c_score: no visible global function definition for ‘rbinom’
c_score_skew: no visible global function definition for ‘rbinom’
c_score_skew: no visible global function definition for ‘sd’
c_score_var: no visible global function definition for ‘rbinom’
c_score_var: no visible global function definition for ‘var’
checker: no visible global function definition for ‘rbinom’
checker: no visible global function definition for ‘combn’
czekanowski: no visible global function definition for ‘rpois’
czekanowski: no visible global function definition for ‘combn’
czekanowski_skew: no visible global function definition for ‘rpois’
czekanowski_skew: no visible global function definition for ‘combn’
czekanowski_skew: no visible global function definition for ‘sd’
czekanowski_var: no visible global function definition for ‘rpois’
czekanowski_var: no visible global function definition for ‘combn’
czekanowski_var: no visible global function definition for ‘var’
min_diff: no visible global function definition for ‘runif’
min_ratio: no visible global function definition for ‘runif’
null_model_engine: no visible global function definition for
  ‘txtProgressBar’
null_model_engine: no visible global function definition for
  ‘setTxtProgressBar’
pianka: no visible global function definition for ‘rpois’
pianka: no visible global function definition for ‘combn’
pianka_skew: no visible global function definition for ‘rpois’
pianka_skew: no visible global function definition for ‘combn’
pianka_skew: no visible global function definition for ‘sd’
pianka_var: no visible global function definition for ‘rpois’
pianka_var: no visible global function definition for ‘combn’
pianka_var: no visible global function definition for ‘var’
plot.coocnullmod: no visible global function definition for ‘par’
plot.coocnullmod: no visible global function definition for ‘mtext’
plot.coocnullmod: no visible global function definition for ‘rect’
plot.coocnullmod: no visible global function definition for ‘hist’
plot.coocnullmod: no visible global function definition for ‘abline’
plot.coocnullmod: no visible global function definition for ‘quantile’
plot.coocnullmod: no visible global function definition for ‘lines’
plot.coocnullmod: no visible global function definition for ‘lowess’
plot.nichenullmod: no visible global function definition for ‘par’
plot.nichenullmod: no visible global function definition for ‘hist’
plot.nichenullmod: no visible global function definition for ‘abline’
plot.nichenullmod: no visible global function definition for ‘quantile’
plot.nichenullmod: no visible global function definition for ‘mtext’
plot.nullmod: no visible global function definition for ‘par’
plot.nullmod: no visible global function definition for ‘hist’
plot.nullmod: no visible global function definition for ‘abline’
plot.nullmod: no visible global function definition for ‘quantile’
plot.nullmod: no visible global function definition for ‘mtext’
plot.sizenullmod: no visible global function definition for ‘par’
plot.sizenullmod: no visible global function definition for ‘hist’
plot.sizenullmod: no visible global function definition for ‘abline’
plot.sizenullmod: no visible global function definition for ‘quantile’
plot.sizenullmod: no visible global function definition for ‘mtext’
plot.sizenullmod: no visible global function definition for ‘lines’
plot.sizenullmod: no visible global function definition for ‘points’
plot.sizenullmod: no visible global function definition for ‘text’
plot.sizenullmod: no visible global function definition for ‘barplot’
ra1: no visible global function definition for ‘rpois’
ra1: no visible global function definition for ‘runif’
ra2: no visible global function definition for ‘rpois’
ra2: no visible global function definition for ‘runif’
ra3: no visible global function definition for ‘rpois’
ra4: no visible global function definition for ‘rpois’
ra4 : NonZeroRowShuffle: no visible global function definition for
  ‘runif’
ranMatGen: no visible global function definition for ‘rbeta’
ranMatGen: no visible global function definition for ‘rpois’
sim10: no visible global function definition for ‘runif’
sim9: no visible global function definition for ‘txtProgressBar’
sim9: no visible global function definition for ‘setTxtProgressBar’
sim9_single: no visible global function definition for ‘rbinom’
size_gamma: no visible global function definition for ‘rnorm’
size_gamma: no visible global function definition for ‘rgamma’
size_source_pool: no visible global function definition for ‘runif’
size_uniform: no visible global function definition for ‘runif’
size_uniform_user: no visible global function definition for ‘runif’
species_combo: no visible global function definition for ‘rbinom’
summary.coocnullmod: no visible global function definition for ‘var’
summary.coocnullmod: no visible global function definition for
  ‘quantile’
summary.coocnullmod: no visible global function definition for ‘sd’
summary.nichenullmod: no visible global function definition for ‘var’
summary.nichenullmod: no visible global function definition for
  ‘quantile’
summary.nichenullmod: no visible global function definition for ‘sd’
summary.nullmod: no visible global function definition for ‘var’
summary.nullmod: no visible global function definition for ‘quantile’
summary.nullmod: no visible global function definition for ‘sd’
summary.sizenullmod: no visible global function definition for ‘var’
summary.sizenullmod: no visible global function definition for
  ‘quantile’
summary.sizenullmod: no visible global function definition for ‘sd’
v_ratio: no visible global function definition for ‘rbinom’
v_ratio: no visible global function definition for ‘var’
v_ratio: no visible binding for global variable ‘var’
var_diff: no visible global function definition for ‘runif’
var_diff: no visible global function definition for ‘var’
var_ratio: no visible global function definition for ‘runif’
var_ratio: no visible global function definition for ‘var’
Undefined global functions or variables:
  abline barplot combn hist lines lowess mtext par points quantile
  rbeta rbinom rect rgamma rnorm rpois runif sd setTxtProgressBar text
  txtProgressBar var
Consider adding
  importFrom("graphics", "abline", "barplot", "hist", "lines", "mtext",
             "par", "points", "rect", "text")
  importFrom("stats", "lowess", "quantile", "rbeta", "rbinom", "rgamma",
             "rnorm", "rpois", "runif", "sd", "var")
  importFrom("utils", "combn", "setTxtProgressBar", "txtProgressBar")
to your NAMESPACE file.