Over-the-counter estrogen products are available in pill form. Estrogen levels in women who are still menstruating drop after menopause. People might shop around when choosing an over-the-counter medication by comparing possible side effects.
Updated November 25, 2016. Classification is a data mining technique that assigns categories to a collection of data in order to aide in more accurate predictions and analysis. Also called sometimes called a Decision Tree, classification is one of several methods intended to make the analysis of very large data sets effective.
The classification and naming of organisms in an ordered system that is intended to indicate natural relationships, especially evolutionary relationships. 2. The science, laws, or principles of classification. 3. An ordered arrangement of groups or categories: a taxonomy of literary genres.