pooledSD

0th

Percentile

Extract pooled standard deviation

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.

Keywords
models
Usage
pooledSD(object)
Arguments
object
an object inheriting from class lmList.
Value

  • 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.

See Also

lmList, lm

Aliases
  • pooledSD
Examples
pooledSD(lmList(weight ~ Time | Chick, do.call("data.frame", ChickWeight)))
Documentation reproduced from package lme4, version 0.99875-8, License: GPL version 2 or later

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