.computeValueReduct: no visible global function definition for 'combn'
.findAllReductsFromCore: no visible global function definition for
  'combn'
.findFirstReductsFromCore: no visible global function definition for
  'combn'
.findSmallestReductFamilyFromCore: no visible global function
  definition for 'combn'
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for 'combn'
.findAllReductsFromCore: no visible global function definition for
  'combn'
.findFirstReductsFromCore: no visible global function definition for
  'combn'
.findSmallestReductFamilyFromCore: no visible global function
  definition for 'combn'
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for 'combn'
.findAllReductsFromCore: no visible global function definition for
  'combn'
.findFirstReductsFromCore: no visible global function definition for
  'combn'
.findSmallestReductFamilyFromCore: no visible global function
  definition for 'combn'
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for ‘combn’
.findAllReductsFromCore: no visible global function definition for
  ‘combn’
.findFirstReductsFromCore: no visible global function definition for
  ‘combn’
.findSmallestReductFamilyFromCore: no visible global function
  definition for ‘combn’
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.
.computeValueReduct: no visible global function definition for 'combn'
.findAllReductsFromCore: no visible global function definition for
  'combn'
.findFirstReductsFromCore: no visible global function definition for
  'combn'
.findSmallestReductFamilyFromCore: no visible global function
  definition for 'combn'
Undefined global functions or variables:
  combn
Consider adding
  importFrom("utils", "combn")
to your NAMESPACE file.