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ismissing


Check for missing values.


Syntax


tf = ismissing(M)

Input argument


M

a variable

Output argument


tf

logical: result of 'ismissing'.

Description


ismissing returns a logical array which is true where elements of M are missing values.

missing data are defined as:

NaN for double or single

missing for string array

' ' for character array

'' for cell of character array

Example


A = ["Nel", NaN, "son"];
ismissing(A)
B = [1 2 NaN Inf];
ismissing(B)
C = 'Nel son'
ismissing(C)
D = {'Nel' '' 'son'}
ismissing(D)

See also


isfinite.

History


Version Description
1.0.0 initial version

Author


Allan CORNET

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