Invalid MIT-MAGIC-COOKIE-1 keycm.spline: no visible global function definition for ‘spline’
cm.splinefun: no visible global function definition for ‘splinefun’
compare.demogdata: no visible global function definition for ‘ts’
fdm: no visible global function definition for ‘na.omit’
fert.curve: no visible global function definition for ‘predict’
fert.curve: no visible global function definition for ‘approx’
fill.zero: no visible global function definition for ‘approx’
findroot: no visible global function definition for ‘uniroot’
flife.expectancy: no visible global function definition for ‘window’
flife.expectancy: no visible global function definition for ‘ts’
flife.expectancy: no visible global function definition for ‘time’
flife.expectancy: no visible global function definition for ‘na.omit’
flife.expectancy: no visible global function definition for ‘tsp<-’
flife.expectancy: no visible global function definition for ‘tsp’
forecast.fdm: no visible global function definition for ‘spline’
forecast.fdm: no visible global function definition for ‘qnorm’
forecast.fdm: no visible global function definition for ‘frequency’
forecast.fdmpr: no visible global function definition for ‘qnorm’
forecast.lca: no visible global function definition for ‘qnorm’
forecast.lca: no visible global function definition for ‘ts’
ftsaMISE: no visible global function definition for ‘frequency’
ftsaMISE: no visible global function definition for ‘start’
ftsaMISE: no visible global function definition for ‘spline’
ftsaMISE: no visible global function definition for ‘ts’
hmd.e0: no visible global function definition for ‘read.table’
hmd.e0: no visible global function definition for ‘ts’
hmd.mx: no visible global function definition for ‘read.table’
hmd.pop: no visible global function definition for ‘read.table’
lca: no visible global function definition for ‘na.omit’
lca: no visible global function definition for ‘predict’
lca: no visible global function definition for ‘lm’
lca: no visible global function definition for ‘glm’
lca: no visible binding for global variable ‘poisson’
lca: no visible global function definition for ‘ts’
life.expectancy: no visible global function definition for ‘ts’
lines.demogdata: no visible global function definition for ‘lines’
lines.lifetable: no visible global function definition for ‘lines’
newroot: no visible global function definition for ‘nlm’
plot.demogdata: no visible global function definition for ‘plot’
plot.errorfdm: no visible global function definition for ‘plot’
plot.fmforecast: no visible global function definition for ‘plot’
plot.fmforecast: no visible global function definition for ‘abline’
plot.fmforecast: no visible global function definition for ‘lines’
plot.lifetable: no visible global function definition for ‘plot’
pop.sim: no visible global function definition for ‘rpois’
pop.sim: no visible global function definition for ‘rbinom’
read.demogdata: no visible global function definition for ‘read.table’
simulate.fmforecast: no visible global function definition for ‘ts’
simulate.fmforecast: no visible global function definition for ‘tsp<-’
simulate.fmforecast: no visible global function definition for ‘tsp’
simulate.fmforecast: no visible global function definition for ‘qnorm’
smooth.demogdata: no visible global function definition for ‘approx’
smooth.demogdata: no visible global function definition for ‘loess’
smooth.demogdata: no visible global function definition for ‘predict’
smooth.fts: no visible global function definition for ‘spline’
smooth.fts: no visible global function definition for ‘approx’
smooth.monotonic.cobs: no visible global function definition for
  ‘predict’
smooth.monotonic.cobs: no visible global function definition for
  ‘approx’
tfr: no visible global function definition for ‘ts’
update.fmforecast: no visible global function definition for ‘qnorm’
update.fmforecast2: no visible global function definition for ‘qnorm’
Undefined global functions or variables:
  abline approx frequency glm lines lm loess na.omit nlm plot poisson
  predict qnorm rbinom read.table rpois spline splinefun start time ts
  tsp tsp<- uniroot window
Consider adding
  importFrom("graphics", "abline", "lines", "plot")
  importFrom("stats", "approx", "frequency", "glm", "lm", "loess",
             "na.omit", "nlm", "poisson", "predict", "qnorm", "rbinom",
             "rpois", "spline", "splinefun", "start", "time", "ts",
             "tsp", "tsp<-", "uniroot", "window")
  importFrom("utils", "read.table")
to your NAMESPACE file.