search for: multistrata

Hi, I have two unequal patient groups belonging to different geographic locations, treated by different drug regimens and their survival data. N1=150 and N2=60 In each group of data there are three strata for one independent variable- treatment status (2=two drugs administered, 1=only one conventionally used drug administered, 0=no drug administered), dead or not and months to death. In order to

...ecay class, suspension). With normal response y one can use R to get the between and within site information using aov(y~u+v+Error(site)) where u and v are independent variables. Problem is we have a binary response (burn or not), so need to use glm. I need to know if it is possible to use glm with multistrata and if so how. [[alternative HTML version deleted]]

Hi, I have encountered the following error, when using 'aov', which I think has something to do with the length of my call to 'aov', and I cannot understand why: Error in model.frame.default(formula = Y2 ~ P2 + P2:AAAAAAAA + P2:B2 + : object is not a matrix The error occurs when I run the first sequence below, but not the second. The two sequences are based on the SAME

Hi all I'm trying to complete a textbook example originally designed for SPSS in R, and I therefore need to find out how to compute an unbalanced ANOVA in R. I did a search on the mailinglist archives an found a post by Prof. Ripley saying one should use the lme function for (among other things) unbalanced ANOVAs, but I have not been able to use this object. My code gives me an error.. Why

...X", ylab="Y") now works as expected. o plot.formula(ask=FALSE) now works. (PR#1923) o as.list(<logical>) now works properly. (PR#1926). o The residual SSq printed from an aov() fit with weights is now the weighted SSq. (PR#1930) o aov() could still fail on multistrata models with very long Error formulae. o try() could fail in BATCH use due to use of fflush(stdin). Only seen on Solaris. (PR#1934) o title(main=list("main")) printed garbage, as did similar calls using quote() instead of expression() for plotmath. (PR#1939) o deparse() dro...

...X", ylab="Y") now works as expected. o plot.formula(ask=FALSE) now works. (PR#1923) o as.list(<logical>) now works properly. (PR#1926). o The residual SSq printed from an aov() fit with weights is now the weighted SSq. (PR#1930) o aov() could still fail on multistrata models with very long Error formulae. o try() could fail in BATCH use due to use of fflush(stdin). Only seen on Solaris. (PR#1934) o title(main=list("main")) printed garbage, as did similar calls using quote() instead of expression() for plotmath. (PR#1939) o deparse() dro...