all

Returns a logical that indicates whether all of the corresponding elements of the input are nonzero.

Syntax

R = all(x)

R = all(x,dim)

Inputs

x: scalar | complex | vector | matrix; Type: double | integer | char | string | logical | struct | cell; Dimension: scalar | string | vector | matrix
dim: The dimension on which to operate; Default: first non-singleton dimension.; Type: integer; scalar

Outputs

R: scalar | vector | matrix

Examples

Vector input:

R = all([1,1,1,0])

R = 0

Matrix input:

R = all([1,0,1;1,0,0;1,1,1])

R = [ 1 0 0 ]

Matrix input with dim:

R = all([1,0,1;1,0,0;1,1,1], 2)

R = [ 0; 0; 1 ]

Comments

If a matrix is entered, returns a row vector of logicals with each element indicating whether all of the elements of the corresponding column of the matrix are nonzero. If dim is input all works along the dimension. The default value for dim is 1.