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Article #59[urgent]: random sample with predefined correlation
From: Pedro Cardoso
Date: Sun, 02 Oct 2005 22:01
Date: Sun, 02 Oct 2005 22:01
17 lines
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1544 bytes
Hello all, I have this problem:
I have a vector x of values and I would like "randomly" produce other
vector y,
such that correlation(x,y) is equal to some predefined value.
example:
x=(1, 2, 1, 2, 3, 4, 5, 1, 8)
y=(?, ?; ?, ?, ?, ?, ?, ?, ?)
correlation(x,y)=0.7
Can anyone help?
best regards,
Pedro.
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X-Google-Thread: 10468c,d6603d800ee0afd9,start X-Google-Thread: fbb77,d6603d800ee0afd9,start X-Google-Thread: 107665,d6603d800ee0afd9,start X-Google-Attributes: gid10468c,gidfbb77,gid107665,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!border1.nntp.dca.giganews.com!border2.nntp.dca.giganews.com!nntp.giganews.com!novia!newspump.monmouth.com!newspeer.monmouth.com!newsswitch.lcs.mit.edu!bloom-beacon.mit.edu!newshub.ip.pt!brown.telepac.pt!not-for-mail From: "Pedro Cardoso" <pjscardoso@netcabo.pt> Newsgroups: alive.statistics,alt.sci.math.statistics.prediction,pt.ciencia.geral Subject: [urgent]: random sample with predefined correlation Date: Sun, 2 Oct 2005 23:01:41 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 X-RFC2646: Format=Flowed; Original Lines: 21 Message-ID: <434058d2$0$17828$a729d347@news.telepac.pt> Organization: Telepac II - Comunicacoes Interactivas, SA NNTP-Posting-Host: 85.138.12.20 X-Trace: 1128290514 news.telepac.pt 17828 85.138.12.20 X-Complaints-To: abuse@mail.telepac.pt