multi choice validate attributes

Hi,

I am trying to validate attributes for a function. one of the parameters can ba scalar or vector so i wrote:

validateattributes( offsetChange, {'numeric'}, {'scalar', 'column', 'row', 'nonempty'})

if I pass a scalar to the function, no problem. If I pass a vector, I get: Expected input number 3, offsetChange, to be a scalar.

is there a way to use validateatrributes the way I want, or do I need to revert to if statements?

thank you

Benoit

Answer 1

[Geoff Hayes]

Check the attributes section of http://www.mathworks.com/help/matlab/ref/validateattributes.html and look at

 'vector'  Row or column vector, or a scalar value

With just this attribute, you can replace the three in your function call and evaluate the way you want

 offsetchange = 43;
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
 offsetchange = [1 2 3];
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
 offsetchange = [1 2 3 4 5 6]';
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
 offsetchange = [1 2 3; 4 5 6];
 validateattributes( offsetchange, {'numeric'}, {'vector','nonempty'})
    Expected input to be a vector.

Only the last fails, as expected.

[Benoit Botton]

thanks Geoff, wondering how I missed it!