isValid
Syntax
isValid(X)
Details
Determine if each element of X is null. Return true if at least one element is not null and false otherwise.
Parameters
X is a scalar/vector/matrix.
Returns
A Boolean scalar, pair, vector or matrix.
Examples
isValid(00i);
// output: false
isValid(1 NULL NULL 6 NULL 7);
// output: [true,false,false,true,false,true]
isValid(1/0);
// output: false