This is a patch release to cover changes made to the ggplot2 package.

BUG FIXES

- Fixed simple_slopes() to cover cases of contrasts that have no column names.

This is a patch release covering changes necessary to prepare for submission to CRAN. Most changes will not affect current code; however, be aware of the following changes:

Many of the functions have had the dots parameter (…) added, to ensure consistency with the S3 generic function. However, any extra parameters will simply be ignored. Thus, this does not impact any user code.

Package functions which implement the following generic methods have had their first parameter renamed, again for consistency with the S3 generic: summary, print, coef, residuals, fitted. In most cases, this will not impact user code, unless you have used named parameters, e.g.,

`summary(model=results)`

should now be`summary(object=results)`

.

BUG FIXES

Fixed bug when using

`build_model`

but only providing a single model to be run.Created special print method for

`simple_slopes`

so that “lme4” models print correctly.Fixed bug (correctly this time) with

`simple_slopes`

using incorrect contrasts for factor variables.

BUG FIXES

- Fixed bug with
`simple_slopes`

using incorrect contrasts for factor variables. Resolves Issue #2.

`build_model`

now drops missing data based on the variables included in the final model, so that all models are tested on the same data.The

`titles`

parameter of`graph_model`

has been changed to`labels`

, and now takes a named list rather than relying on the index of a character vector.`graph_model`

function extended to include`lme`

and`merMod`

models.

NEW FEATURES

`beta`

function extended to include`lme`

and`merMod`

models.`build_model`

function extended to include`aov`

and`glm`

models.`cell_means`

function extended to include`glm`

models.`graph_model`

function extended to include`aov`

and`glm`

models.`sig_regions`

function extended to include`glm`

models.

MAJOR CHANGES

- Changed
`block_lm`

function name to`build_model`

.

NEW FEATURES

Added examples to documentation for all functions.

`beta`

function extended to include`glm`

models.`cell_means`

function extended to include`aov`

models.`ICC`

function extended to include`merMod`

models (from “lme4” package).`simple_slopes`

function extended to include`aov`

,`glm`

,`lme`

, and`merMod`

models.`simple_slopes`

now includes`print`

function to include significance stars.

BUG FIXES

- Fixed bug with passing variables names to
`build_model`

,`cell_means`

, and`graph_model`

. Resolves Issue #1.

NEW FEATURES

`beta`

function calculates standardized beta coefficients.`block_lm`

function allows variables to be added to a series of regression models sequentially (similar to SPSS).`ICC`

function calculates the intra-class correlation for a multi-level model (lme only at this point).`cell_means`

function calculates the estimated means for a fitted model.`graph_model`

function graphs interactions at +/- 1 SD (uses ggplot2 package).`simple_slopes`

function calculates the simple effects of an interaction.`sig_regions`

function calculate the Johnson-Neyman regions of significance for an interaction.