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Timeline for Problematic Residual plot

Current License: CC BY-SA 4.0

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Dec 29, 2022 at 17:10 comment added Nick Cox Cf. "perhaps repeated many times". In fact, virtually any other display of the two residual distributions, say a histogram or quantile plot, will reveal more than this plot.
Dec 29, 2022 at 17:08 comment added whuber +1. But there's more to the story: the OP's data are discrete and thereby the plotting points mask one another. These plots are best rendered with a little jittering and some semi-transparency to reveal the distributions of the residuals.
Dec 29, 2022 at 16:44 history edited Nick Cox CC BY-SA 4.0
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Dec 29, 2022 at 16:39 history answered Nick Cox CC BY-SA 4.0