OpenLegislation

Division 1.2.5 F1

United Kingdom

Original text. Later amendments are not shown.

‘Coefficient of determination’ ( r 2 ) means:

r 2 = 1 − ∑ n i = 1 y i − a 0 − a 1 × x i 2 ∑ n i = 1 y i − y – 2

where:

a 0

  • is the axis intercept of the linear regression line

    • a 1

  • is the slope of the linear regression line

    • x i

  • is the measured reference value

    • y i

  • is the measured value of the parameter to be verified

    • y –

  • is the mean value of the parameter to be verified

    • n

  • is the number of values

    • Annotations

    Textual amendments

    F1

    Inserted by Commission Regulation (EU) 2016/427 of 10 March 2016 amending Regulation (EC) No 692/2008 as regards emissions from light passenger and commercial vehicles (Euro 6) (Text with EEA relevance).