Example of the necessary variable metadata included in a Dataset JSON file based on the Iris data frame.
iris_itemsiris_items A data frame with 5 rows and 6 columns:
Unique identifier for Variable. Must correspond to ItemDef/@OID in Define-XML.
Display format supports data visualization of numeric float and date values.
Label for Variable
Data type for Variable
Length for Variable
Display format supports data visualization of numeric float and date values.
Indicates that this item is a key variable in the dataset structure. It also provides an ordering for the keys.