jzs_cor: no visible global function definition for 'runif'
jzs_cor: no visible global function definition for 'sd'
jzs_cor: no visible global function definition for 'cor'
jzs_cor : jzs_corbf: no visible global function definition for
  'integrate'
jzs_corSD: no visible global function definition for 'runif'
jzs_corSD: no visible global function definition for 'sd'
jzs_corSD: no visible global function definition for 'cor'
jzs_corSD : mydt: no visible global function definition for 'dt'
jzs_corSD: no visible global function definition for 'dcauchy'
jzs_corSD : mydt2: no visible global function definition for 'dt'
jzs_corSD: no visible global function definition for 'optim'
jzs_corSD: no visible global function definition for 'dnorm'
jzs_corSD: no visible global function definition for 'splinefun'
jzs_corSD: no visible global function definition for 'density'
jzs_med: no visible global function definition for 'runif'
jzs_med: no visible global function definition for 'sd'
jzs_med : jzs_partcor_basic: no visible global function definition for
  'sd'
jzs_med : jzs_partcor_basic: no visible global function definition for
  'lm'
jzs_med : jzs_partcor_basic : jzs_partcorbf: no visible global function
  definition for 'integrate'
jzs_med: no visible global function definition for 'quantile'
jzs_medSD: no visible global function definition for 'runif'
jzs_medSD: no visible global function definition for 'sd'
jzs_medSD : mydt: no visible global function definition for 'dt'
jzs_medSD: no visible global function definition for 'dcauchy'
jzs_medSD: no visible global function definition for 'pt'
jzs_medSD : mydt2: no visible global function definition for 'dt'
jzs_medSD: no visible global function definition for 'optim'
jzs_medSD: no visible global function definition for 'dnorm'
jzs_medSD: no visible global function definition for 'splinefun'
jzs_medSD: no visible global function definition for 'density'
jzs_medSD: no visible global function definition for 'quantile'
jzs_partcor: no visible global function definition for 'runif'
jzs_partcor: no visible global function definition for 'sd'
jzs_partcor: no visible global function definition for 'lm'
jzs_partcor : jzs_partcorbf: no visible global function definition for
  'integrate'
jzs_partcorSD: no visible global function definition for 'runif'
jzs_partcorSD: no visible global function definition for 'sd'
jzs_partcorSD : mydt: no visible global function definition for 'dt'
jzs_partcorSD: no visible global function definition for 'dcauchy'
jzs_partcorSD : mydt2: no visible global function definition for 'dt'
jzs_partcorSD: no visible global function definition for 'optim'
jzs_partcorSD: no visible global function definition for 'dnorm'
jzs_partcorSD: no visible global function definition for 'splinefun'
jzs_partcorSD: no visible global function definition for 'density'
plot.CI: no visible global function definition for 'hist'
plot.CI: no visible global function definition for 'abline'
plot.CI: no visible global function definition for 'quantile'
plot.CI: no visible global function definition for 'median'
plot.CI: no visible global function definition for 'legend'
plot.JZSMed: no visible global function definition for 'par'
plot.JZSMed: no visible global function definition for 'plot'
plot.JZSMed: no visible global function definition for 'points'
plot.JZSMed: no visible global function definition for 'arrows'
plot.JZSMed: no visible global function definition for 'text'
plot.JZSMed: no visible global function definition for 'legend'
Undefined global functions or variables:
  abline arrows cor dcauchy density dnorm dt hist integrate legend lm
  median optim par plot points pt quantile runif sd splinefun text
Consider adding
  importFrom("graphics", "abline", "arrows", "hist", "legend", "par",
             "plot", "points", "text")
  importFrom("stats", "cor", "dcauchy", "density", "dnorm", "dt",
             "integrate", "lm", "median", "optim", "pt", "quantile",
             "runif", "sd", "splinefun")
to your NAMESPACE file.