Definition: Two or more words (such as part-time or high-speed) that act as a single idea to modify a noun (a part-time employee, a high-speed chase). Also called phrasal adjective or compound modifier. As a general rule, the words in a compound adjective are hyphenated when they come before a noun (a well-known actor) but not when they come after (The actor is well known). Also, compound adjectives formed with an adverb ending in-ly (such as rapidly changing) are usually not hyphenated.
Life on a Mediaeval Barony William Stearns Davis. ordinarily it is a mass of moving light and shade, of color. Journeys Through Bookland, Vol. 10 Charles Herbert Sylvester. ordinarily I would have laughed, hot ashes on the father and hot coals under the son, but now I sighed deeply.
Categorical variables may be further described as ordinal or nominal: 1  An ordinal variable is a categorical variable. Observations can take a value that can be logically ordered or ranked. 2  A nominal variable is a categorical variable. Observations can take a value that is not able to be organised in a logical sequence. Examples of nominal categorical variables include sex, business type, eye colour, religion and brand.