validateDifficulty | R Documentation |
These are internal functions for validating item objects for their item parameters.
validateDifficulty(object)
validateSlope(object)
validateGuessing(object)
validateNcat(object)
validateNthr(object)
validateCategory(object)
validateOrder(object)
object |
an item object. |
These functions return an error message string if the input object is not valid. These do not return anything for valid objects.
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