Package org.tribuo.data.columnar.extractors
package org.tribuo.data.columnar.extractors
Provides implementations of
FieldExtractor.
The FieldExtractor.getMetadataName() values of "name" Example.NAME
and "weight" (case-sensitive) are special. In particular, "name" is used throughout the Example
environment to uniquely identify Examples within a Dataset. "weight" should only
be used for the FieldExtractor supplied to RowProcessor
as the weightExtractor which is used by the system to weight Examples.
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ClassesClassDescriptionExtracts the field value and translates it to a
LocalDatebased on the specifiedDateTimeFormatter.Extracts the field value and converts it to a double.Extracts the field value and converts it to a float.Extracts the field value and emits it as a String.An Extractor with special casing for loading the index from a Row.Extracts the field value and converts it to a int.Extracts the field value and translates it to anOffsetDateTimebased on the specifiedDateTimeFormatter.Extracts a value from a single field to be placed in anExample's metadata field.