Displaying 3 results from an estimated 3 matches for "timediet2".
2012 Jun 06
2
Main effects and interactions in mixed linear models
...Value St.error DF t-value p-value
Intercept 251.60 13.068 157 19.254 <.0001
Time 0.36 0.088 13 4.084 0.0001
Diet2 200.78 22.657 13 8.862 <.0001
Diet3 252.17 22.662 157 11.127 <.0001
TimeDiet2 0.60 0.155 157 3.871 0.0002
TimeDiet3 0.30 0.156 157 1.893 0.0602
As stated by Pinheiro, J. C. & Bates, D. M. (2000), the growth rate of diet
2 (TimeDiet2) differs significantly from diet 1. Allthoug could I from this
also say that body mass increa...
2008 Jan 22
1
anova function to test the difference between two coefficients in nlme package
Dear Dr. Bates, and R-help,
I've tried the anova function to test the difference between two
coefficients, as shown on page 225 of your book "Mixed Effects Models
in S and S-Plus (Statistics and Computing)".
When I type: anova( fm2BW.lme, L = c(TimeDiet2 = 1, TimeDiet3 = -1) )
I got the following error message:
Error: unexpected '=' in "anova( fm2BW.lme, L = c(Time:Diet2 ="
Could you tell me whether I miss anything?
> sessionInfo()
R version 2.6.0 (2007-10-03)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;L...
2012 Jun 07
0
[R-sig-ME] interpretation of main effect when interaction term being significant (ex. lme)
...? ? DF? ? t-value? p-value
> Intercept? ? 251.60? ? ? 13.068? 157? 19.254? ? <.0001
> Time? ? ? ? ? 0.36? ? ? ? ? 0.088? ? ? 13? ? 4.084? ? 0.0001
> Diet2? ? ? ? ? 200.78? ? ? 22.657? ? 13? ? 8.862? <.0001
> Diet3? ? ? ? ? 252.17? ? ? 22.662? ? 157? 11.127? <.0001
> TimeDiet2? 0.60? ? ? ? ? 0.155? ? 157? ? 3.871? ? ? 0.0002
> TimeDiet3? 0.30? ? ? ? ? 0.156? ? 157? ? 1.893? ? ? 0.0602
>
> As stated by Pinheiro, J. C. & Bates, D. M. (2000), the growth rate of
> diet 2 (TimeDiet2) differs significantly from diet 1. Although could I
> from this also...