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## cc.mallet.pipe
Class Csv2Array

    java.lang.Object
      cc.mallet.pipe.Pipe
          cc.mallet.pipe.Csv2Array

All Implemented Interfaces:
  AlphabetCarrying, java.io.Serializable

    public class Csv2Array

extends Pipe

Converts a string of comma separated values to an array. To be used prior to `Array2FeatureVector`. Note that this class assumes that each location of the line corresponds to a feature index (i.e. "dense" representation) eg: instance 1: 1,0,0,1,0,0,1 << feature alphabet size = 7 instance 2: 0,0,1,0,0,0,1 << feature alphabet size = 7

Author:
  Aron Culotta
See Also:
  Serialized Form

Constructor Summary
`Csv2Array()`
`Csv2Array(CharSequenceLexer l)`
`Csv2Array(java.lang.String regex)`

Method Summary
`Instance` | `pipe(Instance carrier)` Convert the data in an `Instance` from a CharSequence of comma-separated-values to an array, where each index is the feature name.

Methods inherited from class cc.mallet.pipe.Pipe
`alphabetsMatch, getAlphabet, getAlphabets, getDataAlphabet, getInstanceId, getTargetAlphabet, instanceFrom, instancesFrom, instancesFrom, isDataAlphabetSet, isTargetProcessing, newIteratorFrom, preceedingPipeDataAlphabetNotification, preceedingPipeTargetAlphabetNotification, precondition, readResolve, setDataAlphabet, setOrCheckDataAlphabet, setOrCheckTargetAlphabet, setTargetAlphabet, setTargetProcessing`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Csv2Array

    public Csv2Array()

### Csv2Array

    public Csv2Array(java.lang.String regex)

### Csv2Array

    public Csv2Array(CharSequenceLexer l)

Method Detail

### pipe

    public Instance pipe(Instance carrier)

  Convert the data in an `Instance` from a CharSequence of comma-separated-values to an array, where each index is the feature name.

  Overrides:
    `pipe` in class `Pipe`

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