R-value: Difference between revisions
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'''R-value''' can refer to: |
'''R-value''' can refer to: |
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* Properties of materials: |
* Properties of materials: |
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**[[R-value (insulation)]], the efficiency of insulation |
**[[R-value (insulation)]], the efficiency of insulation of a house |
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**[[R-value (soils)]], stability of soils and aggregates for pavement construction |
**[[R-value (soils)]], stability of soils and aggregates for pavement construction |
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* [[value (computer science)|r-value]], in computer science, a value that does not have an address in a computer language |
* [[value (computer science)|r-value]], in computer science, a value that does not have an address in a computer language |
Revision as of 06:36, 7 November 2010
R-value can refer to:
- Properties of materials:
- R-value (insulation), the efficiency of insulation of a house
- R-value (soils), stability of soils and aggregates for pavement construction
- r-value, in computer science, a value that does not have 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