ddi_mrow: mrow and its child nodes

In Global-TIES-for-Children/rddi: R Interface to DDI Codebook 2.5

mrow and its child nodes

Description

mrow or Mathematical Row is a wrapper containing the presentation expression mi. It creates a single string without spaces consisting of the individual elements described within it. It can be used to create a single variable by concatenating other variables into a single string. It is used to create linking variables composed of multiple non-contiguous parts, or to define unique strings for various category values of a single variable. More information on these elements, especially their allowed attributes, can be found in the references.

Usage

ddi_mrow(...)

ddi_mi(...)

Arguments

...	Child nodes or attributes.

Details

Parent nodes

mrow is contained in catgry.

mrow specific child nodes

• ddi_mi() is the mathematical identifier. This is the token element containing the smallest unit in the mrow that carries meaning.

Value

A ddi_node object.

References

mrow documentation

mi documentation

Examples

ddi_mrow()

# Functions that need to be wrapped in ddi_mrow()

ddi_mi("1")

Global-TIES-for-Children/rddi documentation built on Oct. 24, 2022, 9:50 p.m.