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Справка Scilab >> Основные функции > iscolumn

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 — проверка, является ли переменная пустой матрицей или пустым списком

History

ВерсияОписание
5.5.0 Function iscolumn introduced.
Scilab Enterprises
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
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Last updated:
Tue Feb 14 15:13:21 CET 2017