Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package saddle

    Saddle is a Scala Data Library.

    Saddle

    Saddle is a Scala Data Library.

    Saddle provides array-backed, indexed one- and two-dimensional data structures.

    These data structures are specialized on JVM primitives. With them one can often avoid the overhead of boxing and unboxing.

    Basic operations also aim to be robust to missing values (NA's)

    The building blocks are intended to be easily composed.

    The foundational building blocks are:

    Inspiration for Saddle comes from many sources, including the R programming language, the pandas data analysis library for Python, and the Scala collections library.

    Definition Classes
    org
  • package array

    This package contains utilities for working with arrays that are specialized for numeric types.

    This package contains utilities for working with arrays that are specialized for numeric types.

    Definition Classes
    saddle
  • package binary

    Binary serialization for Frame[String,String,T] or Mat[T] with primitive T

    Binary serialization for Frame[String,String,T] or Mat[T] with primitive T

    The layout of binary format is as follows:

    • The first 6 bytes are "SADDLE"
    • The next unsigned byte is the major version
    • The next unsigned byte is the minor version
    • The next 4 bytes form a little endian integer as HEADER_LENGTH
    • The next HEADER_LENGTH bytes form an UTF-8 string as the header.
    • The header is a valid JSON object with the following fields:
      • v: numeric positive integer is the version of the header structure
      • colix : a JSON array of strings, it is the column index of the frame
      • rowix : a JSON array of strings, it is the row index of the frame
      • numrows: numeric positive integer, number of rows
      • numcols: numeric positive integer, number of cols
      • Either one of rowix or numrows may be missing
      • Either one of colix or numcols may be missing
      • rowmajor : a boolean, indicating whether the data is stored in row-major or col-major order
      • datatype : string, either "double", "long", "int", "float", "byte"
    • The header is padded with spaces (0x20) such that HEADER_LENGTH+12 is divisible by 16. The count of spaces are included in HEADER_LENGTH.
    • The next width * numRows * numCols bytes form a little endian primitive array in row-major or col-major order. numRows and numCols are determined from the rowix/numrows and colix/numcols header fields. width is determined from the datatype field (8 for double and long, 4 for int and float, 1 for byte)
    Definition Classes
    saddle
  • package csv
    Definition Classes
    saddle
  • package groupby
    Definition Classes
    saddle
  • package index
    Definition Classes
    saddle
  • package io
    Definition Classes
    saddle
  • package linalg
    Definition Classes
    saddle
  • package macros
    Definition Classes
    saddle
  • package mat
    Definition Classes
    saddle
  • package npy
    Definition Classes
    saddle
  • package ops

    Provides type aliases for a few basic operations

    Provides type aliases for a few basic operations

    Definition Classes
    saddle
  • package scalar
    Definition Classes
    saddle
  • package spire
    Definition Classes
    saddle
  • package util

    Additional utilities that need a home

    Additional utilities that need a home

    Definition Classes
    saddle
  • package vec

    Factory methods to generate Vec instances

    Factory methods to generate Vec instances

    Definition Classes
    saddle
  • ArrToVec
  • Buffer
  • FillBackward
  • FillForward
  • FillMethod
  • Frame
  • Index
  • Mat
  • Numeric
  • OptionToScalar
  • PctMethod
  • PrimitiveToScalar
  • RankTie
  • SeqToFrame
  • SeqToFrame2
  • SeqToIndex
  • SeqToMat
  • SeqToSeries
  • SeqToVec
  • Series
  • Vec
  • VecDoubleOps
  • doubleIsNumeric
  • floatIsNumeric
  • intIsNumeric
  • longIsNumeric
  • order

object Mat

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Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def apply[T](values: Vec[T]*)(implicit arg0: ST[T]): Mat[T]

    Factory method to create a Mat from a sequence of Vec.

    Factory method to create a Mat from a sequence of Vec. Each inner Vec will become a column of the new Mat instance.

    T

    Type of elements in array

    values

    Sequence of Vec, each of which is to be a column

  5. def apply[T](values: Array[Vec[T]])(implicit arg0: ST[T]): Mat[T]

    Factory method to create a Mat from an array of Vec.

    Factory method to create a Mat from an array of Vec. Each inner Vec will become a column of the new Mat instance.

    T

    Type of elements in Vec

    values

    Array of Vec, each of which is to be a column

  6. def apply[T](values: Array[Array[T]])(implicit arg0: ST[T]): Mat[T]

    Factory method to create a Mat from an array of arrays.

    Factory method to create a Mat from an array of arrays. Each inner array will become a column of the new Mat instance.

    T

    Type of elements in inner array

    values

    Array of arrays, each of which is to be a column

  7. def apply[T](numRows: Int, numCols: Int)(implicit st: ST[T]): Mat[T]

    Factory method to create an zero Mat (all zeros)

    Factory method to create an zero Mat (all zeros)

    T

    Type of elements in Mat

    numRows

    Number of rows in Mat

    numCols

    Number of cols in Mat

  8. def apply[T](rows: Int, cols: Int, vec: Vec[T])(implicit st: ST[T]): Mat[T]
  9. def apply[T](rows: Int, cols: Int, arr: Array[T])(implicit st: ST[T]): Mat[T]

    Factory method to create a new Mat from raw materials

    Factory method to create a new Mat from raw materials

    T

    Type of data in array

    rows

    Number of rows in Mat

    cols

    Number of cols in Mat

    arr

    A 1D array of backing data in row-major order

  10. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  11. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  12. def empty[T](implicit arg0: ST[T]): Mat[T]

    Factory method to create an empty Mat

    Factory method to create an empty Mat

    T

    Type of Mat

  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  15. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  16. def fromRows[T](rows: Vec[T]*)(implicit arg0: ST[T]): Mat[T]

    Factory method to create a Mat from a sequence of Vec.

    Factory method to create a Mat from a sequence of Vec. Each inner Vec will become a row of the new Mat instance.

    T

    Type of elements in array

  17. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  18. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  19. def ident(n: Int): Mat[Double]

    Factory method to create an identity matrix; ie with ones along the diagonal and zeros off-diagonal.

    Factory method to create an identity matrix; ie with ones along the diagonal and zeros off-diagonal.

    n

    The width of the square matrix

  20. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  21. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  22. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  25. def toString(): String
    Definition Classes
    AnyRef → Any
  26. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  27. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  28. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

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