rand

Module rand provides pseudo-random number generation.

As with the Go math/rand (opens in a new tab) package on which it is based, this module is not safe for use for security-sensitive applications.

Functions

float

Function signature

float() float

Returns a random float between 0 and 1.

Example

>>> rand.float()
0.44997274093073925

int

Function signature

int() int

Returns a non-negative pseudo-random 64 bit integer.

Example

>>> rand.int()
1667297659146365586

intn

Function signature

intn(n int) int

Returns a non-negative pseudo-random 64 bit integer in the range [0, n).

Example

>>> rand.intn(10)
7

norm_float

Function signature

norm_float() float

Returns a normally distributed float in the range [-math.MaxFloat64, +math.MaxFloat64] with standard normal distribution (mean = 0, stddev = 1).

Example

>>> rand.norm_float()
0.44997274093073925

exp_float

Function signature

exp_float() float

Returns an exponentially distributed float in the range (0, +math.MaxFloat64] with an exponential distribution whose rate parameter (lambda) is 1 and whose mean is 1/lambda (1).

Example

>>> rand.exp_float()
0.17764313580968902

shuffle

Function signature

shuffle(list)

Shuffles a list in place and returns it.

Example

>>> l := [1, 2, 3, 4, 5]
>>> rand.shuffle(l)
[3, 1, 5, 4, 2]

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