submatrix | R Documentation |
Extract a specified submatrix from a sparse matrix rapidly
submatrix(m, rows, cols)
m |
The matrix |
rows |
The integer vectors of row index(es) |
cols |
The integer vectors of column index(es) |
This function implements faster submatrix extraction algorithm for the
CsparseMatrix
class in the package Matrix.
This function will return the specified submatrix as a matrix of corresponding type.
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