spy
Visualize sparsity pattern of matrix
Description
spy(
plots the sparsity pattern of matrix
S
)S
. Nonzero values are colored while zero values are white. The plot
displays the number of nonzeros in the matrix, nz = nnz(S)
.
spy(___,
specifies
MarkerSize
)MarkerSize
to give the size of the markers using either of the previous
input argument combinations.
Examples
Input Arguments
Tips
format +
is a text-based alternative for displaying the nonzero structure of a small matrix:format + eye(4)
ans = + + + +