[R] Coding methods for factors

Is there a way in R to control how factors are coded? It looks like reference cell coding is used by default. Is there a way to get effects coding? (I could just set up the factor dummy variables as I wish and use lm, but I'm wondering if there is a better way.) Thanks, --Paul

Re: [R] Brown-Forsythe F* Statistic

t; c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K > (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 > ~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 > > > -- Paul Lynch Aquilent, Inc. National Library of Medicine (

[R] Brown-Forsythe F* Statistic

e for calculating the Brown-Forsythe F*? 2) If not, what do people use for checking the results of a (one-way) ANOVA when there is non-normality as well as non-constant variances? Thanks, --Paul -- Paul Lynch Aquilent, Inc. National Library of Medicine (Contr

[R] Making a data frame into a factor ?

e the factor and the vector of values. Thanks in advance, -- Paul Lynch Aquilent, Inc. National Library of Medicine (Contractor) __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

[R] Formula for whether hat value is influential?

I was wondering if someone might be able to tell me what formula R's influence.measures function uses for determining whether the hat value it computes is influential (i.e., the true/false value in the "hat" column of the returned is.inf data frame). The reason I'm asking is that its results disag

[R] md5 hash is wrong for 2.6.2 (Windows)

d fix it?) Thanks, --Paul p.s. Given that two CRAN servers have the bad value, I'm guessing it's safe to install. It installed okay is seems to be running fine. -- Paul Lynch Aquilent, Inc. National Library of Medicine (Contractor)