Statistics Toolbox 7.2

Latest Features

Version 7.2

Released: 04 Sep 2009
 

Version 7.2, part of Release 2009b, includes the following enhancements:

• New parallel execution support for the bootstrp, bootci, crossval, and jackknife functions, and the TreeBagger class
• Conversion between tall and wide dataset arrays
• New capability in nlmefit function for monitoring or cancelling calculations
• New ability to read and write SAS® Transport (.xpt) files

See the Release Notes for details.

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Version 7.1

Released: 06 Mar 2009
 

Version 7.1, part of Release 2009a, includes the following enhancements:

• New Naïve Bayes classifier for data sets that contain many predictors or features, with support for normal, kernel, multinomial, and multivariate multinomial distributions
• Ensemble methods for bagging classification and regression trees, including Breiman’s random feature selection method
• Receiver Operating Characteristic (ROC) and other performance curves for evaluating classifiers
• New probability distribution object that provides a consistent interface for working with probability distributions
• Enhanced dataset array, including inner and outer joins and the ability to export a dataset array to an Excel® file

See the Release Notes for details.

Version 7.0

Released: 06 Mar 2009
 

Version 7.0, part of Release 2008b, includes the following enhancements:

• New nlmefit function to fit nonlinear mixed-effects models to data
• Support for mean-squared error and misclassification rate in cross-validation
• New confusionmat function for tabulating misclassifications by comparing known and predicted classes of observations
• Enhanced boxplot function, supporting new options that control the appearance of the plot
• Ability to export dataset arrays to text files
• Enhanced data cursors to display observation and group information for a variety of plots
• Support for hypergeometric distribution in disttool and randtool functions

See the Release Notes for details.

Version 6.2

Released: 01 Mar 2008
 

Version 6.2, part of Release 2008a, includes the following enhancements:

• New cross-validation functions for regression, classification, and clustering
• New sequential feature selection for regression and classification
• New quasi-random numbers for space-filling designs and Monte Carlo integration
• New partial least-squares regression for multicollinear data
• New nonnegative matrix factorization for dimension reduction

See the Release Notes for details.

Version 6.1

Released: 01 Sep 2007
 

Version 6.1, part of Release 2007b, includes the following enhancements:

• Gaussian mixture distribution fitting and random number generation
• Copula parameter estimation from data
• Diagonal covariance matrix support for multivariate normal regression
• Enhanced boxplot style suitable for displaying a large number of groups
• Conversion from covariance matrix to correlation matrix

See the Release Notes for details.