Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
2023.0.0 - Français


iscolumn

check if a variable is a column

Syntax

t=iscolumn(x)

Arguments

x

scalar,vector, matrix, hypermatrix, list, array of structures or cells

t

a boolean

Description

iscolumn(x) returns true if x is a column vector. Scalars are considered as columns.

Note that iscolumn([]) returns false.

Examples

iscolumn(ones(10,1))
iscolumn(1)
iscolumn(["s"; "t"; "u"])
iscolumn(rand(3,1,1))
iscolumn(rand(1,1,3))
s = struct();
iscolumn(s) // Empty structure
clear s
s.a = %z;
s.b = 2;
iscolumn(s) // Scalar array of structures
clear s
s(2,1).a = "w";
s(3,1).b = %t;
iscolumn(s) // Column array of structures
clear s
s(1,2).a = -2;
s(3,1).b = %pi;
iscolumn(s) // 2D array of structures
clear s
s(1,1,2).a = 3;
s(1,1,3).b = "test";
iscolumn(s) // 3D array of structures (with 2 singleton dims)

See also

  • isscalar — check if a variable is a scalar.
  • isrow — check if a variable is a row
  • ismatrix — checks if an object is a non-empty 1D or 2D matrix or array
  • issquare — check if a variable is a square matrix
  • isempty — check if a variable is an empty matrix or an empty list

History

VersionDescription
5.5.0 Function iscolumn introduced.
Report an issue
<< is<forme> is<forme> ismatrix >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Mon Mar 27 10:12:35 GMT 2023