submatrix {Corbi} | R Documentation |
Extract a submatrix from a matrix
Description
Extract a specified submatrix from a sparse matrix rapidly
Usage
submatrix(m, rows, cols)
Arguments
m |
The matrix |
rows |
The integer vectors of row index(es) |
cols |
The integer vectors of column index(es) |
Details
This function implements faster submatrix extraction algorithm for the
CsparseMatrix
class in the package Matrix.
Value
This function will return the specified submatrix as a matrix of corresponding type.
[Package Corbi version 0.6-2 Index]