Talk:Logistic function
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Would be neat to have a 1-2 sentence explanation in laymen's terms what is it good for, and why does it fit better or worse a task than other, comparable things/methods/whatevers. See standard deviation for example, where the section Interpretation and application explains in simple terms what is that good for. (Many statistical terms could use such an "interpretation"... most of them mathematically defines the terms but forget to explain it to shoemakers and milkmen. :-) ) --grin ✎ 07:42, 2004 May 6 (UTC)
I agree. As someone researching the diffusion of innovations, which follows an s-curve, I'd like to know what an s-curve really means. I'm not a shoemaker or milkman, but I would like to have a better understanding of what an s-curve is. --Westendgirl 22:59, 3 Jan 2005 (UTC)
- This is largely already there; it's just not explicitly labeled as the answer to that question. I'll return to this article soon. Michael Hardy 01:04, 4 Jan 2005 (UTC)
- It might be there, but I don't have the math background to understand it. :) My husband, a mathematician, assures me that all I need to know (for my purposes) is that an s-curve is a curve shaped like an S, as a result of data that has been plotted. I recognize that I don't need to understand the formula, but is this s-shape all I (and other lay readers) need to know? --Westendgirl 05:37, 4 Jan 2005 (UTC)
- Done.Ancheta Wis 10:29, 8 Apr 2005 (UTC) Cleanup note removed
Standard formula needed
The three pages sigmoid, sigmoid function, and logistic curve seemed rather confusing for readers. So I have moved all info on the "standard" logistic curve 1/(1+exp(-t)) to sigmoid function, and kept here only the stuff about more general logistic curves that are shifted and scaled copied of the latter. I have provided a general formula for these curves, but I am not familiar with this field so I do not know whether the formula and parameters that I picked are OK. If there is a "canonical" formula, would someone please provide it?
Also the plot shows the standard sigmoid function; here one should have a plot of the more general logistic curve, shifted and scaled.
Jorge Stolfi 07:37, 2 Jul 2004 (UTC)
Logistic curve vs. logistic function
Argh.. I moved logistic curve to logistic function because it seemed more logical, but now I see that most users call it "curve". Profuse apologies. If you can, could you please reverse the move, making logistic function into a redirect? Thanks...
Jorge Stolfi 08:01, 2 Jul 2004 (UTC)