| Interface | Description | 
|---|---|
| Matrix | 
 Trait for a local matrix. 
 | 
| Vector | 
 Represents a numeric vector, whose index type is Int and value type is Double. 
 | 
| Class | Description | 
|---|---|
| BLAS | 
 BLAS routines for MLlib's vectors and matrices. 
 | 
| DenseMatrix | 
 Column-major dense matrix. 
 | 
| DenseVector | 
 A dense vector represented by a value array. 
 | 
| JsonMatrixConverter | |
| JsonVectorConverter | |
| Matrices | 
 Factory methods for  
Matrix. | 
| SparseMatrix | 
 Column-major sparse matrix. 
 | 
| SparseVector | 
 A sparse vector represented by an index array and a value array. 
 | 
| SQLDataTypes | 
 :: DeveloperApi ::
 SQL data types for vectors and matrices. 
 | 
| Vectors | 
 Factory methods for  
Vector. |