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Friday, September 30 2011 06:47

Automatic Detection Of Variable Types In SPM

SPM offers some degree of automatic type detection when it reads a database, but this support may still require some additional effort on the part of a user. How SPM works depends on the file type being read:

Published in Company

The Salford Predictive Modelerâ„¢ suite (SPM) includes a number of automated tools to assist in the process of feature selection under the BATTERY mechanism. For example,

BATTERY KEEP

Selects a subset of features at random and builds a model from this random subset only. The GUI will guide you in how to use this option, but from the command line you would issue something like:

BATTERY KEEP=100, 15

Which requests 100 models, each of which includes 15 randomly-selected predictors. If we are sure that we want certain variables included in every such model, the command would look like:

BATTERY KEEP=100, 15 CORE= X1, X2, X3, X4, X5
Published in Dan Steinberg