ORplot.sub: no visible global function definition for 'par'
ORplot.sub: no visible global function definition for 'plot'
ORplot.sub: no visible global function definition for 'rect'
ORplot.sub: no visible global function definition for 'abline'
ORplot.sub: no visible global function definition for 'text'
ORplot.sub: no visible global function definition for 'segments'
ORplot.sub: no visible global function definition for 'points'
densityplot: no visible global function definition for 'terms'
densityplot: no visible global function definition for 'as.formula'
densityplot: no visible global function definition for 'rainbow'
densityplot: no visible global function definition for 'density'
densityplot: no visible global function definition for 'plot'
densityplot: no visible global function definition for 'lines'
densityplot: no visible global function definition for 'legend'
extractOR: no visible global function definition for 'confint'
extractOR: no visible global function definition for 'coef'
my.chisq.test: no visible global function definition for 'xtabs'
my.chisq.test: no visible global function definition for 'chisq.test'
my.chisq.test: no visible global function definition for 'fisher.test'
my.t.test: no visible global function definition for 'lm'
my.t.test: no visible global function definition for 'shapiro.test'
my.t.test: no visible global function definition for 'resid'
my.t.test: no visible global function definition for 'var.test'
my.t.test: no visible global function definition for 't.test'
my.t.test: no visible global function definition for 'kruskal.test'
my.t.test: no visible global function definition for 'anova'
mycph: no visible global function definition for 'terms'
mycph: no visible global function definition for 'as.formula'
mycsv.cbind.mytable: no visible global function definition for
  'write.table'
mycsv.mytable: no visible global function definition for 'write.csv'
mytable: no visible global function definition for 'terms'
mytable: no visible global function definition for 'as.formula'
mytable.sub: no visible global function definition for 'na.omit'
mytable2: no visible global function definition for 'terms'
mytable2: no visible global function definition for 'as.formula'
num_summary: no visible binding for global variable 'sd'
num_summary: no visible binding for global variable 'median'
num_summary: no visible binding for global variable 'mad'
num_summary: no visible binding for global variable 'IQR'
num_summary: no visible binding for global variable 'fivenum'
Undefined global functions or variables:
  IQR abline anova as.formula chisq.test coef confint density
  fisher.test fivenum kruskal.test legend lines lm mad median na.omit
  par plot points rainbow rect resid sd segments shapiro.test t.test
  terms text var.test write.csv write.table xtabs
Consider adding
  importFrom("grDevices", "rainbow")
  importFrom("graphics", "abline", "legend", "lines", "par", "plot",
             "points", "rect", "segments", "text")
  importFrom("stats", "IQR", "anova", "as.formula", "chisq.test", "coef",
             "confint", "density", "fisher.test", "fivenum",
             "kruskal.test", "lm", "mad", "median", "na.omit", "resid",
             "sd", "shapiro.test", "t.test", "terms", "var.test",
             "xtabs")
  importFrom("utils", "write.csv", "write.table")
to your NAMESPACE file.