Extrapolation: Difference between revisions
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# A straight-line estimation method where the estimated result lies beyond the range spanned by two or more known data points. | |||
A straight-line estimation method where the estimated result lies beyond the range spanned by two or more known data points. | # More generally, any estimation method where the estimated result lies beyond the range spanned by two or more known data points. (Not necessarily using straight-line methods of estimation.) | ||
More generally, any estimation method where the estimated result lies beyond the range spanned by two or more known data points. (Not necessarily using straight-line methods of estimation.) | |||
Extrapolation is generally a less reliable estimation method than Interpolation. | Extrapolation is generally a less reliable estimation method than Interpolation. | ||
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* [[Approximation]] | * [[Approximation]] | ||
* [[Interpolation]] | * [[Interpolation]] | ||
Revision as of 21:34, 13 August 2013
- A straight-line estimation method where the estimated result lies beyond the range spanned by two or more known data points.
- More generally, any estimation method where the estimated result lies beyond the range spanned by two or more known data points. (Not necessarily using straight-line methods of estimation.)
Extrapolation is generally a less reliable estimation method than Interpolation.
Extrapolation can be particularly unreliable when historical trends - for example historic growth rates - are projected into future periods for planning purposes.