zipf#

Description#

Returns a Zipf-distributed integer, for N elements and characteristic exponent s. The computational cost of choosing a single random number is logarithmic in the argument N. More importantly, the memory cost is linear for N. Because of this, the argument N must be in the inclusive range [1, 16777215].

Return type#

int64

Domain#

This is a scalar function (calculates a single output value for a single input row.)

Categories#

Usage#

zipf(s, n)

Argument

Type

Optional

Repeatable

Restrictions

s

int64

no

no

constant

n

int64

no

no

constant

Examples#

make_col zipf_kind:zipf(1, 20)

Generates a Zipf-distributed pseudo-random integer for N=20 elements and the characteristic exponent s = 1. The arguments (s and N) must be constants.