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Scilab Help >> Elementary Functions > isempty

isempty

check if a variable is an empty matrix or an empty list

Syntax

t=isempty(x)

Arguments

x

vector, matrix or list

t

a boolean

Description

isempty(x) returns true if x is an empty matrix or an empty list.

isempty() can be overloaded for custom t-lists and m-lists typeof.

Examples

a=1
isempty(a(2:$))
isempty(find(rand(1:10)==5))

See also

  • [] — ([]) empty matrix
  • emptystr — zero length string
  • size — size of objects
  • length — length of object

History

VersionDescription
6.0.2 isempty() can now be overloaded for custom tlist and mlist typeof.
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Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
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Last updated:
Thu Feb 14 14:57:13 CET 2019