is: Check whether an object is an 'Item-class'

In irt: Item Response Theory and Computerized Adaptive Testing Functions

Description

Check whether an object is an Item-class

Check whether an object is an Itempool-class object

Check whether an object is a Testlet-class object

Usage

is.Item(x)

is.Itempool(x)

is.Testlet(x)

Arguments

x	an object that is checked for being a member of 'Testlet' class

Author(s)

Emre Gonulates

Emre Gonulates

Emre Gonulates

Examples

i1 <- item(a = 1, b = 2)
is.Item(i1)
# Alternatively:
is(i1, "Item")

# Not an item:
is.Item("abc")

irt documentation built on Nov. 9, 2021, 9:07 a.m.