randomMutableMatrix(ZZ,ZZ,RR,ZZ) -- a random mutable matrix of integers

Synopsis

• Usage:

  randomMutableMatrix(nrows,ncols,zerof,max)

• Function: randomMutableMatrix
• Inputs:

  • nrows, an integer
  • ncols, an integer
  • zerof, a real number, between 0 and 1
  • max, an integer
• Outputs:

  • a mutable matrix, a random mutable nrows by ncols matrix of integers. The absolute value of the entries is less than max, and the frequency of entries equal to zero is given by zerof.
• Optional inputs:

  • Dense => default value false, whether the encoding of the matrix should be dense or not: see MutableMatrix

Description

i1 : randomMutableMatrix(10,15,.9,100)

o1 = | . .   .  .  .   . . .   . .  . .   .  . . |
     | . -28 .  .  .   . . .   . 16 . .   .  . . |
     | . .   .  .  .   . . .   . .  . .   47 . . |
     | . .   .  .  .   . . .   . .  . .   .  . . |
     | . .   .  .  .   . . .   . .  . .   .  . . |
     | . .   .  77 .   . . .   . .  . .   .  . . |
     | . .   .  .  .   . . -4  . .  . .   .  . . |
     | . 74  59 .  -52 . . -26 . .  . .   .  . . |
     | . 36  46 .  .   . . .   . .  . -89 .  . . |
     | . .   55 .  .   . . .   . .  . .   .  . . |

o1 : MutableMatrix

See also

• mutableMatrix -- make a mutable matrix
• fillMatrix -- fill a mutable matrix with random numbers
• setRandomSeed -- set starting point for random number generator
• random -- get a random element