search for: 136160

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2008 Sep 03
1
How to do Epps-Pulley test?
Hi there, Glad to meet you via internet. I have two questions: 1) Is there any implementation of Epps-Pulley test in R? What is it? 2) To test normality, which test is (more) suitable, Shapiro-Wilk test or Epps-Pulley test? Given a data set of thousands of samples, etc. 10000. Thanks Marck
2009 May 04
2
normality test for large a large dataset ?
Hello, Do you know a R implemented normality test like the shapiro test but more suitable for large data set ? Thanks, _________________________________________________________________ Découvrez toutes les possibilités de communication avec vos proches [[alternative HTML version deleted]]
2008 Dec 02
2
data retention and e-discovery rules
Hello All, I am in the United States where we have e-discovery rules. Some organizations have to retain data for a certain amount of time, others are required to have a data retention policy. This means that while it should probably be possible for a user to "delete" an email so they do not see it. The server needs to store it, possibly in a tree that mirrors the folder setup of
2008 Sep 03
2
Normality test
Hi, I am looking for a normality test in R to see if a vector of data I have can be assumed to be normally distributed and hence used in a linear regression. > help.search("normality test") suggests the Shapiro test, ?shapiro.test. Now maybe I am interpreting things incorrectly (as is usually the case), am I right in assuming that this is a composite test for normality, and hence a
2009 May 05
1
self organizing map advice for categorical data
...t ? To: Martial Sankar <martial100kar at hotmail.com>, rhelp <r-help at r-project.org> Message-ID: <B37C0A15B8FB3C468B5BC7EBC7DA14CC61D19A1765 at LP-EXMBVS10.CO.IHC.COM> Content-Type: text/plain; charset="iso-8859-1" See: http://finzi.psych.upenn.edu/R/Rhelp08/archive/136160.html But the issue really comes down to the fact that the questions: "exactly normal?", and "normal enough?" are 2 very different questions (with the difference becoming greater with increased sample size) and while the first is the easier to answer, the second is generally the...