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D.2.10.6 sparsemat
Procedure from libraryrandom.lib (see random_lib).
- Usage:
- sparsemat(n,m[,p,b]); n,m,p,b integers
- Return:
- nxm integer matrix, p percent of the entries are 0, the remaining
are random coefficients >=1 and <= b; [defaults: (p,b) = (75,1)]
LIB "random.lib"; sparsemat(5,5);""; ==> 0,0,0,0,0, ==> 0,1,0,0,1, ==> 0,0,0,1,0, ==> 0,1,0,0,0, ==> 0,1,0,1,1 ==> sparsemat(5,5,95);""; ==> 1,0,0,0,0, ==> 0,0,0,0,0, ==> 0,0,0,0,0, ==> 0,0,0,0,0, ==> 0,0,0,1,0 ==> sparsemat(5,5,5);""; ==> 1,1,1,1,1, ==> 1,1,1,1,1, ==> 1,1,1,1,1, ==> 1,0,1,1,1, ==> 1,1,1,1,0 ==> sparsemat(5,5,50,100); ==> 0,17,24,80,0, ==> 0,13,30,45,0, ==> 19,0,0,0,0, ==> 93,0,23,0,69, ==> 0,88,44,31,0 |