File:VR Une série chronologique anonyme.tif

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Français : L'idée pédagogique est d'illustrer combien une VR (en l'occurrence une série chronologique) est inutilisable si on ne dispose pas d'information pour l'accompagner : ici, on ne connaît par l'échelle de temps, ni la nature de la VR, et a fortiori les unités qui l'expriment. On peut certes effectuer des statistiques sur ces 98 données régulièrement espacées, on peut envisager une analyse variographique et même caler une dérive, mais sans avoir la moindre idée de ce que cela représente, donc de la signification et de la pertinence du résultat.
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Author Anton Dobrowsky

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current10:16, 12 August 2011Thumbnail for version as of 10:16, 12 August 20111,092 × 561 (12 KB)Anton Dobrowsky (talk | contribs)

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