Displaying 3 results from an estimated 3 matches for "fm2bw".
Did you mean:
fm2b
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...
2012 May 02
3
Consulta gráfica
Hola,
Por favor, ¿podríais indicarme qué recursos (librerías o ideas) pueden resultar de utilidad para crear un gráfico del estilo del de la figura 3.8 del siguiente link?
http://www.tsc.uvigo.es/BIO/Bioing/ChrLDoc3.html#3.5
Actualmente estoy utilizando funciones muy básicas y la verdad es que no me encuentro muy satisfecha con el resultado.
Muchas gracias.
Eva
[[alternative HTML
2008 Jan 26
0
how to use anova() to test the sum of coefficients in nlme package
Dear R-help,
In nlme package, anova () can be used to test the difference between
two coefficients as shown on page 225
of "Mixed Effects Models in S and S-Plus":
anova(fm2BW.lme, L = c("Time:Diet2" = 1, "Time:Diet3" = -1))
Now my question is instead of test the difference between two
coefficients, can I use anova to test the significance of the sum of
two coefficients, like
anova(fm2BW.lme, L = c("Time:Diet2" = 1, "Time:Diet3"...