Analysis of Two-Way Tables
ANOVA summary for a two-way table, including Tukey Additivity Test
Convert a twoway object to a data frame This function converts a `"two...
Create an initial twoway object representing the data before fitting
Find the nearest ladder-of-powers representation of a power transforma...
Fit a two-way table using row and column means
Fit a two-way table using median polish
Plot methods for two-way tables
Print method for two-way tables
Extract residuals from a twoway object
Reshape a data.frame or matrix to a long data.frame
Formula method for twoway analysis using a dataset in long format
Analysis of a two-way table with one observation per cell
Carries out analyses of two-way tables with one observation per cell, together with graphical displays for an additive fit and a diagnostic plot for removable 'non-additivity' via a power transformation of the response. It implements Tukey's Exploratory Data Analysis (1973) <ISBN: 978-0201076165> methods, including a 1-degree-of-freedom test for row*column 'non-additivity', linear in the row and column effects.