pdiff {pda} | R Documentation |
Takes the fit of a linear model, extracts the least squares means and their standard errors, and the residual DF, and constructs the p-values for all pairwise comparisons.
pdiff(fit, lsm=lsmean(fit), pred, se, rdf=df.resid(fit))
fit |
object from linear model fit |
lsm |
least squares means object from lsmean |
pred |
outer difference of least squares means |
se |
SE for differences in pred |
rdf |
residual degrees of freedom from model fit |
Square matrix of size length( pred )
sorted from largest to
smallest pred
with p-values as
entries. Diagonal entries are all 1. Row and column names are levels of pred
.
Brian S. Yandell
lsmean
, pletter
, pvalue.ellipse
example( Oocyte ) pdiff( Oocyte.fit )