R-value: Difference between revisions

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Revision as of 11:10, 24 August 2014

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
value (computer science)#lrvalue, in computer science, a value considered independently of the "place" it is located
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
In the physical sciences, the gas constant is often denoted by the symbol R
In ophthalmic optics, r-value refers to the distance between the segment optical center and the segment top
Lankford coefficient

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-'''R-value''' can nao be correct:
+'''R-value''' can refer to:
 * Properties of materials:
 **[[R-value (insulation)]], the efficiency of insulation of a house