R-value

R-value can refer to:

Properties of materials:
- R-value (insulation), the efficiency of insulation
- R-value (soils), stability of soils and aggregates for pavement construction

r-value, in computer science, a value that has an address in a computer language

R-factor (crystallography), a measure of the agreement between the crystallographic model and the diffraction data

In statistics, r (or r value) refers to the Pearson product-moment correlation coefficient, often called simply correlation coefficient

This disambiguation page lists articles associated with the title R-value.
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HAHAHA quoted the R group eric craft likes men and same with johnny and mikey