rddi (version 0.1.1)

ddi_valrng: valrng, invalrng, and their child nodes

Description

Values for a particular variable that represent legitimate responses (valrng) or illegitimate response (invalrng). Must include item or range as a child element.

Usage

ddi_valrng(...)
ddi_invalrng(...)
ddi_item(...)
ddi_key(...)

Value

A ddi_node object.

Arguments

...

Child nodes or attributes.

Shared and complex child nodes

• ddi_notes()

• ddi_range()

Details

Parent nodes

valrng and invalrng are contained in var.

valrng and invalrng specific child nodes

ddi_item() is the counterpart to range; used to encode individual values. This is an empty element consisting only of its attributes. The "UNITS" attribute permits the specification of integer/real numbers. The "VALUE" attribute specifies the actual value.

ddi_key() is the range key. This element permits a listing of the category values and labels. While this information is coded separately in the Category element, there may be some value in having this information in proximity to the range of valid and invalid values. A table is permissible in this element.

References

valrng documentation

invalrng documentation

item documentation

key documentation

Examples

# ddi_valrng() and ddi_invalrng() requires either the ddi_item() or ddi_range() child node.

ddi_valrng(ddi_item())

ddi_invalrng(ddi_item())

ddi_valrng(ddi_range())

ddi_invalrng(ddi_range())

# Functions that must be wrapped in ddi_valrng() or ddi_invalrng()

ddi_item(VALUE = "1")

ddi_key("05 (PSU) Parti Socialiste Unifie et extreme gauche (Lutte Ouvriere) 
        [United Socialists and extreme left (Workers Struggle)] 50 Les Verts 
        [Green Party] 80 (FN) Front National et extreme droite [National Front 
        and extreme right]")