minObjective | R Documentation |
Create min
-constraints related to an item parameter/value. That is, the created
constraints can be used to minimize the sum of the
item values (itemValues
) of the test form.
Note that this constraint can only be used when only one test form has to be assembled.
minObjective( nForms, itemValues, weight = 1, whichForms = seq_len(nForms), info_text = NULL, itemIDs = names(itemValues) )
nForms |
Number of forms to be created. |
itemValues |
Item parameter/values for which the sum per test form should be constrained. |
weight |
a weight for the real-valued variable(s). Useful when multiple constraints are combined. Should only be used if the implications are well understood. |
whichForms |
An integer vector indicating which test forms should be constrained. Defaults to all the test forms. |
info_text |
a character string of length 1, to be used in the |
itemIDs |
a character vector of item IDs in correct ordering, or NULL. |
An object of class "constraint"
.
# constraint that maximizes the sum of the itemValues maxObjective(nForms = 1, itemValues = rep(-2:2, 2))
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