abline", "axTicks", "axis", "layout", "legend",
             "lines", "par", "points", "polygon", "text")
  importFrom("stats", "end", "frequency", "na.omit", "start", "time",
             "ts", "window")
  importFrom("utils", "read.table", "write.table")
to your NAMESPACE file.