randn

Standard-normal random numbers (mean 0, variance 1).

Syntax

r = randn
r = randn(n)
r = randn(m, n)
r = randn(d1, d2, ...)

Description

Returns pseudorandom values drawn from the standard normal distribution N(0, 1). Same shape arguments as rand. For other normal distributions, scale and shift: mu + sigma * randn(…).

Examples

randn                    % e.g. -0.7283
randn(1000, 1)           % 1000-sample column
5 + 2 * randn(100, 1)    % N(5, 4) samples

See also

• rand — Uniformly distributed random numbers in [0, 1].
• randi — Uniformly distributed random integers.