## Package org.apache.mahout.utils

Interface Summary
SplitInput.SplitCallback: Used to pass information back to a caller once a file has been split without the need for a data object

Class Summary
Bump125: Helps with making nice intervals at arbitrary scale.
ConcatenateVectorsJob
ConcatenateVectorsReducer
MatrixDumper: Export a Matrix in various text formats: * CSV file Input format: Hadoop SequenceFile with Text key and MatrixWritable value, 1 pair TODO: Needs class for key value- should not hard-code to Text.
SequenceFileDumper
SplitInput: A utility for splitting files in the input format used by the Bayes classifiers or anything else that has one item per line or SequenceFiles (key/value) into training and test sets in order to perform cross-validation.
SplitInputJob
SplitInputJob.SplitInputComparator: Randomly permute key value pairs
SplitInputJob.SplitInputMapper: Mapper which downsamples the input by downsamplingFactor
SplitInputJob.SplitInputReducer: Reducer which uses MultipleOutputs to randomly allocate key value pairs between test and training outputs

Copyright © 2008–2014 The Apache Software Foundation. All rights reserved.