sprand - sparse random matrix

Calling Sequence

sp=sprand(nrows,ncols,fill [,typ])

Parameters

• nrows : integer (number of rows)
• ncols : integer (number of columns)
• fill : filling coefficient (density)
• typ : character string ('uniform' (default) or 'normal')
• sp : sparse matrix

Description

sp=sprand(nrows,ncols,fill) returns a sparse matrix sp with nrows rows, ncols columns and approximately fill*nrows*ncols non-zero entries.

If typ='uniform' uniformly distributed values on [0,1] are generated. If typ='normal' normally distributed values are generated (mean=0 and standard deviation=1).

Examples

W=sprand(100,1000,0.001);
 

See Also

sparse  full  rand  speye