Package smile.data.vector

Interface DoubleVector

All Superinterfaces:
BaseVector<Double,Double,DoubleStream>, Serializable
public interface DoubleVector extends BaseVector<Double,Double,DoubleStream>
An immutable double vector.

  • Method Details

    • type

      default DataType type()
      Description copied from interface: BaseVector
      Returns the data type of elements.
      Specified by:
      type in interface BaseVector<Double,Double,DoubleStream>
      Returns:
      the data type of elements.

    • array

      double[] array()
      Description copied from interface: BaseVector
      Returns the array that backs this vector. This is mostly for smile internal use for high performance. The application developers should not use this method.
      Specified by:
      array in interface BaseVector<Double,Double,DoubleStream>
      Returns:
      the array that backs this vector.

    • get

      DoubleVector get(int... index)
      Description copied from interface: BaseVector
      Returns a new vector with selected entries.
      Specified by:
      get in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      index - the index of selected entries.
      Returns:
      the new vector of selected entries.

    • getBoolean

      default boolean getBoolean(int i)
      Description copied from interface: BaseVector
      Returns the boolean value at position i.
      Specified by:
      getBoolean in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • getChar

      default char getChar(int i)
      Description copied from interface: BaseVector
      Returns the character value at position i.
      Specified by:
      getChar in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • getByte

      default byte getByte(int i)
      Description copied from interface: BaseVector
      Returns the byte value at position i.
      Specified by:
      getByte in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • getShort

      default short getShort(int i)
      Description copied from interface: BaseVector
      Returns the short value at position i.
      Specified by:
      getShort in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • getInt

      default int getInt(int i)
      Description copied from interface: BaseVector
      Returns the integer value at position i.
      Specified by:
      getInt in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • getLong

      default long getLong(int i)
      Description copied from interface: BaseVector
      Returns the long value at position i.
      Specified by:
      getLong in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • getFloat

      default float getFloat(int i)
      Description copied from interface: BaseVector
      Returns the float value at position i.
      Specified by:
      getFloat in interface BaseVector<Double,Double,DoubleStream>
      Parameters:
      i - the index.
      Returns:
      the value.

    • toString

      default String toString(int n)
      Returns the string representation of vector.
      Parameters:
      n - the number of elements to show.
      Returns:
      the string representation of vector.

    • fillna

      void fillna(double value)
      Fills NaN/Inf values using the specified value.
      Parameters:
      value - the value to replace NAs.

    • of

      static DoubleVector of(String name, double[] vector)
      Creates a named double vector.
      Parameters:
      name - the name of vector.
      vector - the data of vector.
      Returns:
      the vector.

    • of

      static DoubleVector of(String name, DoubleStream stream)
      Creates a named double vector.
      Parameters:
      name - the name of vector.
      stream - the data stream of vector.
      Returns:
      the vector.

    • of

      static DoubleVector of(StructField field, double[] vector)
      Creates a named double vector.
      Parameters:
      field - the struct field of vector.
      vector - the data of vector.
      Returns:
      the vector.

    • of

      static DoubleVector of(StructField field, DoubleStream stream)
      Creates a named double vector.
      Parameters:
      field - the struct field of vector.
      stream - the data stream of vector.
      Returns:
      the vector.