pooledSD Extract Pooled Standard Deviation
Description
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.
Usage
pooledSD(object)
Arguments
object | an object inheriting from class |
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.
Author(s)
José Pinheiro and Douglas Bates [email protected]
See Also
Examples
fm1 <- lmList(Orthodont) pooledSD(fm1)
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Licensed under the GNU General Public License.