Statistics Toolbox Release Notes |

Statistics Toolbox 3.0 Release Notes

**New Features**

This section introduces the new features and enhancements added in the Statistics Toolbox 3.0 since the Statistics Toolbox 2.2 (Release 11.0).

**Expanded Support for Linear Models**

Version 3.0 expands the Statistics Toolbox support for linear models in general, and analysis of variance in particular. The following are the major changes for the Statistics Toolbox 3.0:

- Improvements in one-way analysis of variance (
`anova1`

) - Higher-way analysis of variance (
`anovan`

) - Analysis of covariance (
`aoctool`

) - Multiple comparisons of means or other estimates (
`multcompare`

) - Multivariate analysis of variance (
`manova1`

,`manovacluster`

) - Graphics functions useful for examining data used for multivariate analysis of variance (
`gscatter`

,`gplotmatrix`

,`gname`

) - Response surface fitting with multiple responses (
`rstool`

) - Nonparametric analysis of variance (
`friedman`

,`kruskalwallis`

) - More flexible calculation of confidence bounds (
`polytool`

,`nlintool`

,`nlpredci`

)

In addition, the following changes do not involve linear models:

- Generalized linear models (
`glmfit`

,`glmval`

) - Robust regression (
`robustfit`

,`polytool`

) - Distribution testing and plotting (
`cdfplot`

,`lillietest`

,`kstest`

,`kstest2`

) - Fractional factorial design generation (
`fracfact`

) - Importing numeric and text data from tab-delimited files (
`tdfread`

) - More flexible handling of grouping variables (
`boxplot`

,`grpstats`

) - Multivariate t random number generation (
`mvtrnd`

) and improvements to other t distribution functions

Numerous other functions received enhancements, as described in the following sections:

- New Functions
- New Demos
- New Sample Data Files
- Updated Functions for ANOVA-Type Tables
- Other Updated Functions

Known Software and Documentation Problems | New Functions |