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French to English translations [PRO]
Tech/Engineering - Mathematics & Statistics / probability distribution | | French term or phrase: Gamma avec décalage | This is a paper about the "loi de probabilité GEV" (Generalized Extreme Value probability distribution) used to model surgery times in an operating suite.
Nous souhaitons trouver un modèle de loi de probabilité théorique permettant de modéliser au mieux les durées des activités du bloc opératoire. Nous avons remarqué dans l’analyse des données (tableau 1), que les durées T0, T2, T3 et T4 pouvaient être toutes expliquées par notamment le type d’intervention et le chirurgien qui la réalise. Nous avons donc ajusté ces durées aux lois de probabilité théoriques suivantes : Loi Normale (À), Loi Log-Normale 3 paramètres (LN3), Loi Pearson III qui est une **Gamma avec décalage** (PIII), ainsi qu’à la famille des lois à valeurs extrêmes : GEV et deux de ses cas particuliers Weibull, Gumbel.
Would it make sense to translate décalage as 'skew' in this context? Hence 'the Pearson II distribution, which is a gamma distribution with skew'. Text mentioned skewness earlier when discussing a graphical comparison of GEV and standard normal probability densities (Nous remarquons quelques écarts relativement à la moyenne, le maximum et l’asymétrie (appelé Skewness). Or is it the more usual 'shift' or 'offset'? |
|   MoiraBKudoZ activityQuestions: 638 (none open) ( 17 closed without grading) Answers: 468
| Local time: 20:45
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| | skewed gamma distribution | Explanation:
From the wikipedia article below, Pearson type III is a skewed (asymetric) gamma distribution |
| Selected response from:
Philippe Etienne
Spain
Local time: 20:45
| Grading comment I checked with the author, who suggested "shifted gamma distribution", saying "In fact, the shift parameter has the effect of shifting the curve to the right or left by an amount. It is also called 'location parameter'." Gets support in a Pearson context so I assumed the client knew best! Thanks.
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