bwss.matrix: Between and within sums of squares for matrix
Description
Sums of squares between and within the columns of a matrix. Allows for missing values. This function is called by the anova
method for MAList
objects.Value
A list with components
- bss
- sums of squares between the column means.
- wss
- sums of squares within the column means.
- bdf
- degrees of freedom corresponding to
bss
. - wdf
- degrees of freedom corresponding to
wss
.
Details
This is equivalent to a one-way analysis of variance where the columns of the matrix are the groups.
If x
is a matrix then bwss.matrix(x)
is the same as bwss(x,col(x))
except for speed of execution.