nan

Array of NaN values.

Syntax

B = nan
B = nan(n)
B = nan(m, n)
B = nan(…, classname)

Description

Creates an array filled with NaN (Not-a-Number). Useful as a sentinel value for missing data. The optional class-name selects between 'single', 'double', and 'longdouble' representations of NaN (integer types do not have NaN).

Examples

nan(3)                   % 3×3 NaN
nan(2, 4, 'single')      % single-precision NaN array

See also

• inf — Array of Inf values.
• zeros — Array of all zeros.
• ones — Array of all ones.