water.fvec

Class InteractionWrappedVec

java.lang.Object

water.Iced<T>

water.Keyed<Vec>

water.fvec.Vec

water.fvec.InteractionWrappedVec

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable<Vec>

public class InteractionWrappedVec
extends Vec

This class represents an interaction between two Vec instances. Another virtual Vec (akin to TransformWrappedVec) used to represent a never-materialized interaction between two columns. There are 3 types of interactions to consider: Num-Num, Num-Enum, and Enum-Enums Creation of these Vec instances is cheap except for the Enum-Enum case (since it is not known apriori the co-occurrence of enums between any two categorical columns). So in this specific case, an MRTask is done to collect the domain.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	InteractionWrappedVec.InteractionWrappedChunk

Nested classes/interfaces inherited from class water.fvec.Vec

Vec.ESPC, Vec.Reader, Vec.VectorGroup, Vec.Writer

Field Summary

Fields inherited from class water.fvec.Vec

_rowLayout, DO_HISTOGRAMS, KEY_PREFIX_LEN, PERCENTILES, T_BAD, T_CAT, T_NUM, T_STR, T_TIME, T_UUID, TYPE_STR

Fields inherited from class water.Keyed

_key

Constructor Summary

Constructors

Constructor and Description
InteractionWrappedVec(Key key, int rowLayout, java.lang.String[] vec1DomainLimit, java.lang.String[] vec2DomainLimit, boolean useAllFactorLevels, boolean skipMissing, Key<Vec> masterVecKey1, Key<Vec> masterVecKey2)

Method Summary

Methods

Modifier and Type	Method and Description
Chunk	chunkForChunkIdx(int cidx) The Chunk for a chunk#.
Vec	doCopy()
java.lang.String[]	domains()
int	expandedLength() Obtain the length of the expanded (i.e.
long[]	getBins()
Vec	masterVec()
double	mean() Vecs's mean
int	mode() Vecs's mode
double	sigma() Vecs's standard deviation
Vec	v1()
java.lang.String[]	v1Domain()
Vec	v2()
java.lang.String[]	v2Domain()

Methods inherited from class water.fvec.Vec

adaptTo, align, at, at16h, at16l, at8, atStr, base, bins, byteSize, cardinality, checksum_impl, chunkForRow, chunkIdx, chunkKey, chunkKey, copyMeta, domain, elem2ChunkIdx, equals, espc, factor, get_type_str, get_type, getVecKey, group, hashCode, isBad, isBinary, isCategorical, isConst, isInt, isNA, isNumeric, isString, isTime, isUUID, lazy_bins, length, makeCon, makeCon, makeCon, makeCon, makeCon, makeCon, makeCon, makeCons, makeCons, makeCopy, makeCopy, makeCopy, makeDoubles, makeRand, makeRepSeq, makeSeq, makeSeq, makeSeq, makeVec, makeVec, makeVec, makeZero, makeZero, makeZero, makeZero, makeZeros, makeZeros, max, maxs, min, mins, naCnt, nChunks, newKey, ninfs, nzCnt, open, pctiles, pinfs, postWrite, preWriting, readAll_impl, remove_impl, rollupStatsKey, set, set, set, set, setBad, setDomain, sparseRatio, startRollupStats, startRollupStats, stride, toCategoricalVec, toNumericVec, toString, toStringVec, writeAll_impl

Methods inherited from class water.Keyed

checksum, makeSchema, readAll, remove, remove, remove, remove, writeAll

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

InteractionWrappedVec

public InteractionWrappedVec(Key key,
                     int rowLayout,
                     java.lang.String[] vec1DomainLimit,
                     java.lang.String[] vec2DomainLimit,
                     boolean useAllFactorLevels,
                     boolean skipMissing,
                     Key<Vec> masterVecKey1,
                     Key<Vec> masterVecKey2)

Method Detail

v1Domain

public java.lang.String[] v1Domain()

v2Domain

public java.lang.String[] v2Domain()

domains

public java.lang.String[] domains()

v1

public Vec v1()

v2

public Vec v2()

expandedLength

public int expandedLength()

Obtain the length of the expanded (i.e. one-hot expanded) interaction column.

mean

public double mean()

Description copied from class: Vec

Vecs's mean

Overrides:

mean in class Vec

Returns:

Vec's mean

sigma

public double sigma()

Description copied from class: Vec

Vecs's standard deviation

Overrides:

sigma in class Vec

Returns:

Vec's standard deviation

mode

public int mode()

Description copied from class: Vec

Vecs's mode

Overrides:

mode in class Vec

Returns:

Vec's mode

getBins

public long[] getBins()

chunkForChunkIdx

public Chunk chunkForChunkIdx(int cidx)

Description copied from class: Vec

The Chunk for a chunk#. Warning: this pulls the data locally; using this call on every Chunk index on the same node will probably trigger an OOM!

Returns:

Chunk for a chunk#

doCopy

public Vec doCopy()

Overrides:

doCopy in class Vec

masterVec

public Vec masterVec()