223x

Depending on your specific field, "223x" and "proper features" may refer to:

: Defining a "feature class" which represents a collection of geographic objects with the same geometry type (point, line, or polygon) and the same set of attributes . Depending on your specific field, "223x" and "proper

: It should ideally not be redundant with other features to avoid multicollinearity. Depending on your specific field