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arXiv · 1911.07754

Understanding parameter differences between analyses employing nested data subsets

Steven Gratton·Anthony Challinor
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Abstract

We provide an analytical argument for understanding the likely nature of parameter shifts between those coming from an analysis of a dataset and from a subset of that dataset, assuming differences are down to noise and any intrinsic variance alone. This gives us a measure against which we can interpret changes seen in parameters and make judgements about the coherency of the data and the suitability of a model in describing those data.

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Steven Gratton, Anthony Challinor. 2019-11-18. Understanding parameter differences between analyses employing nested data subsets. https://doi.org/10.1093/mnras%2Fstaa2996

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