urand nlines ncols
nlines
The number of lines of output to be generated.
ncols
The number of random numbers per output line.
ndigits = 4
Number of digits of precision in each random number.
scale_factor = 1.0
Factor by which the numbers are to be scaled (multiplied).
seed = 1
Seed for the random number generator.
The system random number generator is called to generate a sequence of random numbers in list form. By default, the random numbers will be uniformly distributed over the range 0 to 1. The number of lines of output, number of columns (random numbers) per line, and number of significant digits in each number may all be set by the caller.
Generate a sequence of 100 random numbers and graph them on the graphics terminal in point plot mode. Autoscaling is turned off so that the plot will be scaled to the rand 0-1 (the graph defaults) in both axes.
cl> urand 100 2 | graph po+ xa- ya-