Description Usage Arguments Examples
is.rowblock
tests if its argument is one row
block-matrix
is.colblock
tests if its argument
is one column block-matrix
is.oneblock
tests
if its argument is one single block-matrix
is.megablock
tests if its argument is a
block-matrix with more than one block by rows and columns
1 | is.rowblock(x)
|
x |
an R object |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | # create a regular matrix
a = matrix(runif(20), 5, 4)
# block-matrix with one single block
A1 = blockmatrix(a, 5, 4)
# block-matrix with one column block
A2 = blockmatrix(a, c(2, 3), 4)
# block-matrix with one row block
A3 = blockmatrix(a, 5, c(2,2))
# block-matrix with 2 row-blocks and 2 col-blocks
A4 = blockmatrix(a, c(2, 3), c(2, 2))
# test if row-block
is.rowblock(A1) # TRUE
is.rowblock(A2) # FALSE
is.rowblock(A3) # TRUE
is.rowblock(A4) # FALSE
# test if col-block
is.colblock(A1) # TRUE
is.colblock(A2) # TRUE
is.colblock(A3) # FALSE
is.colblock(A4) # FALSE
# test if one-block
is.oneblock(A1) # TRUE
is.oneblock(A2) # FALSE
is.oneblock(A3) # FALSE
is.oneblock(A4) # FALSE
# test if mega-block
is.megablock(A1) # FALSE
is.megablock(A2) # FALSE
is.megablock(A3) # FALSE
is.megablock(A4) # TRUE
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