FeatureExtract

FeatureExtract[{example1,example2,…}] extracts features for each of the examplei using a feature extractor trained on all the examplei.

FeatureExtract[examples,extractor] extracts features using the specified feature extractor method.

FeatureExtract[examples,{extractor1,extractor2,…}] extracts features by applying the extractori in sequence.

FeatureExtract[examples,spec->ext] uses the extractor methods specified by ext on parts of examples specified by spec. 

FeatureExtract[examples,{spec1->ext1,spec2->ext2,…}] uses the extractor methods exti on parts of examples specified by the speci.

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