Uses of Class
org.apache.sysml.api.mlcontext.MatrixMetadata

Packages that use MatrixMetadata

Package	Description
org.apache.sysml.api.mlcontext

Uses of MatrixMetadata in org.apache.sysml.api.mlcontext

Methods in org.apache.sysml.api.mlcontext that return MatrixMetadata

Modifier and Type	Method and Description
MatrixMetadata	Matrix.getMatrixMetadata() Obtain the matrix metadata

Methods in org.apache.sysml.api.mlcontext with parameters of type MatrixMetadata

Modifier and Type	Method and Description
static MatrixBlock	MLContextConversionUtil.binaryBlocksToMatrixBlock(org.apache.spark.api.java.JavaPairRDD<MatrixIndexes,MatrixBlock> binaryBlocks, MatrixMetadata matrixMetadata) Convert a JavaPairRDD<MatrixIndexes, MatrixBlock> to a MatrixBlock
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.binaryBlocksToMatrixObject(org.apache.spark.api.java.JavaPairRDD<MatrixIndexes,MatrixBlock> binaryBlocks, MatrixMetadata matrixMetadata) Convert a JavaPairRDD<MatrixIndexes, MatrixBlock> to a MatrixObject.
static org.apache.spark.api.java.JavaPairRDD<MatrixIndexes,MatrixBlock>	MLContextConversionUtil.dataFrameToMatrixBinaryBlocks(org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> dataFrame, MatrixMetadata matrixMetadata) Convert a DataFrame to a JavaPairRDD<MatrixIndexes, MatrixBlock> binary-block matrix.
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.dataFrameToMatrixObject(org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> dataFrame, MatrixMetadata matrixMetadata) Convert a DataFrame to a MatrixObject.
static void	MLContextConversionUtil.determineMatrixFormatIfNeeded(org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> dataFrame, MatrixMetadata matrixMetadata) If the MatrixFormat of the DataFrame has not been explicitly specified, attempt to determine the proper MatrixFormat.
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.doubleMatrixToMatrixObject(String variableName, double[][] doubleMatrix, MatrixMetadata matrixMetadata) Convert a two-dimensional double array to a MatrixObject.
static boolean	MLContextConversionUtil.isDataFrameWithIDColumn(MatrixMetadata matrixMetadata) Return whether or not the DataFrame has an ID column.
static boolean	MLContextConversionUtil.isVectorBasedDataFrame(MatrixMetadata matrixMetadata) Return whether or not the DataFrame is vector-based.
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.javaRDDStringCSVToMatrixObject(org.apache.spark.api.java.JavaRDD<String> javaRDD, MatrixMetadata matrixMetadata) Convert a JavaRDD<String> in CSV format to a MatrixObject
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.javaRDDStringIJVToMatrixObject(org.apache.spark.api.java.JavaRDD<String> javaRDD, MatrixMetadata matrixMetadata) Convert a JavaRDD<String> in IJV format to a MatrixObject .
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.matrixBlockToMatrixObject(String variableName, MatrixBlock matrixBlock, MatrixMetadata matrixMetadata) Convert a MatrixBlock to a MatrixObject.
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.rddStringCSVToMatrixObject(org.apache.spark.rdd.RDD<String> rdd, MatrixMetadata matrixMetadata) Convert a RDD<String> in CSV format to a MatrixObject
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.rddStringIJVToMatrixObject(org.apache.spark.rdd.RDD<String> rdd, MatrixMetadata matrixMetadata) Convert a RDD<String> in IJV format to a MatrixObject.
static org.apache.sysml.runtime.controlprogram.caching.MatrixObject	MLContextConversionUtil.urlToMatrixObject(URL url, MatrixMetadata matrixMetadata) Convert a matrix at a URL to a MatrixObject.

Constructors in org.apache.sysml.api.mlcontext with parameters of type MatrixMetadata

Constructor and Description
Matrix(org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> dataFrame, MatrixMetadata matrixMetadata) Convert a Spark DataFrame to a SystemML binary-block representation.
Matrix(org.apache.spark.api.java.JavaPairRDD<MatrixIndexes,MatrixBlock> binaryBlocks, MatrixMetadata matrixMetadata) Create a Matrix, specifying the SystemML binary-block matrix and its metadata.