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I am no math whiz, so if the Poincare plot is a subset of a recurrence plot or something, maybe this article should be a section in that article, instead of its own article. Rhetth ( talk) 17:15, 7 February 2009 (UTC)
You're just writing nonsense. The recurrence plot of the Southern Oscillation that you're displaying here is clearly not a plot of F(n) on the X axis vs. F(n + 1) on the Y axis. If you think that's what it is, you're not paying attention at all. Michael Hardy ( talk) 23:14, 31 August 2009 (UTC)
The glaring deficiency of this article in its present form is that it doesn't even attempt to give the slightest hint at the answer to the question: What is a Poincaré plot?
Nor does it attempt to say what "R-R" means, while using that notation repeatedly and prominently. Michael Hardy ( talk) 18:42, 9 February 2009 (UTC)
Well, obviously this is not synonymous with "scatter plot". Michael Hardy ( talk) 22:32, 10 February 2009 (UTC)
I wonder if this should be a part of Wikiproject Statistics, or if it should also be Wikiproject Mathematics? Rhetth ( talk) 18:01, 15 August 2009 (UTC)
The article states "An increase in the variability of heart rate suggests pathological conditions" but the linked study supports the opposite conclusion, I believe. Other articles on Wikipedia say that decrease of variability is associated with various poor health outcomes, so this section seems inconsistent with other sources. Perhaps an expert could update that section. — Preceding unsigned comment added by 203.97.14.10 ( talk) 02:16, 22 September 2016 (UTC)
The first reference is a broken link, this is the closest alternative I could find. Likely due to a reshuffle of Yale's website. In addition I was taught that Poincaré plots were the name for bifurcation diagrams, but it seems like they are another thing completely. - Emerald92 ( talk) 09:37, 17 October 2017 (UTC)