.onAttach: no visible global function definition for ‘addhook’
.onAttach: no visible global function definition for ‘lava.options’
Dpmvnorm: no visible global function definition for ‘lava.options’
Dpmvnorm: no visible global function definition for ‘runif’
Dpmvnorm: no visible global function definition for ‘dnorm’
Dpmvnorm: no visible global function definition for ‘pmvnorm’
Dpmvnorm: no visible global function definition for ‘dmvnorm’
Dpmvnorm: no visible global function definition for ‘Inverse’
Dthetapmvnorm: no visible global function definition for ‘lava.options’
Dthetapmvnorm: no visible global function definition for ‘runif’
Dthetapmvnorm: no visible global function definition for ‘Inverse’
Dthetapmvnorm : S0: no visible global function definition for ‘pmvnorm’
binary.lvm: no visible global function definition for ‘covfix<-’
cens.score: no visible global function definition for ‘Inverse’
clprobit: no visible global function definition for ‘endogenous’
clprobit: no visible global function definition for ‘is.Surv’
clprobit: no visible global function definition for ‘combn’
clprobit: no visible global function definition for ‘estimate’
clprobit: no visible global function definition for ‘score’
clprobit: no visible global function definition for ‘vcov’
clprobit: no visible global function definition for ‘pnorm’
lava.tobit.color.hook: no visible global function definition for ‘vars’
lava.tobit.estimate.hook: no visible global function definition for
  ‘endogenous’
lava.tobit.estimate.hook: no visible global function definition for
  ‘lava.options’
lava.tobit.estimate.hook: no visible global function definition for
  ‘is.Surv’
mom.cens: no visible global function definition for ‘moments’
mom.cens: no visible global function definition for ‘Inverse’
plotres: no visible global function definition for ‘endogenous’
plotres: no visible global function definition for ‘residuals’
plotres: no visible global function definition for ‘Weight’
plotres: no visible global function definition for ‘Surv’
plotres: no visible global function definition for ‘survfit’
plotres: no visible global function definition for ‘lines’
plotres: no visible global function definition for ‘pnorm’
tobit_gradient.lvm: no visible global function definition for
  ‘lava.options’
tobit_gradient.lvm: no visible global function definition for ‘runif’
tobit_gradient.lvm: no visible global function definition for
  ‘manifest’
tobit_gradient.lvm: no visible global function definition for
  ‘endogenous’
tobit_logLik.lvm: no visible binding for global variable
  ‘gaussian_logLik.lvm’
tobit_objective.lvm: no visible global function definition for
  ‘lava.options’
tobit_objective.lvm: no visible global function definition for ‘runif’
tobit_objective.lvm: no visible global function definition for
  ‘manifest’
tobit_objective.lvm: no visible global function definition for
  ‘endogenous’
tobit_objective.lvm: no visible global function definition for
  ‘modelVar’
tobit_objective.lvm: no visible global function definition for
  ‘dmvnorm’
tobit_objective.lvm : <anonymous>: no visible global function
  definition for ‘pmvnorm’
tobit_objective.lvm: no visible global function definition for
  ‘pmvnorm’
tobitw_gradient.lvm: no visible global function definition for
  ‘lava.options’
tobitw_gradient.lvm: no visible global function definition for ‘runif’
tobitw_gradient.lvm: no visible global function definition for
  ‘manifest’
tobitw_gradient.lvm: no visible global function definition for
  ‘endogenous’
Undefined global functions or variables:
  Inverse Surv Weight addhook combn covfix<- dmvnorm dnorm endogenous
  estimate gaussian_logLik.lvm is.Surv lava.options lines manifest
  modelVar moments pmvnorm pnorm residuals runif score survfit vars
  vcov
Consider adding
  importFrom("graphics", "lines")
  importFrom("stats", "dnorm", "pnorm", "residuals", "runif", "vcov")
  importFrom("utils", "combn")
to your NAMESPACE file.