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2006 Nov 01
1
Compare linear regressios for significant differences of the slopes
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 also read in previous discussions in this list, that I can see if the slope +- stddev(slope) overlap, but this seems a long process for the huge number of comparisons. Therefore my question: is there a way to compare the slopes of lm() whi...
2002 Sep 14
0
p.s. regarding stripchart missing-data report (PR#2019)
...+comfort.numbers.sm+mss.m.score+mss.b.score) anova(lm4) #lm5 <- lm(deviat.logo.sm ~ stai.score+lot.score+educ+sex+minrisk.numbers.sm+QOL.numbers.sm #+worry.numbers.sm) #anova(lm5) #lm6 <- lm(deviat.logo.sm ~ educ+sex+age) #anova(lm6) #lm7 <- lm(deviat.logo.sm ~ stai.score) #anova(lm7) #lm8 <- lm(deviat.logo.sm ~ worry.numbers.sm) #anova(lm8) #lm9 <- lm(minrisk.numbers.sm ~ truste.score+mss.m.score+worry.numbers.sm+stai.score) #anova(lm9) lm10 <- lm(minrisk.numbers.sm ~ truste.score+mss.m.score+worry.numbers.sm+sex+educ+age) anova(lm10) lm11 <- lm(minrisk.numbers.sm ~...