Articles | Volume 12, issue 5
https://doi.org/10.5194/cp-12-1215-2016
https://doi.org/10.5194/cp-12-1215-2016
Technical note
 | 
24 May 2016
Technical note |  | 24 May 2016

Technical note: Estimating unbiased transfer-function performances in spatially structured environments

Mathias Trachsel and Richard J. Telford

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Short summary
In spatially structured environments, conventional cross validation results in over-optimistic transfer function performance estimates. H-block cross validation, where all samples within h kilometres of the test samples are omitted is a method for obtaining unbiased transfer function performance estimates. We assess three methods for determining the optimal h using simulated data and published transfer functions. Some transfer functions perform notably worse when h-block cross validation is used.