Re: [R] Compare linear regressios for significant differences of the slopes

2006-11-03 Thread Rainer M Krug
Dieter Menne wrote: Rainer M Krug wrote: I have (8 measures * 96 groups) = 768 datasets for which I did linear regressions using lm(). Sorry for my (probably incorrect) usage of group and measure. Here a (probably better) description of my design: I ran 96 different simulations (spread of a

Re: [R] Compare linear regressios for significant differences of the slopes

2006-11-02 Thread Rainer M Krug
Hi I haven't received any ideas yet - I just wanted to confirm if this is a simple question? Should I follow the idea of checking if slope +- stddev slope overlap? Thanks, Rainer Rainer M Krug wrote: Hi I have (8 measures * 96 groups) = 768 datasets for which I did linear regressions

[R] Compare linear regressios for significant differences of the slopes

2006-11-01 Thread Rainer M Krug
Hi I have (8 measures * 96 groups) = 768 datasets for which I did linear regressions using lm(). Now I want to compare the slopes for each of the 8 measures in each of the 96 groups. As I understand , I can not use anova(lm1, ..., lm8) as the lm1 ... lm8 are based on different datasets. I