R-value

R-value or rvalue may refer to:

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
R₀ or R number, the basic reproduction number in epidemiology
In computer science, a pure value which cannot be assigned to
In statistics, the Pearson product-moment correlation coefficient, or simply correlation coefficient
In solid mechanics, the Lankford coefficient

See also[edit]

L-value (disambiguation)
R rating (disambiguation)
R-factor, a plasmid that codes for antibiotic resistance
ASHRAE refrigerant designations, commonly known as R-numbers

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