What about Hat Matrix ? Mahalanobis distance ? Yves
"Voltolini" <[EMAIL PROTECTED]> wrote in message 00f301c1be68$13413000$fde9e3c8@oemcomputer">news:00f301c1be68$13413000$fde9e3c8@oemcomputer... > Hi, > > I would like to know if methods for detecting outliers > using interquartil ranges are indicated for data with > NON normal distribution. > > The software "Statistica" presents this method: > data point value > UBV + o.c.*(UBV - LBV) > data point value < LBV - o.c.*(UBV - LBV) > > where: UBV is the 75th percentile) and LBV is the 25th percentile). o.c. is > the outlier coefficient. > > In the biological world many data are not normally distributed and tests > like Rosner, Dixon and Grubbs (if I am wright ! ) are good just for normally > distributed data. > > > Does anyone can help me ? > > > Thanks...... > > > > _____________________________________________________ > Prof. J. C. Voltolini > Grupo de Estudos em Ecologia de Mamiferos - ECOMAM > Universidade de Taubate - Depto. Biologia > Praca Marcellino Monteiro 63, Bom Conselho, > Taubate, SP - BRASIL. 12030-010 > > TEL: 0XX12-2254165 (lab.), 2254277 (depto.) > FAX: 0XX12-2322947 > E-Mail: [EMAIL PROTECTED] > http://www.mundobio.rg3.net/ > ____________________________________________________ > > > > ================================================================= > Instructions for joining and leaving this list, remarks about the > problem of INAPPROPRIATE MESSAGES, and archives are available at > http://jse.stat.ncsu.edu/ > ================================================================= ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =================================================================
