[WP34s] Regularized incomplete Beta function
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05-08-2014, 10:28 PM
Post: #39
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RE: [WP34s] Regularized incomplete Beta function
(05-08-2014 06:26 PM)Dieter Wrote: Which leads to the question if an upper limit in the dof value would make sense. For instance a maximum of 1000. This would apply to the Student as well as the ChiĀ² and F distribution. Given we're only promising accuracy for single precision, there are many orders of magnitude left before the risk of digit loss becomes significant. I don't think I'd want to impose a limit suitable for DP that restricts results in SP, likewise I don't want a computation that errors out in DP but not SP. For Student's-T and ChiĀ² distributions we could approximate with a normal for very high degrees of freedom I guess. I don't remember the asymptotic properties of the F distribution when one or both degrees of freedom get large. - Pauli |
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