gmatTimesDiagVec: Multiply a matrix times the 'diag' of a vector quickly.
In njm18/gmatrix: GPU Computing in R
Description
Usage
Arguments
Value
Note
Author(s)
See Also
Examples
Description
This function calculates A %*% diag(v). It is much faster than the direct calculation as it avoids the huge matrix multiplication problem.
Usage
1
gmatTimesDiagVec(A, v)
Arguments
A
An object of class gmatrix or 'matrix'.
v
An object of class 'gvecotr' or a 'vector'.
Value
Returns a gmatrix
Note
Note that to calculate the diag(v) %*% A one may use the efficient formula v*A.
Author(s)
Nathan Morris
See Also
Examples
1
2
3
v=grnorm(10)
A=gmatrix(grnorm(100),10,10,dup=FALSE)
gmatTimesDiagVec(A, v)
njm18/gmatrix documentation built on May 23, 2019, 7:07 p.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Description Usage Arguments Value Note Author(s) See Also Examples
Description
This function calculates A %*% diag(v). It is much faster than the direct calculation as it avoids the huge matrix multiplication problem.
Usage
1 | gmatTimesDiagVec(A, v)
|
Arguments
A |
An object of class |
v |
An object of class 'gvecotr' or a 'vector'. |
Value
Returns a gmatrix
Note
Note that to calculate the diag(v) %*% A one may use the efficient formula v*A.
Author(s)
Nathan Morris
See Also
Examples
1 2 3 | v=grnorm(10)
A=gmatrix(grnorm(100),10,10,dup=FALSE)
gmatTimesDiagVec(A, v)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.