Path: csiph.com!feeder.erje.net!2.eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Daniele Futtorovic Newsgroups: comp.lang.java.programmer Subject: Re: How to identify outliers Date: Tue, 28 Nov 2017 17:33:28 +0100 Organization: A noiseless patient Spider Lines: 33 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Date: Tue, 28 Nov 2017 16:33:33 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="db9879cdf7deb0203cd054848c3f1d8a"; logging-data="28427"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX195ktxF2m+tBdhUX+x1q58W" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 In-Reply-To: X-Antivirus-Status: Clean Content-Language: en-GB X-Antivirus: AVG (VPS 171128-0, 11/28/2017), Outbound message Cancel-Lock: sha1:A7LiZmIlmuoJkSDzfx+Cm0jM03E= Xref: csiph.com comp.lang.java.programmer:37702 On 2017-11-28 16:13, Eric Sosman wrote: > On 11/28/2017 9:40 AM, Daniele Futtorovic wrote: >> Hi folks, >> >> I got a statistical problem, and due to a youth math trauma, I'd like a >> bit of help to solve it. >> >> I have a data series. Integer values, but that should be beside the >> point. I want to identify and eliminate "outliers" from this series. >> "Outliers" being values that are "too big" or "too small", in short, >> that are not congruent with the rest of the series. I am well aware that >> saying "outlier" begs the question, hence the quotes, but I can >> fine-tune the degree of outlying for my purposes later on. For the time >> being, I wonder if someone could outline some basic approaches I could >> take in the matter. > > > http://newton.newhaven.edu/sross/piercescriterion.pdf > >     If the table at the end of this (short) paper isn't suited to > your needs, I can also offer source code (in C) to adapted from > https://groups.google.com/d/topic/sci.math/Kypai3jqss8/discussion > to calculate the underlying distribution.  Drop me a line if you'd > like it. > Spiffy. Exactly what I was looking for. I'll go over it and get back to you if needed and you don't mind. Thanks a ton. -- DF.