Hello,
I'm Roberta.
I'm working with R since some months, but I still have some problems.
At the moment I'm using the library nlme, in particular the function
lme and I have a question.
Just as an example I write the code:
library(nlme)
library(SASmixed)
data(Mississippi)
m1 <- lme(y ~ 1, data = Mississippi, random = ~ 1|influent)
summary(m1)
and I obtain these results:
Linear mixed-effects model fit by REML
Data: Mississippi
AIC BIC logLik
258.3511 263.1017 -126.1756
Random effects:
Formula: ~1 | influent
(Intercept) Residual
StdDev: 7.957598 6.531317
Fixed effects: y ~ 1
Value Std.Error DF t-value p-value
(Intercept) 21.22312 3.429034 31 6.189241 0
Standardized Within-Group Residuals:
Min Q1 Med Q3 Max
-1.91443594 -0.53645956 -0.03217348 0.83713515 1.95823685
Number of Observations: 37
Number of Groups: 6
Now, I would like to recall the parameter "Random effects StdDev
(Intercept)", equal to 7.957598, but I'm not able to find its "R-name".
I read the Documentation on R web site and I found the "name" of other
parameters (such as ...$coeff$fixed and ...$sigma) but I really need that
one.
Someone can help me, please?
Thanks in advance,
best regards,
Roberta Varriale
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