E_logitnorm : <anonymous>: no visible global function definition for
  ‘integrate’
F_const : <anonymous>: no visible global function definition for
  ‘runif’
F_exp : <anonymous>: no visible global function definition for ‘rexp’
F_gam : <anonymous>: no visible global function definition for ‘rgamma’
F_gam_mix : <anonymous>: no visible global function definition for
  ‘rbinom’
F_gam_mix : <anonymous>: no visible global function definition for
  ‘rgamma’
F_unif : <anonymous>: no visible global function definition for ‘runif’
F_weib : <anonymous>: no visible global function definition for
  ‘rweibull’
PIR_MOM: no visible binding for global variable ‘var’
PIR_Phi: no visible global function definition for ‘uniroot’
PIRbootstrappair: no visible binding for global variable ‘var’
PIRbootstrappair: no visible global function definition for ‘quantile’
PIRbootstrappair_old: no visible global function definition for
  ‘quantile’
eta_star_phi : <anonymous>: no visible global function definition for
  ‘uniroot’
generatePIRData: no visible binding for global variable ‘var’
incidence_bounds: no visible binding for global variable ‘var’
incidence_bounds: no visible binding for global variable ‘nobs’
incidence_bounds: no visible global function definition for ‘qnorm’
interim_bounds: no visible binding for global variable ‘var’
interim_bounds: no visible binding for global variable ‘nobs’
interim_bounds: no visible global function definition for ‘qnorm’
logRespRatio: no visible binding for global variable ‘var’
logRespRatio: no visible global function definition for ‘qnorm’
pgamma_eq: no visible global function definition for ‘pgamma’
prevalence_bounds: no visible binding for global variable ‘var’
prevalence_bounds: no visible binding for global variable ‘nobs’
prevalence_bounds: no visible global function definition for ‘qnorm’
pweibull_eq: no visible global function definition for ‘integrate’
r_AR1: no visible global function definition for ‘rnorm’
r_AR1: no visible global function definition for ‘dist’
r_behavior_stream_single: no visible global function definition for
  ‘rbinom’
reported_observations: no visible global function definition for
  ‘aggregate’
reported_observations: no visible binding for global variable ‘var’
rgamma_eq : <anonymous>: no visible global function definition for
  ‘uniroot’
rgamma_eq: no visible global function definition for ‘runif’
rgamma_mix_eq : <anonymous>: no visible global function definition for
  ‘uniroot’
rgamma_mix_eq: no visible global function definition for ‘runif’
rweibull_eq : <anonymous>: no visible global function definition for
  ‘uniroot’
rweibull_eq: no visible global function definition for ‘runif’
smooth_cov: no visible global function definition for ‘dist’
Undefined global functions or variables:
  aggregate dist integrate nobs pgamma qnorm quantile rbinom rexp
  rgamma rnorm runif rweibull uniroot var
Consider adding
  importFrom("stats", "aggregate", "dist", "integrate", "nobs", "pgamma",
             "qnorm", "quantile", "rbinom", "rexp", "rgamma", "rnorm",
             "runif", "rweibull", "uniroot", "var")
to your NAMESPACE file.