SLICE: F Test with Slice

In sasLM: 'SAS' Linear Model

F Test with Slice

Description

Performs an F test with a given slice term.

Usage

  SLICE(Formula, Data, Term, By)

Arguments

Formula	a conventional formula for a linear model
Data	a data.frame to be analyzed
Term	a factor name (not an interaction) to calculate the sum of squares and do an F test with least square means
By	a factor name to be used for slicing

Details

It performs an F test with a given slice term. It is similar to the SLICE option of SAS PROC GLM.

Value

Returns the sum of squares and its F value and p-value. Row names are the levels of the slice term.

Df	degrees of freedom
Sum Sq	sum of squares for the set of contrasts
Mean Sq	mean square
F value	F value for the F distribution
Pr(>F)	probability of a larger F value

Author(s)

Kyun-Seop Bae [e-mail]

Examples

  SLICE(uptake ~ Type*Treatment, CO2, "Type", "Treatment") 
  SLICE(uptake ~ Type*Treatment, CO2, "Treatment", "Type") 

sasLM documentation built on June 15, 2026, 9:07 a.m.