all (Matlab function)

Test to determine if all elements are nonzero

Matlab/Scilab equivalent

Matlab Scilab

all

`and`_

Particular cases

Matlab all function can work with complexes, what Scilab and can not, so a call to abs function can be necessary when translating from Matlab to Scilab.

:The Matlab expression B=all(A) is translated into Scilab by

B=and(A): If A is a matrix, all(A) is equivalent to all(A,1) in Matlab whereas in Scilab and(A) is a logical AND of all elements of A. If A is a multidimensional array then Matlab treats the values along the first non-singleton dimension, but Scilab returns logical AND of all elements of A.

: :The Matlab expression B=all(A,dim) is translated into Scilab by

B=and(A,dim): In Scilab dim=1 is equivalent to dim=”r” and dim=2 is equivalent to dim=”c”. In Matlab, dim can be greater then the number of dimension of A (in this case, B=A), in Scilab you will get an error message.

:

Examples

Matlab Scilab

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

y = `and`_([1,1,0;1,0,1])
y = %F
y = `and`_([1,1,0;1,0,1],1)
y = [%T,%F,%F]