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F

factorial(double) - Static method in class org.datavec.api.util.MathUtils

This will return the factorial of the given number n.

Factory<T> - Interface in org.datavec.api.berkeley

Factory.DefaultFactory<T> - Class in org.datavec.api.berkeley

FALSE_STRINGS - Static variable in class org.datavec.dataframe.io.TypeUtils

FALSE_STRINGS_FOR_DETECTION - Static variable in class org.datavec.dataframe.io.TypeUtils

FastFourierTransform - Class in org.datavec.audio.dsp

FFT object, transform amplitudes to frequency intensities

FastFourierTransform() - Constructor for class org.datavec.audio.dsp.FastFourierTransform

fetchCityDB() - Static method in class org.datavec.api.transform.transform.geo.GeoIPFetcher

FieldSelection - Class in org.datavec.api.records.reader.impl.jackson

FieldSelection is used in conjunction with the JacksonRecordReader (and the subclasses).

FieldSelection.Builder - Class in org.datavec.api.records.reader.impl.jackson

file - Variable in class org.datavec.api.split.FileSplitTest

file1 - Variable in class org.datavec.api.split.FileSplitTest

file2 - Variable in class org.datavec.api.split.FileSplitTest

file3 - Variable in class org.datavec.api.split.FileSplitTest

file4 - Variable in class org.datavec.api.split.FileSplitTest

file5 - Variable in class org.datavec.api.split.FileSplitTest

file6 - Variable in class org.datavec.api.split.FileSplitTest

FileFromPathIterator - Class in org.datavec.api.util.files

A simple utility method to convert a Iterator<String> to an Iterator<File>, where each String in the original iterator is created via URI.toString()

FileFromPathIterator() - Constructor for class org.datavec.api.util.files.FileFromPathIterator

fileNameClean(String) - Static method in class org.datavec.api.berkeley.StringUtils

Returns a "clean" version of the given filename in which spaces have been converted to dashes and all non-alphaneumeric chars are underscores.

fileNameMap - Variable in class org.datavec.image.recordreader.BaseImageRecordReader

fileNum - Variable in class org.datavec.image.loader.CifarLoader

FileRecordReader - Class in org.datavec.api.records.reader.impl

File reader/writer

FileRecordReader() - Constructor for class org.datavec.api.records.reader.impl.FileRecordReader

FileRecordReaderTest - Class in org.datavec.api.records.reader.impl

Created by nyghtowl on 11/14/15.

FileRecordReaderTest() - Constructor for class org.datavec.api.records.reader.impl.FileRecordReaderTest

FileRecordWriter - Class in org.datavec.api.records.writer.impl

Write to files.

FileRecordWriter() - Constructor for class org.datavec.api.records.writer.impl.FileRecordWriter

FileRecordWriter(File) - Constructor for class org.datavec.api.records.writer.impl.FileRecordWriter

FileRecordWriter(File, boolean) - Constructor for class org.datavec.api.records.writer.impl.FileRecordWriter

FileRecordWriter(File, boolean, Charset) - Constructor for class org.datavec.api.records.writer.impl.FileRecordWriter

FileRecordWriter(Configuration) - Constructor for class org.datavec.api.records.writer.impl.FileRecordWriter

Initialized based on configuration Set the following attributes in the conf:

FilesAsBytesFunction - Class in org.datavec.spark.functions.data

A PairFunction that simply loads bytes[] from a a PortableDataStream, and wraps it (and the String key) in Text and BytesWritable respectively.

FilesAsBytesFunction() - Constructor for class org.datavec.spark.functions.data.FilesAsBytesFunction

FileSplit - Class in org.datavec.api.split

File input split.

FileSplit(File, String[], boolean, Random, boolean) - Constructor for class org.datavec.api.split.FileSplit

FileSplit(File) - Constructor for class org.datavec.api.split.FileSplit

FileSplit(File, Random) - Constructor for class org.datavec.api.split.FileSplit

FileSplit(File, String[]) - Constructor for class org.datavec.api.split.FileSplit

FileSplit(File, String[], Random) - Constructor for class org.datavec.api.split.FileSplit

FileSplit(File, String[], boolean) - Constructor for class org.datavec.api.split.FileSplit

FileSplitTest - Class in org.datavec.api.split

Created by nyghtowl on 11/8/15.

FileSplitTest() - Constructor for class org.datavec.api.split.FileSplitTest

fillList(Iterator<? extends T>, List<T>) - Static method in class org.datavec.api.berkeley.Iterators

fillList(Iterator<? extends T>) - Static method in class org.datavec.api.berkeley.Iterators

Filter<T> - Interface in org.datavec.api.berkeley

Filters are boolean functions which accept or reject items.

filter(Iterator<T>, Filter<T>) - Static method in class org.datavec.api.berkeley.Iterators

filter(URI[]) - Method in class org.datavec.api.io.filters.BalancedPathFilter

filter(URI[]) - Method in interface org.datavec.api.io.filters.PathFilter

filter(URI[]) - Method in class org.datavec.api.io.filters.RandomPathFilter

Filter - Interface in org.datavec.api.transform.filter

Filter: a method of removing examples (or sequences) according to some condition

filter(Filter) - Method in class org.datavec.api.transform.TransformProcess.Builder

Add a filter operation to be executed after the previously-added operations have been executed

filter(Condition) - Method in class org.datavec.api.transform.TransformProcess.Builder

Add a filter operation, based on the specified condition.

Filter - Class in org.datavec.dataframe.filtering

A predicate applied to a Relation, to return a subset of the rows in that table

Filter() - Constructor for class org.datavec.dataframe.filtering.Filter

FilterAndFlattenJoinedValues - Class in org.datavec.spark.transform.join

Doing two things here: (a) filter out any unnecessary values, and (b) extract the List values from the JoinedValue

FilterAndFlattenJoinedValues(Join.JoinType) - Constructor for class org.datavec.spark.transform.join.FilterAndFlattenJoinedValues

FilterAndFlattenJoinedValuesAdapter - Class in org.datavec.spark.transform.join

Doing two things here: (a) filter out any unnecessary values, and (b) extract the List values from the JoinedValue

FilterAndFlattenJoinedValuesAdapter(Join.JoinType) - Constructor for class org.datavec.spark.transform.join.FilterAndFlattenJoinedValuesAdapter

FilteredIterator(Filter<T>, Iterator<T>) - Constructor for class org.datavec.api.berkeley.Iterators.FilteredIterator

FilteredIterator(Filter<T>, Iterable<T>) - Constructor for class org.datavec.api.berkeley.Iterators.FilteredIterator

FilterImageTransform - Class in org.datavec.image.transform

Filters images using FFmpeg (libavfilter): FFmpeg Filters Documentation.

FilterImageTransform(String, int, int) - Constructor for class org.datavec.image.transform.FilterImageTransform

Calls this(filters, width, height, 3).

FilterImageTransform(String, int, int, int) - Constructor for class org.datavec.image.transform.FilterImageTransform

Constructs a filtergraph out of the filter specification.

FilterInvalidValues - Class in org.datavec.api.transform.filter

FilterInvalidValues: a filter operation that removes any examples (or sequences) if the examples/sequences contains invalid values in any of a specified set of columns.

FilterInvalidValues() - Constructor for class org.datavec.api.transform.filter.FilterInvalidValues

Filter examples that have invalid values in ANY columns.

FilterInvalidValues(String...) - Constructor for class org.datavec.api.transform.filter.FilterInvalidValues

FilterList(List<Filter>) - Constructor for class org.datavec.api.transform.serde.ListWrappers.FilterList

filterResultsBy(Predicate<String>) - Method in class org.datavec.api.util.reflections.DataVecSubTypesScanner

filterTable(Table, Filter) - Static method in class org.datavec.local.transforms.TableRecords

Implements a filter

FilterWritablesBySchemaFunction - Class in org.datavec.spark.transform.filter

Created by Alex on 6/03/2016.

FilterWritablesBySchemaFunction(ColumnMetaData, boolean) - Constructor for class org.datavec.spark.transform.filter.FilterWritablesBySchemaFunction

FilterWritablesBySchemaFunction(ColumnMetaData, boolean, boolean) - Constructor for class org.datavec.spark.transform.filter.FilterWritablesBySchemaFunction

find(String, String) - Static method in class org.datavec.api.berkeley.StringUtils

Say whether this regular expression can be found inside this String.

find(String) - Method in class org.datavec.api.writable.Text

find(String, int) - Method in class org.datavec.api.writable.Text

Finds any occurence of what in the backing buffer, starting as position start.

findNext(String, char, char, int, StringBuilder) - Static method in class org.datavec.api.util.StringUtils

Finds the first occurrence of the separator character ignoring the escaped separators starting from the index.

FingerprintManager - Class in org.datavec.audio.fingerprint

Audio fingerprint manager, handle fingerprint operations

FingerprintManager() - Constructor for class org.datavec.audio.fingerprint.FingerprintManager

Constructor

FingerprintProperties - Class in org.datavec.audio.properties

FingerprintProperties() - Constructor for class org.datavec.audio.properties.FingerprintProperties

FingerprintSimilarity - Class in org.datavec.audio.fingerprint

A class for fingerprint's similarity

FingerprintSimilarity() - Constructor for class org.datavec.audio.fingerprint.FingerprintSimilarity

Constructor

FingerprintSimilarityComputer - Class in org.datavec.audio.fingerprint

Compute the similarity of two fingerprints

FingerprintSimilarityComputer(byte[], byte[]) - Constructor for class org.datavec.audio.fingerprint.FingerprintSimilarityComputer

Constructor, ready to compute the similarity of two fingerprints

first(int) - Method in class org.datavec.dataframe.api.Table

Returns a new table containing the first nrows of data in this table

first() - Method in interface org.datavec.dataframe.columns.Column

first(int) - Method in interface org.datavec.dataframe.columns.Column

first(int) - Method in interface org.datavec.dataframe.table.Relation

first(int) - Method in class org.datavec.dataframe.table.TemporaryView

FirstComparator() - Constructor for class org.datavec.api.berkeley.Pair.FirstComparator

firstElement() - Method in class org.datavec.dataframe.api.DateColumn

firstElement() - Method in class org.datavec.dataframe.api.DoubleColumn

firstElement() - Method in class org.datavec.dataframe.api.FloatColumn

firstElement() - Method in class org.datavec.dataframe.api.IntColumn

firstElement() - Method in class org.datavec.dataframe.api.LongColumn

firstElement() - Method in class org.datavec.dataframe.api.ShortColumn

FirstQuartile - Class in org.datavec.dataframe.reducing.functions

FirstQuartile(Table, String) - Constructor for class org.datavec.dataframe.reducing.functions.FirstQuartile

fit(RecordReader) - Method in interface org.datavec.api.vector.Vectorizer

Fit based on a record reader

fit(RecordReader, Vectorizer.RecordCallBack) - Method in interface org.datavec.api.vector.Vectorizer

Fit based on a record reader

fit(RecordReader) - Method in class org.datavec.nlp.vectorizer.TextVectorizer

fit(RecordReader, Vectorizer.RecordCallBack) - Method in class org.datavec.nlp.vectorizer.TextVectorizer

fitTransform(RecordReader) - Method in interface org.datavec.api.vector.Vectorizer

Fit based on a record reader

fitTransform(RecordReader, Vectorizer.RecordCallBack) - Method in interface org.datavec.api.vector.Vectorizer

Fit based on a record reader

fitTransform(RecordReader) - Method in class org.datavec.nlp.vectorizer.AbstractTfidfVectorizer

fitTransform(RecordReader) - Method in class org.datavec.nlp.vectorizer.TfidfVectorizer

fitTransform(RecordReader, Vectorizer.RecordCallBack) - Method in class org.datavec.nlp.vectorizer.TfidfVectorizer

FlatMapFunctionAdapter<T,R> - Interface in org.datavec.spark.functions

A function that returns zero or more output records from each input record.

flattenedImageFromFile(File) - Method in class org.datavec.image.loader.ImageLoader

FlipImageTransform - Class in org.datavec.image.transform

Flips images deterministically or randomly.

FlipImageTransform() - Constructor for class org.datavec.image.transform.FlipImageTransform

Calls this(null).

FlipImageTransform(int) - Constructor for class org.datavec.image.transform.FlipImageTransform

Calls this(null) and sets the flip mode.

FlipImageTransform(Random) - Constructor for class org.datavec.image.transform.FlipImageTransform

Constructs an instance of the ImageTransform.

FloatBiPredicate - Interface in org.datavec.dataframe.filtering

FloatColumn - Class in org.datavec.dataframe.api

A column in a base table that contains float values

FloatColumn(String) - Constructor for class org.datavec.dataframe.api.FloatColumn

FloatColumn(String, int) - Constructor for class org.datavec.dataframe.api.FloatColumn

FloatColumn(ColumnMetadata) - Constructor for class org.datavec.dataframe.api.FloatColumn

floatColumn(int) - Method in interface org.datavec.dataframe.table.Relation

floatColumn(String) - Method in interface org.datavec.dataframe.table.Relation

floatColumn(int) - Method in class org.datavec.dataframe.table.TemporaryView

floatColumn(String) - Method in class org.datavec.dataframe.table.TemporaryView

FloatColumnTest - Class in org.datavec.dataframe.api

Unit tests for the FloatColumn class

FloatColumnTest() - Constructor for class org.datavec.dataframe.api.FloatColumnTest

FloatColumnUtils - Interface in org.datavec.dataframe.columns

FloatEqualTo - Class in org.datavec.dataframe.filtering

FloatEqualTo(ColumnReference, float) - Constructor for class org.datavec.dataframe.filtering.FloatEqualTo

FloatGreaterThan - Class in org.datavec.dataframe.filtering

FloatGreaterThan(ColumnReference, float) - Constructor for class org.datavec.dataframe.filtering.FloatGreaterThan

FloatGreaterThanOrEqualTo - Class in org.datavec.dataframe.filtering

FloatGreaterThanOrEqualTo(ColumnReference, float) - Constructor for class org.datavec.dataframe.filtering.FloatGreaterThanOrEqualTo

FloatLessThan - Class in org.datavec.dataframe.filtering

FloatLessThan(ColumnReference, float) - Constructor for class org.datavec.dataframe.filtering.FloatLessThan

FloatLessThanOrEqualTo - Class in org.datavec.dataframe.filtering

FloatLessThanOrEqualTo(ColumnReference, float) - Constructor for class org.datavec.dataframe.filtering.FloatLessThanOrEqualTo

FloatMetaData - Class in org.datavec.api.transform.metadata

MetaData for a Float column.

FloatMetaData(String) - Constructor for class org.datavec.api.transform.metadata.FloatMetaData

FloatMetaData(String, Float, Float) - Constructor for class org.datavec.api.transform.metadata.FloatMetaData

FloatMetaData(String, Float, Float, boolean, boolean) - Constructor for class org.datavec.api.transform.metadata.FloatMetaData

FloatNotEqualTo - Class in org.datavec.dataframe.filtering

FloatNotEqualTo(ColumnReference, float) - Constructor for class org.datavec.dataframe.filtering.FloatNotEqualTo

FloatPredicate - Interface in org.datavec.dataframe.filtering

FloatWritable - Class in org.datavec.api.writable

A WritableComparable for floats.

FloatWritable() - Constructor for class org.datavec.api.writable.FloatWritable

FloatWritable(float) - Constructor for class org.datavec.api.writable.FloatWritable

FloatWritable.Comparator - Class in org.datavec.api.writable

A Comparator optimized for FloatWritable.

FloatWritableComparator - Class in org.datavec.api.writable.comparator

FloatWritableComparator() - Constructor for class org.datavec.api.writable.comparator.FloatWritableComparator

FloatWritableConverter - Class in org.datavec.api.io.converters

Convert a writable to a double

FloatWritableConverter() - Constructor for class org.datavec.api.io.converters.FloatWritableConverter

FMT_HEADER - Static variable in class org.datavec.audio.WaveHeader

folderSize(File) - Static method in class org.datavec.dataframe.testutil.DirectoryUtils

formatPercent(double, int) - Static method in class org.datavec.api.util.StringUtils

Format a percentage for presentation to the user.

formatTime(long) - Static method in class org.datavec.api.util.StringUtils

Given the time in long milliseconds, returns a String in the format Xhrs, Ymins, Z sec.

formatTimeDiff(long, long) - Static method in class org.datavec.api.util.StringUtils

Given a finish and start time in long milliseconds, returns a String in the format Xhrs, Ymins, Z sec, for the time difference between two times.

frame - Variable in class org.datavec.image.mnist.draw.DrawReconstruction

framesPerSecond - Variable in class org.datavec.codec.reader.BaseCodecRecordReader

fromDataSet(DataSet) - Static method in class org.datavec.spark.transform.model.BatchRecord

Return a batch record based on a dataset

fromFile(File) - Method in class org.datavec.image.loader.ImageLoader

Load a rastered image from file

fromFileMultipleChannels(File) - Method in class org.datavec.image.loader.ImageLoader

Load a rastered image from file

fromJson(String) - Static method in class org.datavec.api.transform.analysis.DataAnalysis

Deserialize a JSON DataAnalysis String that was previously serialized with DataAnalysis.toJson()

fromJson(String) - Static method in class org.datavec.api.transform.schema.Schema

Create a schema from a given json string

fromJson(String) - Static method in class org.datavec.api.transform.TransformProcess

Deserialize a JSON String (created by TransformProcess.toJson()) to a TransformProcess

fromJson(String) - Static method in class org.datavec.dataframe.store.ColumnMetadata

fromJson(String) - Static method in class org.datavec.dataframe.store.TableMetadata

fromRecordsAndSchema(List<List<Writable>>, Schema) - Static method in class org.datavec.local.transforms.TableRecords

Create a table from records and a given schema.

fromRow(DataSet) - Static method in class org.datavec.spark.transform.model.CSVRecord

Instantiate a csv record from a vector given either an input dataset and a one hot matrix, the index will be appended to the end of the record, or for regression it will append all values in the labels

fromSchema(Schema) - Static method in class org.datavec.spark.transform.DataFrames

Convert a datavec schema to a struct type in spark

fromSchemaSequence(Schema) - Static method in class org.datavec.spark.transform.DataFrames

Convert the DataVec sequence schema to a StructType for Spark, for example for use in DataFrames.toDataFrameSequence(Schema, JavaRDD)} Note: as per DataFrames.toDataFrameSequence(Schema, JavaRDD)}, the StructType has two additional columns added to it:
- Column 0: Sequence UUID (name: DataFrames.SEQUENCE_UUID_COLUMN) - a UUID for the original sequence
- Column 1: Sequence index (name: DataFrames.SEQUENCE_INDEX_COLUMN - an index (integer, starting at 0) for the position of this record in the original time series.
These two columns are required if the data is to be converted back into a sequence at a later point, for example using DataFrames.toRecordsSequence(DataRowsFacade)

fromString(String, String) - Static method in class org.datavec.api.util.MathUtils

This will take a given string and separator and convert it to an equivalent double array.

fromStructType(StructType) - Static method in class org.datavec.spark.transform.DataFrames

Create a datavec schema from a struct type

fromTable(Table) - Static method in class org.datavec.local.transforms.TableRecords

Convert an all numeric table to a list of records

fromYaml(String) - Static method in class org.datavec.api.transform.analysis.DataAnalysis

Deserialize a YAML DataAnalysis String that was previously serialized with DataAnalysis.toYaml()

fromYaml(String) - Static method in class org.datavec.api.transform.schema.Schema

Create a schema from the given yaml string

fromYaml(String) - Static method in class org.datavec.api.transform.TransformProcess

Deserialize a JSON String (created by TransformProcess.toJson()) to a TransformProcess

fullCopy() - Method in class org.datavec.dataframe.api.Table

Returns a table with the same columns as this table, but no data

fullDir - Static variable in class org.datavec.image.loader.CifarLoader

fullDir - Variable in class org.datavec.image.loader.LFWLoader

function() - Method in class org.datavec.dataframe.reducing.functions.Count

function() - Method in class org.datavec.dataframe.reducing.functions.FirstQuartile

function() - Method in class org.datavec.dataframe.reducing.functions.GeometricMean

function() - Method in class org.datavec.dataframe.reducing.functions.Kurtosis

function() - Method in class org.datavec.dataframe.reducing.functions.Maximum

function() - Method in class org.datavec.dataframe.reducing.functions.Mean

function() - Method in class org.datavec.dataframe.reducing.functions.Median

function() - Method in class org.datavec.dataframe.reducing.functions.Minimum

function() - Method in class org.datavec.dataframe.reducing.functions.PopulationVariance

function() - Method in class org.datavec.dataframe.reducing.functions.Product

function() - Method in class org.datavec.dataframe.reducing.functions.QuadraticMean

function() - Method in class org.datavec.dataframe.reducing.functions.Range

function() - Method in class org.datavec.dataframe.reducing.functions.Skewness

function() - Method in class org.datavec.dataframe.reducing.functions.StandardDeviation

function() - Method in class org.datavec.dataframe.reducing.functions.Sum

function() - Method in class org.datavec.dataframe.reducing.functions.SummaryFunction

function() - Method in class org.datavec.dataframe.reducing.functions.SumOfLogs

function() - Method in class org.datavec.dataframe.reducing.functions.SumOfSquares

function() - Method in class org.datavec.dataframe.reducing.functions.ThirdQuartile

function() - Method in class org.datavec.dataframe.reducing.functions.Variance

function(Function<T, Result>) - Static method in class org.datavec.spark.transform.FunctionUtil

function0(Supplier<Result>) - Static method in class org.datavec.spark.transform.FunctionUtil

functionName() - Method in interface org.datavec.dataframe.reducing.NumericReduceFunction

FunctionUtil - Class in org.datavec.spark.transform

Utility methods for Routing

FunctionUtil() - Constructor for class org.datavec.spark.transform.FunctionUtil

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