Arithmetic mean and summary statistics

Geometric mean and summary statistics

Reference intervals

Geometric mean and summary statistics

Reference intervals

**How to cite this page:**

A version of this tool is included in the R package epiR . So please cite this page as follows:

Stevenson M, Nunes T, Heuer C, Marshall J, Sanchez J, Thornton R, Reiczigel J, Robison-Cox J, Sebastiani P, Solymos P, Yoshida K, Firestone S. (2015) epiR: An R package for the analysis of epidemiological data. R package version 0.9-69.

**References:**

Friedrichs, K., Barnhart, K., Blanco, J., Freeman, K., Harr, K., Szladovits, B., & Walton, R. (2012). ASVCP Quality Assurance and Laboratory Standards Committee (QALS) Guidelines for the determination of reference intervals in veterinary species and other related topics (Table 2).

Horn, P. S., Pesce, A. J., & Copeland, B. E. (1998). A robust approach to reference interval estimation and evaluation. Clinical Chemistry, 44(3), 622-631.