pooledSD | R Documentation |
The pooled estimated standard deviation is obtained by adding together
the residual sum of squares for each non-null element of
object
, dividing by the sum of the corresponding residual
degrees-of-freedom, and taking the square-root.
pooledSD(object)
object |
an object inheriting from class |
the pooled standard deviation for the non-null elements of
object
, with an attribute df
with the number of
degrees-of-freedom used in the estimation.
José Pinheiro and Douglas Bates bates@stat.wisc.edu
lmList
, lm
fm1 <- lmList(Orthodont)
pooledSD(fm1)
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