bare_fgls: no visible global function definition for 'as'
bare_fgls: no visible global function definition for 'lm'
fgls: no visible global function definition for 'model.frame'
fgls: no visible binding for global variable 'na.omit'
fgls: no visible global function definition for 'model.matrix'
fgls: no visible global function definition for 'terms'
fgls: no visible global function definition for 'model.extract'
fgls: no visible global function definition for 'lm'
fgls: no visible global function definition for 'read.csv'
fgls: no visible global function definition for 'as'
gls.batch: no visible global function definition for 'write.table'
gls.batch: no visible global function definition for 'read.table'
gls.batch: no visible global function definition for 'read.csv'
gls.batch: no visible global function definition for 'na.omit'
gls.batch: no visible global function definition for 'ave'
gls.batch: no visible global function definition for 'write.csv'
gls.batch: no visible global function definition for 'model.matrix'
gls.batch: no visible global function definition for 'as.formula'
gls.batch: no visible global function definition for 'as'
gls.batch.get: no visible global function definition for 'read.table'
gls.batch.get: no visible global function definition for 'na.omit'
gls.batch.get: no visible global function definition for 'ave'
logfun: no visible global function definition for 'as'
logfun: no visible global function definition for 'lm'
optim.logfun: no visible global function definition for 'var'
optim.logfun: no visible global function definition for 'optim'
Undefined global functions or variables:
  as as.formula ave lm model.extract model.frame model.matrix na.omit
  optim read.csv read.table terms var write.csv write.table
Consider adding
  importFrom("methods", "as")
  importFrom("stats", "as.formula", "ave", "lm", "model.extract",
             "model.frame", "model.matrix", "na.omit", "optim", "terms",
             "var")
  importFrom("utils", "read.csv", "read.table", "write.csv",
             "write.table")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').