You must log in to edit PetroWiki. Help with editing
Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. More information
Message: PetroWiki content is moving to OnePetro! Please note that all projects need to be complete by November 1, 2024, to ensure a smooth transition. Online editing will be turned off on this date.
Glossary:Biased estimates
Estimates for which there is a correlation between the standardized errors and the estimated values (see Cross-validation ) or for which a histogram of the standardized errors is skewed. Either condition suggests a bias in the estimates, so that one area of the map may always show estimates that are higher (or lower) than expected.