downweightv.
/ˈdaʊnˌweɪt/, U.S. /ˈdaʊnˌweɪt/ Statistics.
transitive. To reduce the influence of (a data point) in an instance of statistical analysis.
ΚΠ
1964 Jrnl. Sound & Vibration 1 470 This has the effect of upweighting the loudness contributions in rising spectra relative to falling ones as compared with Stevens' method which downweights all contributions except the largest irrespective of spectral shape.
1989 N.Z. Jrnl. Geol. & Geophysics 116/2 The vertical data need to be downweighted because of the probable significant departures from model predictions.
2014 L. Z. Garamszegi Mod. Phylogenetic Compar. Methods vii. 175 We may want to downweight data points with very low sample sizes.
This entry has been updated (OED Third Edition, December 2018; most recently modified version published online March 2022).
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