## Package org.apache.mahout.math.hadoop

Class Summary
DistributedRowMatrix: DistributedRowMatrix is a FileSystem-backed VectorIterable in which the vectors live in a SequenceFile<WritableComparable,VectorWritable>, and distributed operations are executed as M/R passes on Hadoop.
DistributedRowMatrix.MatrixEntryWritable
MatrixColumnMeansJob: MatrixColumnMeansJob is a job for calculating the column-wise mean of a DistributedRowMatrix.
MatrixColumnMeansJob.MatrixColumnMeansMapper: Mapper for calculation of column-wise mean.
MatrixColumnMeansJob.MatrixColumnMeansReducer: The reducer adds the partial column-wise sums from each of the mappers to compute the total column-wise sum.
MatrixMultiplicationJob
MatrixMultiplicationJob.MatrixMultiplicationReducer
MatrixMultiplicationJob.MatrixMultiplyMapper
TimesSquaredJob
TimesSquaredJob.TimesMapper
TimesSquaredJob.TimesSquaredMapper<T extends WritableComparable>
TimesSquaredJob.VectorSummingReducer
TransposeJob: Transpose a matrix
TransposeJob.MergeVectorsCombiner
TransposeJob.MergeVectorsReducer
TransposeJob.TransposeMapper

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