Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for 'tail'
createFormula: no visible global function definition for 'head'
createFormula: no visible global function definition for 'as.formula'
ezsim: no visible global function definition for 'runif'
plot.ezsim: no visible global function definition for 'quantile'
plot.ezsim: no visible global function definition for 'head'
plot.ezsim: no visible global function definition for 'tail'
plot.ezsim: no visible binding for global variable 'dnorm'
plot.ezsim: no visible binding for global variable 'pdf'
plot.ezsim: no visible global function definition for 'dev.off'
plot.ezsim : <anonymous>: no visible global function definition for
  'dev.new'
plot.summary.ezsim: no visible global function definition for 'head'
plot.summary.ezsim: no visible global function definition for 'tail'
plot.summary.ezsim: no visible binding for global variable 'pdf'
plot.summary.ezsim: no visible global function definition for 'dev.off'
plot.summary.ezsim : <anonymous>: no visible global function definition
  for 'dev.new'
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for 'tail'
createFormula: no visible global function definition for 'head'
createFormula: no visible global function definition for 'as.formula'
ezsim: no visible global function definition for 'runif'
plot.ezsim: no visible global function definition for 'quantile'
plot.ezsim: no visible global function definition for 'head'
plot.ezsim: no visible global function definition for 'tail'
plot.ezsim: no visible binding for global variable 'dnorm'
plot.ezsim: no visible binding for global variable 'pdf'
plot.ezsim: no visible global function definition for 'dev.off'
plot.ezsim : <anonymous>: no visible global function definition for
  'dev.new'
plot.summary.ezsim: no visible global function definition for 'head'
plot.summary.ezsim: no visible global function definition for 'tail'
plot.summary.ezsim: no visible binding for global variable 'pdf'
plot.summary.ezsim: no visible global function definition for 'dev.off'
plot.summary.ezsim : <anonymous>: no visible global function definition
  for 'dev.new'
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for 'tail'
createFormula: no visible global function definition for 'head'
createFormula: no visible global function definition for 'as.formula'
ezsim: no visible global function definition for 'runif'
plot.ezsim: no visible global function definition for 'quantile'
plot.ezsim: no visible global function definition for 'head'
plot.ezsim: no visible global function definition for 'tail'
plot.ezsim: no visible binding for global variable 'dnorm'
plot.ezsim: no visible binding for global variable 'pdf'
plot.ezsim: no visible global function definition for 'dev.off'
plot.ezsim : <anonymous>: no visible global function definition for
  'dev.new'
plot.summary.ezsim: no visible global function definition for 'head'
plot.summary.ezsim: no visible global function definition for 'tail'
plot.summary.ezsim: no visible binding for global variable 'pdf'
plot.summary.ezsim: no visible global function definition for 'dev.off'
plot.summary.ezsim : <anonymous>: no visible global function definition
  for 'dev.new'
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for ‘tail’
createFormula: no visible global function definition for ‘head’
createFormula: no visible global function definition for ‘as.formula’
ezsim: no visible global function definition for ‘runif’
plot.ezsim: no visible global function definition for ‘quantile’
plot.ezsim: no visible global function definition for ‘head’
plot.ezsim: no visible global function definition for ‘tail’
plot.ezsim: no visible binding for global variable ‘dnorm’
plot.ezsim: no visible binding for global variable ‘pdf’
plot.ezsim: no visible global function definition for ‘dev.off’
plot.ezsim : <anonymous>: no visible global function definition for
  ‘dev.new’
plot.summary.ezsim: no visible global function definition for ‘head’
plot.summary.ezsim: no visible global function definition for ‘tail’
plot.summary.ezsim: no visible binding for global variable ‘pdf’
plot.summary.ezsim: no visible global function definition for ‘dev.off’
plot.summary.ezsim : <anonymous>: no visible global function definition
  for ‘dev.new’
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.
Malformed Description field: should contain one or more complete sentences.
BugReports field is not a suitable URL but contains an email address:
   use the Contact field instead
createFormula: no visible global function definition for 'tail'
createFormula: no visible global function definition for 'head'
createFormula: no visible global function definition for 'as.formula'
ezsim: no visible global function definition for 'runif'
plot.ezsim: no visible global function definition for 'quantile'
plot.ezsim: no visible global function definition for 'head'
plot.ezsim: no visible global function definition for 'tail'
plot.ezsim: no visible binding for global variable 'dnorm'
plot.ezsim: no visible binding for global variable 'pdf'
plot.ezsim: no visible global function definition for 'dev.off'
plot.ezsim : <anonymous>: no visible global function definition for
  'dev.new'
plot.summary.ezsim: no visible global function definition for 'head'
plot.summary.ezsim: no visible global function definition for 'tail'
plot.summary.ezsim: no visible binding for global variable 'pdf'
plot.summary.ezsim: no visible global function definition for 'dev.off'
plot.summary.ezsim : <anonymous>: no visible global function definition
  for 'dev.new'
Undefined global functions or variables:
  as.formula dev.new dev.off dnorm head pdf quantile runif tail
Consider adding
  importFrom("grDevices", "dev.new", "dev.off", "pdf")
  importFrom("stats", "as.formula", "dnorm", "quantile", "runif")
  importFrom("utils", "head", "tail")
to your NAMESPACE file.