coxph.EC : maf.fun: no visible global function definition for 'na.omit'
coxph.EC : maf.fun.x: no visible global function definition for
  'na.omit'
coxph.EC : cor.snp: no visible global function definition for 'sd'
coxph.EC : cor.snp: no visible global function definition for 'cor'
coxph.EC: no visible global function definition for 'pchisq'
coxph.ped : read.in.data: no visible global function definition for
  'read.table'
coxph.ped: no visible global function definition for 'read.csv'
coxph.ped: no visible global function definition for 'na.omit'
coxph.ped: no visible global function definition for 'var'
coxph.ped: no visible binding for global variable 'var'
coxph.ped: no visible global function definition for 'cor'
coxph.ped: no visible global function definition for 'write.table'
coxph.ped: no visible global function definition for 'read.table'
coxph.ped: no visible global function definition for 'dbeta'
coxph.ped: no visible global function definition for 'pchisq'
gc.fun: no visible global function definition for 'read.csv'
gc.fun: no visible global function definition for 'read.table'
gc.fun: no visible global function definition for 'qchisq'
gc.fun: no visible global function definition for 'median'
gc.fun: no visible global function definition for 'na.omit'
gc.fun: no visible global function definition for 'pchisq'
gc.fun: no visible global function definition for 'write.table'
gc.fun: no visible global function definition for 'dbeta'
glmm.EC : maf.fun: no visible global function definition for 'na.omit'
glmm.EC : maf.fun.x: no visible global function definition for
  'na.omit'
glmm.EC : cor.snp: no visible global function definition for 'sd'
glmm.EC : cor.snp: no visible global function definition for 'cor'
glmm.EC: no visible global function definition for 'logLik'
glmm.EC: no visible global function definition for 'coef'
glmm.EC: no visible global function definition for 'pchisq'
glmm.binped : read.in.data: no visible global function definition for
  'read.table'
glmm.binped: no visible global function definition for 'read.csv'
glmm.binped: no visible global function definition for 'na.omit'
glmm.binped: no visible global function definition for 'var'
glmm.binped: no visible binding for global variable 'var'
glmm.binped: no visible global function definition for 'cor'
glmm.binped: no visible global function definition for 'write.table'
glmm.binped: no visible global function definition for 'read.table'
glmm.binped: no visible global function definition for 'dbeta'
glmm.binped: no visible global function definition for 'pchisq'
lme.EC : maf.fun: no visible global function definition for 'na.omit'
lme.EC : maf.fun.x: no visible global function definition for 'na.omit'
lme.EC : cor.snp: no visible global function definition for 'sd'
lme.EC : cor.snp: no visible global function definition for 'cor'
lme.EC: no visible global function definition for 'pchisq'
lme.ped : read.in.data: no visible global function definition for
  'read.table'
lme.ped: no visible global function definition for 'read.csv'
lme.ped: no visible global function definition for 'na.omit'
lme.ped: no visible global function definition for 'var'
lme.ped: no visible binding for global variable 'var'
lme.ped: no visible global function definition for 'cor'
lme.ped: no visible global function definition for 'write.table'
lme.ped: no visible global function definition for 'read.table'
lme.ped: no visible global function definition for 'dbeta'
lme.ped: no visible global function definition for 'pchisq'
Undefined global functions or variables:
  coef cor dbeta logLik median na.omit pchisq qchisq read.csv
  read.table sd var write.table
Consider adding
  importFrom("stats", "coef", "cor", "dbeta", "logLik", "median",
             "na.omit", "pchisq", "qchisq", "sd", "var")
  importFrom("utils", "read.csv", "read.table", "write.table")
to your NAMESPACE file.