R-value: Difference between revisions
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HAHAHA quoted the R group eric craft likes men and same with johnny and mikey |
Revision as of 17:25, 3 November 2008
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