@DataScienceInR Connect the dots by introducing the 'concordance statistic': https://t.co/8p2a9uJMA8
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When comparing performance of the same logistic model in different populations, a higher c-statistic is to be expected for the population with greater variation in the explanatory variable, even if the odds ratio is transportable across populations. https:
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RT @ESteyerberg: @TPA_Debray @Richard_D_Riley 5.The link between calibration slope and discrimination can mathematically be defined. https:…
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@TPA_Debray @Richard_D_Riley 5.The link between calibration slope and discrimination can mathematically be defined. https://t.co/zxiFrIJ7Y3. Discrimination is determined by the slope and the case-mix in a validation setting: https://t.co/AKAz3PXhRN; https: