object DenseMatrix extends Serializable
Factory methods for org.apache.spark.ml.linalg.DenseMatrix.
- Annotations
- @Since( "2.0.0" )
- Source
- Matrices.scala
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def
diag(vector: Vector): DenseMatrix
Generate a diagonal matrix in
DenseMatrix
format from the supplied values.Generate a diagonal matrix in
DenseMatrix
format from the supplied values.- vector
a
Vector
that will form the values on the diagonal of the matrix- returns
Square
DenseMatrix
with sizevalues.length
xvalues.length
andvalues
on the diagonal
- Annotations
- @Since( "2.0.0" )
-
def
eye(n: Int): DenseMatrix
Generate an Identity Matrix in
DenseMatrix
format.Generate an Identity Matrix in
DenseMatrix
format.- n
number of rows and columns of the matrix
- returns
DenseMatrix
with sizen
xn
and values of ones on the diagonal
- Annotations
- @Since( "2.0.0" )
-
def
ones(numRows: Int, numCols: Int): DenseMatrix
Generate a
DenseMatrix
consisting of ones.Generate a
DenseMatrix
consisting of ones.- numRows
number of rows of the matrix
- numCols
number of columns of the matrix
- returns
DenseMatrix
with sizenumRows
xnumCols
and values of ones
- Annotations
- @Since( "2.0.0" )
-
def
rand(numRows: Int, numCols: Int, rng: Random): DenseMatrix
Generate a
DenseMatrix
consisting ofi.i.d.
uniform random numbers.Generate a
DenseMatrix
consisting ofi.i.d.
uniform random numbers.- numRows
number of rows of the matrix
- numCols
number of columns of the matrix
- rng
a random number generator
- returns
DenseMatrix
with sizenumRows
xnumCols
and values in U(0, 1)
- Annotations
- @Since( "2.0.0" )
-
def
randn(numRows: Int, numCols: Int, rng: Random): DenseMatrix
Generate a
DenseMatrix
consisting ofi.i.d.
gaussian random numbers.Generate a
DenseMatrix
consisting ofi.i.d.
gaussian random numbers.- numRows
number of rows of the matrix
- numCols
number of columns of the matrix
- rng
a random number generator
- returns
DenseMatrix
with sizenumRows
xnumCols
and values in N(0, 1)
- Annotations
- @Since( "2.0.0" )
-
def
zeros(numRows: Int, numCols: Int): DenseMatrix
Generate a
DenseMatrix
consisting of zeros.Generate a
DenseMatrix
consisting of zeros.- numRows
number of rows of the matrix
- numCols
number of columns of the matrix
- returns
DenseMatrix
with sizenumRows
xnumCols
and values of zeros
- Annotations
- @Since( "2.0.0" )