R-value
R-value or rvalue may refer to:
- In computer science, a value considered independently of its storage location
- R-value (insulation) in building engineering, the efficiency of insulation of a house
- R-value (soils) in geotechnical engineering, the stability of soils and aggregates for pavement construction
- R-factor (crystallography), a measure of the agreement between the crystallographic model and the diffraction data
- In statistics, the Pearson product-moment correlation coefficient, or simply correlation coefficient
- In solid mechanics, the Lankford coefficient
- In epidemiology, the Basic reproduction number, the rate at which an infection is thought to spread
See also
- R rating (disambiguation)
- R0, the basic reproduction number in infectiology
- L-value (disambiguation)