.var.ij: no visible global function definition for ‘hcv’
.var.ij: no visible global function definition for ‘h.select’
.var.ij: no visible global function definition for ‘sd’
.var.ij: no visible binding for global variable ‘sd’
.var.ij: no visible global function definition for ‘sm.regression’
LiStengos: no visible global function definition for ‘h.select’
LiStengos: no visible global function definition for ‘hcv’
LiStengos: no visible binding for global variable ‘sd’
LiStengos: no visible global function definition for ‘optimize’
LiStengos: no visible global function definition for ‘sm.regression’
cal_df_gamma1: no visible global function definition for ‘binning’
cal_df_gamma2: no visible global function definition for ‘binning’
iteration: no visible global function definition for ‘ave’
iteration: no visible global function definition for ‘lm’
iteration: no visible global function definition for ‘h.select’
iteration: no visible global function definition for ‘hcv’
iteration: no visible binding for global variable ‘sd’
iteration: no visible global function definition for ‘optimize’
iteration: no visible global function definition for ‘sm.regression’
iteration: no visible global function definition for ‘na.omit’
iteration0: no visible global function definition for ‘sm.regression’
iteration0: no visible global function definition for ‘ave’
iteration0: no visible global function definition for ‘lm’
iteration0: no visible global function definition for ‘h.select’
plmm: no visible global function definition for ‘Formula’
plmm: no visible global function definition for ‘model.response’
plmm: no visible global function definition for ‘model.matrix’
plmm: no visible global function definition for ‘terms’
plmm.bs: no visible global function definition for ‘Formula’
plmm.bs: no visible global function definition for ‘model.response’
plmm.bs: no visible global function definition for ‘model.matrix’
plmm.bs: no visible global function definition for ‘ave’
plmm.bs: no visible global function definition for ‘rnorm’
plmm.bs: no visible global function definition for ‘terms’
plot.plmm: no visible global function definition for ‘Formula’
plot.plmm: no visible global function definition for ‘model.response’
plot.plmm: no visible global function definition for ‘model.matrix’
plot.plmm: no visible global function definition for ‘terms’
plot.plmm: no visible global function definition for ‘sm.regression’
predict.plmm: no visible global function definition for ‘Formula’
predict.plmm: no visible global function definition for ‘model.matrix’
predict.plmm: no visible global function definition for
  ‘model.response’
predict.plmm: no visible global function definition for ‘sm.regression’
print.summary.plmm: no visible global function definition for ‘terms’
print.summary.plmm: no visible global function definition for ‘Formula’
ranef.plmm: no visible global function definition for ‘Formula’
ranef.plmm: no visible global function definition for ‘model.response’
ranef.plmm: no visible global function definition for ‘model.matrix’
select.h0: no visible global function definition for ‘Formula’
select.h0: no visible global function definition for ‘model.response’
select.h0: no visible global function definition for ‘terms’
select.h0: no visible global function definition for ‘model.matrix’
select.h0: no visible global function definition for ‘h.select’
select.h0: no visible global function definition for ‘hcv’
summary.bs.plmm: no visible binding for global variable ‘sd’
summary.bs.plmm: no visible binding for global variable ‘quantile’
var.plot: no visible global function definition for ‘Formula’
var.plot: no visible global function definition for ‘model.response’
var.plot: no visible global function definition for ‘model.matrix’
var.plot: no visible global function definition for ‘sm.regression’
wplmm: no visible global function definition for ‘Formula’
wplmm: no visible global function definition for ‘model.response’
wplmm: no visible global function definition for ‘model.matrix’
wplmm: no visible global function definition for ‘terms’
Undefined global functions or variables:
  Formula ave binning h.select hcv lm model.matrix model.response
  na.omit optimize quantile rnorm sd sm.regression terms
Consider adding
  importFrom("stats", "ave", "lm", "model.matrix", "model.response",
             "na.omit", "optimize", "quantile", "rnorm", "sd", "terms")
to your NAMESPACE file.