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# Classes and Interfaces in #DataFu - 55 results found.
NameDescriptionTypePackageFrameworkJavaDoc
AliasableEvalFuncMakes implementing and using UDFs easier by enabling named parameters.Classdatafu.pig.utilDataFujavadoc
AppendToBagAppends a tuple to a bag.Classdatafu.pig.bagsDataFujavadoc
AssertAssert has been renamed to AssertUDF.Classdatafu.pig.utilDataFujavadoc
AssertUDFFilter function which asserts that a value is true.Classdatafu.pig.utilDataFujavadoc
BagConcatUnions all input bags to produce a single bag containing all tuples.Classdatafu.pig.bagsDataFujavadoc
BagGroupPerforms an in-memory group operation on a bag.Classdatafu.pig.bagsDataFujavadoc
BagLeftOuterJoinPerforms an in-memory left outer join across multiple bags.Classdatafu.pig.bagsDataFujavadoc
BagSplitSplits a bag of tuples into a bag of bags, where the inner bags collectively contain the tuples from the original bag.Classdatafu.pig.bagsDataFujavadoc
BoolToIntUDF which converts a Boolean to an Integer.Classdatafu.pig.utilDataFujavadoc
CoalesceReturns the first non-null value from a tuple, just like COALESCE in SQL.Classdatafu.pig.utilDataFujavadoc
ContextualEvalFuncAn abstract class which enables UDFs to store instance properties on the front end which will be available on the back end.Classdatafu.pig.utilDataFujavadoc
CountEachGenerates a count of the number of times each distinct tuple appears in a bag.Classdatafu.pig.bagsDataFujavadoc
DataFuExceptionSee Also:Serialized FormConstructor SummaryDataFuException()Classdatafu.pig.utilDataFujavadoc
DistinctByGet distinct elements in a bag by a given set of field positions.Classdatafu.pig.bagsDataFujavadoc
EmptyBagToNullReturns null if the input is an empty bag; otherwise, returns the input bag unchanged.Classdatafu.pig.bagsDataFujavadoc
EmptyBagToNullFieldsFor an empty bag, inserts a tuple having null values for all fields; otherwise, the input bag is returned unchanged.Classdatafu.pig.bagsDataFujavadoc
EnumerateEnumerate a bag, appending to each tuple its index within the bag.Classdatafu.pig.bagsDataFujavadoc
FieldNotFoundThrown by {see AliasableEvalFunc} when attempting to access an unknown field by name.Classdatafu.pig.utilDataFujavadoc
FirstTupleFromBagReturns the first tuple from a bag.Classdatafu.pig.bagsDataFujavadoc
HaversineDistInMilesComputes the distance (in miles) between two latitude-longitude pairs using the Haversine formula.Classdatafu.pig.geoDataFujavadoc
HyperLogLogPlusPlusA UDF that applies the HyperLogLog++ cardinality estimation algorithm.Classdatafu.pig.statsDataFujavadoc
InIn has been renamed to InUDF.Classdatafu.pig.utilDataFujavadoc
IntToBoolUDF which converts an Integer to a Boolean.Classdatafu.pig.utilDataFujavadoc
InUDFSimilar to the SQL IN function, this function provides a convenient way to filter using a logical disjunction over many values.Classdatafu.pig.utilDataFujavadoc

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MarkovPairsAccepts a bag of tuples, with user supplied ordering, and generates pairs that can be used for a Markov chain analysis.Classdatafu.pig.statsDataFujavadoc
MD5Computes the MD5 value of a string and outputs it in hex (by default).Classdatafu.pig.hashDataFujavadoc
MedianComputes the median for a sorted input bag, using type R-2 estimation.Classdatafu.pig.statsDataFujavadoc
NullToEmptyBagReturns an empty bag if the input is null; otherwise, returns the input bag unchanged.Classdatafu.pig.bagsDataFujavadoc
PageRankA UDF which implements PageRank.Classdatafu.pig.linkanalysisDataFujavadoc
PageRankImplAn implementation of PageRank, used by the PageRank UDF.Classdatafu.pig.linkanalysisDataFujavadoc
PrependToBagPrepends a tuple to a bag.Classdatafu.pig.bagsDataFujavadoc
Quantile for a sorted input bag, using type R-2 estimation.Classdatafu.pig.statsDataFujavadoc
QuantileUtilMethods used by Quantile.Classdatafu.pig.statsDataFujavadoc
RandIntGenerates a uniformly distributed integer between two bounds.Classdatafu.pig.randomDataFujavadoc
ReservoirSamplePerforms a simple random sample using an in-memory reservoir to produce a uniformly random sample of a given size.Classdatafu.pig.samplingDataFujavadoc
ReverseEnumerateEnumerate a bag, appending to each tuple its index within the bag, with indices being produced in {(A),(B),(C),(D)} => {(A,3),(B,2),(C,1),(D,0)}Classdatafu.pig.bagsDataFujavadoc
SampleByKeyProvides a way of sampling tuples based on certain fields.Classdatafu.pig.samplingDataFujavadoc
SessionCountPerforms a count of events, ignoring events which occur within the This is useful for tasks such as counting the number of page views per user since it:Classdatafu.pig.sessionsDataFujavadoc
SessionizeSessionizes an input stream, appending a session ID to each tuple.Classdatafu.pig.sessionsDataFujavadoc
SetDifferenceComputes the set difference of two or more bags.Classdatafu.pig.setsDataFujavadoc
SetIntersectComputes the set intersection of two or more bags.Classdatafu.pig.setsDataFujavadoc
SetUnionComputes the set union of two or more bags.Classdatafu.pig.setsDataFujavadoc
SHAFields inherited from class org.Classdatafu.pig.hashDataFujavadoc
SimpleEvalFuncUses reflection to makes writing simple wrapper Pig UDFs easier.Classdatafu.pig.utilDataFujavadoc
SimpleRandomSampleScalable simple random sampling.Classdatafu.pig.samplingDataFujavadoc
SimpleRandomSampleWithReplacementElectSelect the candidate with the smallest score for each position from the candidates proposed by SimpleRandomSampleWithReplacementVote.Classdatafu.pig.samplingDataFujavadoc
SimpleRandomSampleWithReplacementVoteScalable simple random sampling with replacement (ScaSRSWR).Classdatafu.pig.samplingDataFujavadoc
StreamingMedianComputes the approximate median for a (not necessarily sorted) input bag, using the Munro-Paterson algorithm.Classdatafu.pig.statsDataFujavadoc
StreamingQuantileComputes approximate quantiles for a (not necessarily sorted) input bag, using the Munro-Paterson algorithm.Classdatafu.pig.statsDataFujavadoc

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TransposeTupleToBagPerforms a transpose on a tuple, resulting in a bag of key, value fields where the key is the column name and the value is the value of that column in the tuple.Classdatafu.pig.utilDataFujavadoc
UnorderedPairsGenerates pairs of all items in a bag.Classdatafu.pig.bagsDataFujavadoc
UserAgentClassifyGiven a user agent string, this UDF classifies clients to 'mobile' and 'desktop'.Classdatafu.pig.urlsDataFujavadoc
VARGenerates the Variance of a set of Values.Classdatafu.pig.statsDataFujavadoc
WeightedSamplePerforms weighted bernoulli sampling on a bag.Classdatafu.pig.samplingDataFujavadoc
WilsonBinConfComputes the Wilsonian binomial proportion confidence interval Constructor requires the confidence interval (alpha) parameter, and theClassdatafu.pig.statsDataFujavadoc

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