aov2: ANOVA with Type II SS

In sasLM: 'SAS' Linear Model

ANOVA with Type II SS

Description

ANOVA with Type II SS.

Usage

  aov2(Formula, Data, BETA=FALSE, Resid=FALSE)

Arguments

Formula	a conventional formula for a linear model.
Data	a data.frame to be analyzed
BETA	if TRUE, coefficients (parameters) of REG will be returned. This is equivalent to the SOLUTION option of SAS PROC GLM.
Resid	if TRUE, fitted values (y hat) and residuals will be returned

Details

It performs the core function of SAS PROC GLM, and returns Type II SS. This also accepts continuous independent variables.

Value

The result table is comparable to that of SAS PROC ANOVA.

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

The next returns are optional.

Parameter	Parameter table with standard error, t value, p value. TRUE is 1, and FALSE is 0 in the Estimable column. This is returned only with the BETA=TRUE option.
Fitted	Fitted values or y hat. This is returned only with the Resid=TRUE option.
Residual	Weighted residuals. This is returned only with the Resid=TRUE option.

Author(s)

Kyun-Seop Bae [e-mail]

Examples

  aov2(uptake ~ Plant + Type + Treatment + conc, CO2)
  aov2(uptake ~ Plant + Type + Treatment + conc, CO2, BETA=TRUE)
  aov2(uptake ~ Plant + Type + Treatment + conc, CO2, Resid=TRUE)
  aov2(uptake ~ Plant + Type + Treatment + conc, CO2, BETA=TRUE, Resid=TRUE)
  aov2(uptake ~ Type, CO2)
  aov2(uptake ~ Type - 1, CO2)

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