Enum MatrixFormat

    • Enum Constant Detail

      • CSV

        public static final MatrixFormat CSV
        Comma-separated value format (dense).
      • IJV

        public static final MatrixFormat IJV
        (I J V) format (sparse). I and J represent matrix coordinates and V represents the value. The I J and V values are space-separated.

        public static final MatrixFormat DF_DOUBLES_WITH_INDEX
        DataFrame of doubles with a row index.
      • DF_DOUBLES

        public static final MatrixFormat DF_DOUBLES
        DataFrame of doubles with no row index.

        public static final MatrixFormat DF_VECTOR_WITH_INDEX
        Vector DataFrame with a row index.
      • DF_VECTOR

        public static final MatrixFormat DF_VECTOR
        Vector DataFrame with no row index.
    • Method Detail

      • values

        public static MatrixFormat[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
        for (MatrixFormat c : MatrixFormat.values())
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static MatrixFormat valueOf​(String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        name - the name of the enum constant to be returned.
        the enum constant with the specified name
        IllegalArgumentException - if this enum type has no constant with the specified name
        NullPointerException - if the argument is null
      • isVectorBased

        public boolean isVectorBased()
        Is the matrix format vector-based?
        true if matrix is a vector-based DataFrame, false otherwise.
      • hasIDColumn

        public boolean hasIDColumn()
        Does the DataFrame have a row index?
        true if the DataFrame has a row index, false otherwise.