User talk:Coffee2theorems

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Welcome!

Hello, Coffee2theorems, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful:

I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or place {{helpme}} on your talk page and someone will show up shortly to answer your questions. Again, welcome!  --MarkSweep (call me collect) 17:38, 23 July 2006 (UTC)

[edit] Request for edit summary

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Filling in the edit summary field greatly helps your fellow contributors in understanding what you changed, so please always fill in the edit summary field, especially for big edits or when you are making subtle but important changes, like changing dates or numbers. Thank you. – Oleg Alexandrov (talk) 17:56, 19 August 2006 (UTC)

[edit] probit graph

Hi, I propose updating the probit graph. The probit is a function with domain [0,1] and range on the real line. The axies should be labeled as such. Were this an article on statistics (which it isn't it's an article on the function) your labels would be great. Pdbailey 00:51, 4 October 2006 (UTC)

I removed labels altogether, making it a simple plot of \Phi^{-1}: [0;1] \to (-\infty;+\infty) \! without any units. The graph in logit doesn't have any labels either. -- Coffee2theorems | Talk 15:00, 12 January 2007 (UTC)
Okay, that's fine, but here's a question for you. If zero is in the domain, what value does it take on in the range? Pdbailey 19:35, 7 April 2007 (UTC)
Indeed the domain isn't really [0,1] but (0,1) unless you're willing to say that it maps 0 and 1 to negative and positive infinities using extended reals, but what I meant was really that there are labels "0.0" and "1.0" in the plot instead of "0.0001" and "0.9999". I thought you were just poking a bit of fun at my sloppy notation here and decided a response wasn't necessary, but then I just noticed that the probit article at the moment says that the range of the sigmoid function is [0,1] (!). I'll change that to (0,1).. -- Coffee2theorems (talk) 15:09, 1 May 2008 (UTC)