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/E *********** REPLY SEPARATOR *********** On 9/3/2004 at 2:20 PM michael watson (IAH-C) wrote: >>>OK I better clarify what I mean as it appears it may not be a standard >>>test. >>> >>>The pearson correlation coefficient, in laymans terms, uses the shape of >>>a curve around that curve's average to compare two curves. The standard >>>correlation coefficient measures the shape of a curve around zero, and >>>uses that to compare the two curves. >>> >>>Therefore a measure that starts at 1 and increases away from zero, and a >>>measure that starts at -4 and increases towards zero, will be deamed >>>similar via pearson's correlation coefficient, and dissimilar via the >>>standard correlation coefficient. This is useful when "increase away >>>from zero" is very different behaviour from "increase towards zero". >>> >>>There are some descriptions here: >>> >>>http://ccgb.umn.edu/support/software/gspring/HelpPages/GSUM-120.html >>>http://www.optimaldesign.com/AMHelp/HowTo/HowToChooseClustParam.htm >>> >>>-----Original Message----- >>>From: Stefan Drees [mailto:[EMAIL PROTECTED] >>>Sent: 03 September 2004 14:03 >>>To: [EMAIL PROTECTED] >>>Cc: michael watson (IAH-C); Stefan Drees >>>Subject: Re: [R] Standard correlation >>> >>> >>>On Fri, Sep 03, 2004 at 01:30:36PM +0100 - a wonderful day >>> - michael watson (IAH-C) wrote: >>>> Is there a function for computing the standard correlation >>>> coefficient (not pearson) in R? >>>help (cor) yields the following in my R 1.9.1 installation: >>>""" >>>... >>>cor(x, y = NULL, use = "all.obs", >>> method = c("pearson", "kendall", "spearman")) >>>... >>>""" >>> >>>HTH, >>>Stefan. >>>-- >>>.o. e-mail: [EMAIL PROTECTED], web: www.sdrees.org, +49 700 SDREESDE ..o >>>fingerprint = 516C C4EF 712A B26F 15C9 C7B7 5651 6964 D508 1B56 ooo >>>stefan drees - consulting and lecturing - problems to tasks >>> >>>______________________________________________ >>>[EMAIL PROTECTED] mailing list >>>https://stat.ethz.ch/mailman/listinfo/r-help >>>PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Dipl. bio-chem. Witold Eryk Wolski @ MPI-Moleculare Genetic Ihnestrasse 63-73 14195 Berlin 'v' tel: 0049-30-83875219 / \ mail: [EMAIL PROTECTED] ---W-W---- http://www.molgen.mpg.de/~wolski [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
