Is it not true that the Shapiro Wilks test implemented in the package ctest requires the assumption that the population variance of the variable is known?
Is it also not true that the Lilliefors is not a test of normality as such, but is rather a correction of the p-value for the Kolmogorov Smirnov test? Thanks, Maurice Haynes National Institute of Child Health and Human Development Child and Family Research Section 6705 Rockledge Drive Bethesda, MD 20892 Voice: 301-496-8180 Fax: 301-496-2766 E-Mail: [EMAIL PROTECTED] | -----Original Message----- | From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] | Sent: Friday, October 17, 2003 3:33 PM | To: R HELP; Martina Pavlicova | Subject: Re: [R] Lilliefors Test | | | On 17 Oct 2003 at 13:59, Martina Pavlicova wrote: | | There is shapiro.test in package ctest, which have much better power | properties than Lillefors test. So there is no need to have | Lilliefors test in R, except for archeological interest. | | Kjetil Halvorsen | | > | > Hello everybody, | > | > I would like to perform a test for normality (without specifying the | > mean a variance) on the sample data (80 observations). I found that | > Lilliefors test is appropriate. Does anybody have it | programmed already, | > or is there a function for this test in R? | > | > Thank you very much, | > | > Martina Pavlicova | > | -------------------------------------------------------------- | ------------ | > Department of Statistics Office Phone: (614) 292-1567 | > 1958 Neil Avenue, 304E Cockins Hall FAX: (614) 292-2096 | > The Ohio State University E-mail: | [EMAIL PROTECTED] | > Columbus, OH 43210-1247 | www.stat.ohio-state.edu/~pavlicov | > | > ______________________________________________ | > [EMAIL PROTECTED] mailing list | > https://www.stat.math.ethz.ch/mailman/listinfo/r-help | | ______________________________________________ | [EMAIL PROTECTED] mailing list | https://www.stat.math.ethz.ch/mailman/listinfo/r-help | ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
